Sprint Backlog 05

COMPLETED Sprint and product backlog refinement   agile

COMPLETED Add AI generated sprint summary   infra

COMPLETED Add skill to generate release notes   infra

COMPLETED Create a claude code skill to open a new sprint   code

COMPLETED Resolve all of the OpenSSL leaks in valgrind   code

COMPLETED Investigate valgrind leak on sqlgen   code

==2599359==
==2599359== HEAP SUMMARY:
==2599359==     in use at exit: 11,421 bytes in 78 blocks
==2599359==   total heap usage: 403,744 allocs, 403,666 frees, 161,473,513 bytes allocated
==2599359==
==2599359== 1,944 bytes in 9 blocks are definitely lost in loss record 20 of 21
==2599359==    at 0x4F2B818: malloc (vg_replace_malloc.c:446)
==2599359==    by 0x5AE29FF: PQmakeEmptyPGresult (fe-exec.c:161)
==2599359==    by 0x5AEA9F2: pqParseInput3 (fe-protocol3.c:264)
==2599359==    by 0x5AE5853: parseInput (fe-exec.c:1997)
==2599359==    by 0x5AE5975: PQgetResult (fe-exec.c:2083)
==2599359==    by 0x5AE5FB7: PQexecFinish (fe-exec.c:2388)
==2599359==    by 0x5AE5D98: PQprepare (fe-exec.c:2275)
==2599359==    by 0x5A7F688: sqlgen::postgres::Connection::insert(sqlgen::dynamic::Insert const&, std::vector<std::vector<std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, std::allocator<std::vector<std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > > > const&) (Connection.cpp:44)
==2599359==    by 0x525189F: sqlgen::Session<sqlgen::postgres::Connection>::insert(sqlgen::dynamic::Insert const&, std::vector<std::vector<std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, std::allocator<std::vector<std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > > > const&) (Session.hpp:50)
==2599359==    by 0x523F4FF: sqlgen::Transaction<sqlgen::Session<sqlgen::postgres::Connection> >::insert(sqlgen::dynamic::Insert const&, std::vector<std::vector<std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, std::allocator<std::vector<std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > > > const&) (Transaction.hpp:61)
==2599359==    by 0x523EE20: rfl::Result<rfl::Ref<sqlgen::Transaction<sqlgen::Session<sqlgen::postgres::Connection> > > > sqlgen::insert_impl<__gnu_cxx::__normal_iterator<ores::accounts::repository::account_entity const*, std::vector<ores::accounts::repository::account_entity, std::allocator<ores::accounts::repository::account_entity> > >, __gnu_cxx::__normal_iterator<ores::accounts::repository::account_entity const*, std::vector<ores::accounts::repository::account_entity, std::allocator<ores::accounts::repository::account_entity> > >, sqlgen::Transaction<sqlgen::Session<sqlgen::postgres::Connection> > >(rfl::Ref<sqlgen::Transaction<sqlgen::Session<sqlgen::postgres::Connection> > > const&, __gnu_cxx::__normal_iterator<ores::accounts::repository::account_entity const*, std::vector<ores::accounts::repository::account_entity, std::allocator<ores::accounts::repository::account_entity> > >, __gnu_cxx::__normal_iterator<ores::accounts::repository::account_entity const*, std::vector<ores::accounts::repository::account_entity, std::allocator<ores::accounts::repository::account_entity> > >, bool) requires is_connection<sqlgen::Transaction<sqlgen::Session<sqlgen::postgres::Connection> > > (insert.hpp:46)
==2599359==    by 0x523EB55: auto sqlgen::insert_impl<std::vector<ores::accounts::repository::account_entity, std::allocator<ores::accounts::repository::account_entity> >, rfl::Ref<sqlgen::Transaction<sqlgen::Session<sqlgen::postgres::Connection> > > >(rfl::Ref<sqlgen::Transaction<sqlgen::Session<sqlgen::postgres::Connection> > > const&, std::vector<ores::accounts::repository::account_entity, std::allocator<ores::accounts::repository::account_entity> > const&, bool) (insert.hpp:69)
==2599359==
==2599359== 3,672 bytes in 17 blocks are definitely lost in loss record 21 of 21
==2599359==    at 0x4F2B818: malloc (vg_replace_malloc.c:446)
==2599359==    by 0x5AE29FF: PQmakeEmptyPGresult (fe-exec.c:161)
==2599359==    by 0x5AEA78E: pqParseInput3 (fe-protocol3.c:200)
==2599359==    by 0x5AE5853: parseInput (fe-exec.c:1997)
==2599359==    by 0x5AE5975: PQgetResult (fe-exec.c:2083)
==2599359==    by 0x5AE5FB7: PQexecFinish (fe-exec.c:2388)
==2599359==    by 0x5AE5E15: PQexecPrepared (fe-exec.c:2298)
==2599359==    by 0x5A7FB5B: sqlgen::postgres::Connection::insert(sqlgen::dynamic::Insert const&, std::vector<std::vector<std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, std::allocator<std::vector<std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > > > const&) (Connection.cpp:72)
==2599359==    by 0x525189F: sqlgen::Session<sqlgen::postgres::Connection>::insert(sqlgen::dynamic::Insert const&, std::vector<std::vector<std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, std::allocator<std::vector<std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > > > const&) (Session.hpp:50)
==2599359==    by 0x523F4FF: sqlgen::Transaction<sqlgen::Session<sqlgen::postgres::Connection> >::insert(sqlgen::dynamic::Insert const&, std::vector<std::vector<std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, std::allocator<std::vector<std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > > > const&) (Transaction.hpp:61)
==2599359==    by 0x523EE20: rfl::Result<rfl::Ref<sqlgen::Transaction<sqlgen::Session<sqlgen::postgres::Connection> > > > sqlgen::insert_impl<__gnu_cxx::__normal_iterator<ores::accounts::repository::account_entity const*, std::vector<ores::accounts::repository::account_entity, std::allocator<ores::accounts::repository::account_entity> > >, __gnu_cxx::__normal_iterator<ores::accounts::repository::account_entity const*, std::vector<ores::accounts::repository::account_entity, std::allocator<ores::accounts::repository::account_entity> > >, sqlgen::Transaction<sqlgen::Session<sqlgen::postgres::Connection> > >(rfl::Ref<sqlgen::Transaction<sqlgen::Session<sqlgen::postgres::Connection> > > const&, __gnu_cxx::__normal_iterator<ores::accounts::repository::account_entity const*, std::vector<ores::accounts::repository::account_entity, std::allocator<ores::accounts::repository::account_entity> > >, __gnu_cxx::__normal_iterator<ores::accounts::repository::account_entity const*, std::vector<ores::accounts::repository::account_entity, std::allocator<ores::accounts::repository::account_entity> > >, bool) requires is_connection<sqlgen::Transaction<sqlgen::Session<sqlgen::postgres::Connection> > > (insert.hpp:46)
==2599359==    by 0x523EB55: auto sqlgen::insert_impl<std::vector<ores::accounts::repository::account_entity, std::allocator<ores::accounts::repository::account_entity> >, rfl::Ref<sqlgen::Transaction<sqlgen::Session<sqlgen::postgres::Connection> > > >(rfl::Ref<sqlgen::Transaction<sqlgen::Session<sqlgen::postgres::Connection> > > const&, std::vector<ores::accounts::repository::account_entity, std::allocator<ores::accounts::repository::account_entity> > const&, bool) (insert.hpp:69)
==2599359==
==2599359== LEAK SUMMARY:
==2599359==    definitely lost: 5,616 bytes in 26 blocks
==2599359==    indirectly lost: 0 bytes in 0 blocks
==2599359==      possibly lost: 0 bytes in 0 blocks
==2599359==    still reachable: 5,805 bytes in 52 blocks
==2599359==         suppressed: 0 bytes in 0 blocks
==2599359== Reachable blocks (those to which a pointer was found) are not shown.
==2599359== To see them, rerun with: --leak-check=full --show-leak-kinds=all
==2599359==
==2599359== For lists of detected and suppressed errors, rerun with: -s
==2599359== ERROR SUMMARY: 2 errors from 2 contexts (suppressed: 0 from 0)

COMPLETED Copy across icons and other assets to package   code

/opt/OreStudio/0.0.3/bin/ores.qt
qt.svg: Cannot open file '/home/marco/money-pound-box-line.svg', because: No such file or directory
qt.svg: Cannot open file '/home/marco/money-pound-box-line.svg', because: No such file or directory

COMPLETED Implement database configuration   code

COMPLETED Fix site links to main page   doc

COMPLETED Add JSON parsing support for currency   code

COMPLETED Version of ores.qt does not update   code

COMPLETED Minor updates to UML diagrams   code

COMPLETED Add support for project planning   infra

COMPLETED Add a "detached" mode   code

COMPLETED Merge update and create currency messages   code

• Architectural Assessment
  
  • Impact Summary
    

    This change affects all three main architectural layers:

    • Infrastructure Layer: Reduce message protocol from 4 to 2 types (breaking change).
    • Domain Layer: Merge handlers and simplify repository interface.
    • Application Layer: Simplify Qt dialog and client code.
  • Current State
    

    Infrastructure (ores.comms):

    • Message types: create_currency_request/response (0x1009/0x100A) and update_currency_request/response (0x1003/0x1004)

    Domain (ores.risk):

    • handle_create_currency_request() calls currency_repo_.write()
    • handle_update_currency_request() calls currency_repo_.update()
    • Both methods effectively do the same thing: insert new row with temporal versioning.

    Application (ores.qt):

    • CurrencyDetailDialog uses isAddMode_ flag to branch on message type.
    • Lines 214-224: Sends different request types.
    • Lines 235-251: Deserializes different response types.
    • Lines 277-287: Emits different signals (currencyCreated vs currencyUpdated).
  • Affected Files
    
    1. projects/ores.comms/include/ores.comms/protocol/message_types.hpp
    2. projects/ores.risk/include/ores.risk/messaging/protocol.hpp
    3. projects/ores.risk/src/messaging/protocol.cpp
    4. projects/ores.risk/src/messaging/risk_message_handler.cpp
    5. projects/ores.risk/include/ores.risk/messaging/risk_message_handler.hpp
    6. projects/ores.risk/include/ores.risk/repository/currency_repository.hpp
    7. projects/ores.risk/src/repository/currency_repository.cpp
    8. projects/ores.qt/src/CurrencyDetailDialog.cpp
    9. projects/ores.qt/include/ores.qt/CurrencyDetailDialog.hpp
    10. Test files for all affected components
• Migration Plan
  
  • Step 1: Domain Layer - Repository Simplification
    
    • [ ] Remove update() method from currency_repository class.
    • [ ] Update repository tests to use write() for both create and update scenarios.
    • [ ] Verify all tests pass.
    • Build target: ores.risk.lib
    • Test target: ores.risk.tests
  • Step 2: Domain Layer - Messaging Consolidation
    
    • [ ] Rename create_currency_request/response to save_currency_request/response.
    • [ ] Remove update_currency_request/response types from protocol.hpp and protocol.cpp.
    • [ ] Merge handle_create_currency_request() and handle_update_currency_request() into handle_save_currency_request()
    • [ ] Update risk_message_handler to use single handler
    • [ ] Update messaging tests
    • [ ] Verify all tests pass
    • Build target: ores.risk.lib
    • Test target: ores.risk.tests
  • Step 3: Infrastructure Layer - Protocol Update
    
    • [ ] In message_types.hpp, rename create_currency_request/response to save_currency_request/response
    • [ ] Remove update_currency_request/response enum values
    • [ ] Update protocol version to indicate breaking change
    • [ ] Update protocol documentation
    • Build target: ores.comms.lib
    • Test target: ores.comms.tests
  • Step 4: Application Layer - Qt Dialog Simplification
    
    • [ ] In CurrencyDetailDialog.cpp, simplify onSaveClicked() to always send save_currency_request
    • [ ] Remove branching on isAddMode_ for message type selection (lines 214-224)
    • [ ] Simplify response handling to use single save_currency_response (lines 235-251)
    • [ ] Consider keeping isAddMode_ for UI behavior (e.g., ISO code readonly after save)
    • [ ] Keep or merge currencyCreated and currencyUpdated signals based on caller needs
    • [ ] Update Qt tests
    • Build target: ores.qt
    • Manual test: Create and edit currencies in GUI
  • Step 5: Application Layer - Client Updates
    
    • [ ] Review ores.client for any usage of update/create currency messages
    • [ ] Update if needed (client likely uses repository directly)
    • Build target: ores.client
    • Manual test: REPL currency operations
  • Step 6: Documentation and Diagrams
    
    • [ ] Update projects/ores.risk/modeling/ores.risk.puml to reflect merged messages
    • [ ] Update projects/ores.comms/modeling/ores.comms.puml to reflect protocol changes
    • [ ] Regenerate diagrams with: cmake --build --target generate_ores_risk_diagram --preset linux-clang-debug
    • [ ] Regenerate diagrams with: cmake --build --target generate_ores_comms_diagram --preset linux-clang-debug
  • Step 7: Integration Testing
    
    • [ ] Build entire project: cmake --build --preset linux-clang-debug
    • [ ] Run all tests: cmake --build --preset linux-clang-debug --target rat
    • [ ] Manual end-to-end test: Create currency via GUI → Save → Edit → Save → Verify history
    • [ ] Verify currency history shows proper temporal versioning
    • [ ] Test with service: Start service, connect with Qt client, perform create/update operations
  • Step 8: Backwards Compatibility Consideration
    

    Note: This is a breaking protocol change. Clients using old protocol will not be compatible.

    Options to consider:

    • Accept breaking change (simpler, justified by better design)
    • Implement protocol version negotiation (more complex, may be overkill)
    • Recommended: Accept breaking change, document in release notes

CANCELLED Split console recipes by entity   code

COMPLETED Uninformative incompatible protocol version error in qt   code

2025-11-17 23:27:02.733675 [INFO] [ores.comms.server] ORES Server starting on port 55555 (identifier: ores-service-v1)
2025-11-17 23:27:02.733701 [INFO] [ores.comms.server] Protocol version: 2.0
2025-11-17 23:27:02.733816 [INFO] [ores.comms.server] Server listening on port 55555

2025-11-17 23:27:26.381109 [INFO] [ores.comms.client] Sent handshake request. Client: ores-qt-client Version: 1.0
2025-11-17 23:27:26.381132 [DEBUG] [ores.comms.client] About to read handshake response frame
2025-11-17 23:27:26.381155 [DEBUG] [ores.comms.connection] Waiting to read the next frame.
2025-11-17 23:27:26.392206 [ERROR] [ores.comms.connection] Network error in read_frame: stream truncated [asio.ssl.stream:1]
2025-11-17 23:27:26.392293 [ERROR] [ores.comms.client] Failed to read handshake response.  Error code: 7
2025-11-17 23:27:26.392325 [ERROR] [ores.comms.client] Protocol handshake failed.
2025-11-17 23:27:26.392430 [INFO] [ores.comms.client] Disconnected from server
2025-11-17 23:27:26.392464 [DEBUG] [ores.comms.client] connect_sync: task completed, result=false
2025-11-17 23:27:26.392551 [DEBUG] [ores.comms.client] connect_sync: returning false
2025-11-17 23:27:26.392652 [DEBUG] [ores.comms.login_dialog] On connection result called.
2025-11-17 23:27:26.392683 [WARN] [ores.comms.login_dialog] Connection was not successful.
2025-11-17 23:27:26.392704 [INFO] [ores.comms.login_dialog] Enable form: true

2025-11-17 23:27:02.733816 [INFO] [ores.comms.server] Server listening on port 55555
2025-11-17 23:27:26.377606 [INFO] [ores.comms.server] Accepted connection from 127.0.0.1:48894
2025-11-17 23:27:26.377913 [INFO] [ores.comms.session] Session started for client: 127.0.0.1:48894
2025-11-17 23:27:26.381088 [DEBUG] [ores.comms.session] Starting server handshake process...
2025-11-17 23:27:26.381132 [DEBUG] [ores.comms.session] About to read handshake request frame from client
2025-11-17 23:27:26.381178 [DEBUG] [ores.comms.connection] Waiting to read the next frame.
2025-11-17 23:27:26.381293 [DEBUG] [ores.comms.connection] Read header of size: 32
2025-11-17 23:27:26.381332 [DEBUG] [ores.comms.protocol.frame] Deserializing frame header from data of size: 32
2025-11-17 23:27:26.381358 [ERROR] [ores.comms.protocol.frame] Invalid major version: 1
2025-11-17 23:27:26.381382 [ERROR] [ores.comms.connection] Failed to deserialize header, error: 1
2025-11-17 23:27:26.381422 [ERROR] [ores.comms.session] Failed to read handshake request: error code 1
2025-11-17 23:27:26.381454 [WARN] [ores.comms.session] Handshake failed for client: 127.0.0.1:48894
2025-11-17 23:27:26.381478 [DEBUG] [ores.comms.server] Session completed, active connections: 0

• Problem Analysis
  

  Current behavior:

  1. Client (v1) sends handshake request with v1 in frame header
  2. Server tries to deserialize frame header
  3. Frame deserializer at frame.cpp:204-207 checks version and returns version_mismatch error
  4. Session cannot read the frame, logs error, and closes connection
  5. Client receives "stream truncated" error (connection closed unexpectedly)
  6. Client shows uninformative "Failed to connect to server" message

  Root cause:

  The protocol version check happens too early - during frame header deserialisation in frame.cpp. By the time the error is detected, the server cannot send a proper error response because it failed to even read the frame.

  What should happen:

  1. Server reads handshake request frame (even with mismatched version)
  2. Session deserializes handshake request and extracts client version
  3. Session checks version compatibility (this code already exists at session.cpp:101-119)
  4. Server sends handshake_response with version details and version_mismatch error code
  5. Client receives response, extracts version information, and shows meaningful error message
  6. Client logs protocol version on connect (like server does)
  7. Qt About dialog shows protocol version for easy troubleshooting
• Implementation Plan
  
  • COMPLETED Task 1: Allow Reading Frames During Handshake
    
    • [X] Modify frame::deserialize_header() to accept optional skip_version_check parameter (default false)
    • [X] Skip version validation when parameter is true
    • [X] Update connection::read_frame() to support lenient reading during handshake
    • [X] Ensure session uses lenient reading for handshake request

    Modified files:

    • projects/ores.comms/include/ores.comms/protocol/frame.hpp - Added skip_version_check parameter
    • projects/ores.comms/src/protocol/frame.cpp - Implemented conditional version checking
    • projects/ores.comms/include/ores.comms/net/connection.hpp - Added parameter to read_frame()
    • projects/ores.comms/src/net/connection.cpp - Pass through skip_version_check parameter
    • projects/ores.comms/src/net/session.cpp - Use lenient reading for handshake request
  • COMPLETED Task 2: Add Client Protocol Version Logging
    
    • [X] Add protocol version logging in client.cpp on successful connection
    • [X] Format: "Protocol version: X.Y" matching server format
    • [X] Log after SSL handshake, before protocol handshake

    Modified files:

    • projects/ores.comms/src/net/client.cpp - Added protocol version logging at client.cpp:102-104
  • COMPLETED Task 3: Improve Client Error Handling
    
    • [X] When handshake fails, check if response is handshake_response with version_mismatch
    • [X] Extract server and client version from response
    • [X] Create detailed error message: "Incompatible protocol version. Server: X.Y, Client: A.B"
    • [X] Return this message through the error path to LoginDialog
    • [X] Update LoginDialog to use client_->last_error() instead of hardcoded message

    Modified files:

    • projects/ores.comms/include/ores.comms/net/client.hpp - Added last_error() method and last_error_ member
    • projects/ores.comms/src/net/client.cpp - Store detailed error message on version mismatch, implement last_error() getter
    • projects/ores.qt/src/LoginDialog.cpp - Use client_->last_error() to get detailed error message (lines 207-212)
  • COMPLETED Task 4: Add Protocol Version to Qt About Dialog
    
    • [X] Locate Qt About dialog implementation
    • [X] Add protocol version display: "Protocol Version: X.Y"
    • [X] Place near application version information

    Modified files:

    • projects/ores.qt/src/AboutDialog.cpp - Added protocol version to version string display
  • COMPLETED Task 5: Testing
    
    • [X] Test with matching versions (should work normally)
      • All unit tests pass (699 assertions in 146 test cases)
      • Build successful for all components
    • [X] Verify client logs protocol version on connect
      • Added logging at client.cpp:102-106: "Protocol version: X.Y (client: identifier)"
    • [X] Verify About dialog shows protocol version
      • Added to AboutDialog.cpp:73-77: "Version X | Build Y | Protocol Z.W"
    • [X] Verify server sends proper handshake_response on version mismatch
      • Server already sends proper handshake_response with version_compatible flag (session.cpp:104-111)
      • Now accessible due to lenient frame reading during handshake
    • [X] Add automated version mismatch tests
      • Added 3 test cases to frame_tests.cpp
      • Tests verify strict mode rejects mismatched versions
      • Tests verify lenient mode accepts mismatched versions
      • Tests simulate handshake scenario with version mismatch
      • All comms tests pass: 62 assertions in 9 test cases (up from 49 in 6)

    Modified files:

    • projects/ores.comms/tests/frame_tests.cpp - Added version mismatch test cases

    Testing notes:

    • Manual testing with mismatched versions would require temporarily changing PROTOCOL_VERSION_MAJOR in message_types.hpp, rebuilding, and running server/client with different versions
    • The implementation ensures server can read handshake request even with version mismatch and sends detailed handshake_response
    • Client stores detailed error message in last_error_ accessible via last_error()

COMPLETED Implement delete account   code

• Tasks
  

  Backend:

  • [X] Add delete_account message types to protocol
  • [X] Add delete_account_request/response message structs
  • [X] Implement serialize/deserialize for delete_account messages
  • [X] Add remove() method to account_repository for bitemporal soft delete
  • [X] Implement handle_delete_account_request in message handler
  • [X] Add protocol serialization tests (5 test cases)
  • [X] Add message handler tests (2 test cases for success and failure)
  • [X] Build and run all tests (90 test cases, 346 assertions, all passing)

  CLI:

  • [X] Add "accounts" to entity enum
  • [X] Create delete_options configuration struct
  • [X] Add delete_options to main options struct
  • [X] Implement delete command parser infrastructure
  • [X] Implement delete_account() in application (supports UUID or username)
  • [X] Implement delete_data() dispatcher method
  • [X] Add delete command to help text
  • [X] Build and test CLI delete command
• COMPLETED Implementation Details
  
  • Backend
    

    Modified files:

    • projects/ores.comms/include/ores.comms/protocol/message_types.hpp - Added delete_account_request (0x2009) and delete_account_response (0x200A) message types
    • projects/ores.accounts/include/ores.accounts/messaging/protocol.hpp - Added delete_account_request and delete_account_response structs with serialize/deserialize methods
    • projects/ores.accounts/src/messaging/protocol.cpp - Implemented serialization using write_uuid/read_uuid for account_id and write_bool/read_bool + write_string/read_string for response
    • projects/ores.accounts/include/ores.accounts/repository/account_repository.hpp - Added remove() method declaration
    • projects/ores.accounts/src/repository/account_repository.cpp - Implemented remove() method using bitemporal soft delete (sets valid_to = current_timestamp via database trigger)
    • projects/ores.accounts/src/service/account_service.cpp - Updated delete_account() from stub to call repository remove() method
    • projects/ores.accounts/include/ores.accounts/messaging/accounts_message_handler.hpp - Added handle_delete_account_request() declaration and updated class documentation
    • projects/ores.accounts/src/messaging/accounts_message_handler.cpp - Added delete_account_request case to switch statement and implemented handler with try/catch for error handling
    • projects/ores.accounts/tests/messaging_protocol_tests.cpp - Added 5 serialization tests: request with valid UUID, request serialize/deserialize, response success, response failure, response serialize/deserialize
    • projects/ores.accounts/tests/messaging_accounts_message_handler_tests.cpp - Added 2 handler tests: successful deletion and deletion of non-existent account
  • CLI
    

    Modified files:

    • projects/ores.cli/include/ores.cli/config/entity.hpp - Added "accounts" to entity enum
    • projects/ores.cli/include/ores.cli/config/delete_options.hpp - Created delete_options struct with target_entity and key fields
    • projects/ores.cli/src/config/delete_options.cpp - Implemented stream output operator for delete_options
    • projects/ores.cli/include/ores.cli/config/options.hpp - Added optional deleting field to main options struct
    • projects/ores.cli/src/config/options.cpp - Updated stream output operator to include deleting field
    • projects/ores.cli/src/config/parser.cpp - Added delete command constants, make_delete_options_description(), read_delete_options(), and integrated delete command into handle_command() and help text
    • projects/ores.cli/include/ores.cli/app/application.hpp - Added delete_account() and delete_data() method declarations
    • projects/ores.cli/src/app/application.cpp - Implemented delete_account() (supports deletion by UUID or username) and delete_data() (dispatcher for entity-specific deletion)
• Notes
  

  The implementation follows the same bitemporal soft-delete pattern used for currencies. When an account is deleted, the database trigger closes the temporal record by setting valid_to = current_timestamp, preserving the account's history while marking it as no longer active. The delete operation validates that the account exists before attempting deletion and returns appropriate success/failure messages.

  The CLI implementation adds a new "delete" command that supports deleting accounts by either UUID or username. The command automatically detects whether the provided key is a UUID and, if not, treats it as a username and performs a lookup to find the corresponding account ID. This provides a flexible user experience while maintaining type safety at the database level.

COMPLETED Reorganise CLI structure by entity   code

./ores.cli export --format xml --entity currencies

./ores.cli currencies export

./ores.cli currencies list --format table

• Tasks
  
  • [X] Analyze current CLI structure and command parsing
  • [X] Design new entity-based command structure
  • [X] Implement new command parser for entity-first syntax
  • [X] Migrate currencies commands to new structure
  • [X] Migrate accounts commands to new structure
  • [X] Add feature flags commands
  • [X] Update recipes to use new command structure
  • [X] Build and test all CLI commands
  • [X] Update help text and documentation
  • [X] Remove legacy command-based syntax support
• COMPLETED Phase 1: Foundation Structures
  

  Modified files:

  • projects/ores.cli/include/ores.cli/config/operation.hpp - Created operation enum with import_data, export_data, list, delete_entity, add
  • projects/ores.cli/include/ores.cli/config/list_options.hpp - Created list_options structure for listing entities
  • projects/ores.cli/src/config/list_options.cpp - Implemented stream output operator
  • projects/ores.cli/include/ores.cli/config/options.hpp - Added optional<list_options> listing field
  • doc/agile/v0/sprint_backlog_05.org - Added design documentation

  Notes:

  • All new structures compile successfully
  • Design documented in sprint backlog
  • Pull request: https://github.com/OreStudio/OreStudio/pull/98
  • Next phase: Implement currencies entity commands
• COMPLETED Phase 2: Currencies Entity Commands
  

  Modified files:

  • projects/ores.cli/src/config/parser.cpp - Added currencies command handler

  Implementation details:

  • Added currencies as a top-level command alongside import/export/delete
  • Parser now accepts: ./ores.cli currencies <operation> [options]
  • Supported operations: import, export, list, delete
  • Auto-populates entity field with "currencies"
  • Reuses existing option structures (import_options, export_options, delete_options)
  • Both old and new syntax work side-by-side

  Examples:

  • New: ./ores.cli currencies export --format xml
  • Old: ./ores.cli export --entity currencies --format xml

  Testing:

  • [X] Compiles successfully
  • [X] Help text shows currencies command
  • [X] Operation-specific help works (e.g. currencies export --help)
  • [X] Parser validates operations correctly

  Notes:

  • List operation reuses export options for now (future: dedicated list_options)
  • Ready for additional entities (accounts, feature_flags) to follow same pattern
  • Minimal changes maximize compatibility
• COMPLETED Phase 3: All Entities Implementation
  

  Modified files:

  • projects/ores.cli/include/ores.cli/config/entity.hpp - Added feature_flags to enum
  • projects/ores.cli/src/config/parser.cpp - Added accounts and feature_flags handlers

  Implementation details:

  • Added accounts entity command with operations: list, delete, add
  • Added feature_flags entity command with operations: list, delete, add
  • All entities follow the same pattern as currencies
  • Add operation marked as "not yet implemented" for accounts and feature_flags
  • Both old and new syntax continue to work side-by-side

  Supported commands:

  1. Currencies:
     • ./ores.cli currencies import --target file.xml
     • ./ores.cli currencies export --format xml
     • ./ores.cli currencies list --format json
     • ./ores.cli currencies delete --key USD
  2. Accounts:
     • ./ores.cli accounts list --format json
     • ./ores.cli accounts delete --key username
     • ./ores.cli accounts add (placeholder)
  3. Feature Flags:
     • ./ores.cli feature_flags list --format json
     • ./ores.cli feature_flags delete --key flag_name
     • ./ores.cli feature_flags add (placeholder)

  Testing:

  • [X] All code compiles without warnings
  • [X] Help text shows all three entity commands
  • [X] Operation-specific help works for all entities
  • [X] Parser validates operations correctly for each entity
  • [X] Error messages guide users to valid operations

  Summary:

  • Complete entity-based CLI structure implemented for all current entities
  • Backward compatible with existing command-based syntax
  • Foundation in place for future entity additions
  • Clean, consistent pattern across all entities
• COMPLETED Phase 4: Legacy Syntax Removal
  

  Modified files:

  • projects/ores.cli/src/config/parser.cpp - Removed legacy command handlers
  • doc/recipes/cli_entity_recipes.org - Removed legacy syntax examples

  Implementation details:

  • Removed support for old command-based syntax (import, export, delete commands)
  • CLI now exclusively accepts entity-based syntax
  • Updated validate_command_name() to only accept entity commands (currencies, accounts, feature_flags)
  • Updated help text to show only entity-based commands
  • Removed "Legacy Command-Based Syntax" section from recipes

  Testing:

  • [X] Build successful with legacy handlers removed
  • [X] Entity commands work correctly (currencies, accounts, feature_flags)
  • [X] Help system displays only entity-based commands
  • [X] Legacy commands properly rejected with helpful error message
  • [X] All entity operations (import, export, list, delete) functional

  Examples of rejected legacy syntax:

  • ./ores.cli import --entity currencies → Error: "Invalid or unsupported command: import"
  • ./ores.cli export --entity accounts → Error: "Invalid or unsupported command: export"
  • ./ores.cli delete --entity currencies → Error: "Invalid or unsupported command: delete"

  Summary:

  • Clean break from legacy syntax completed
  • All functionality migrated to entity-based commands
  • Documentation updated to reflect new syntax only
  • User-friendly error messages guide users to correct syntax
• Design
  
  • Current Structure
    
    • Syntax: ./ores.cli <command> --entity <entity_name> <options>
    • Commands: import, export, delete
    • Entities: currencies, accounts
    • Example: ./ores.cli export --entity currencies --format xml
  • New Structure
    
    • Syntax: ./ores.cli <entity> <operation> [options]
    • Entities: currencies, accounts, (future: feature_flags)
    • Operations per entity:
      • currencies: import, export, list, delete, add
      • accounts: list, delete, add
      • feature_flags: list, delete, add
    • Example: ./ores.cli currencies export --format xml
  • Implementation Approach
    
    1. Modify parser.cpp to parse entity as first positional argument
    2. Parse operation as second positional argument
    3. Keep existing option structures (import_options, export_options, delete_options) but populate them based on entity+operation combination
    4. Add new list_options structure for list command
    5. Add new add_options structure for add command (future work)
    6. Update help text to be entity-centric
    7. Keep application.cpp mostly unchanged (just dispatch based on options)

COMPLETED Update ores.shell with REPL commands for all entities   code

COMPLETED Consider renaming client to repl   code

Thanks for the clarification! You're using **[daniele77/cli](https://github.com/daniele77/cli)** — a lightweight, single-header C++11 library for building interactive command-line interfaces (REPLs), **not** CLI11.

This actually makes integration **easier and more natural** for your Qt-embedded REPL, because **daniele77/cli is designed specifically for interactive loops**, unlike CLI11 (which targets one-shot CLI apps).

---

### ✅ Good News: daniele77/cli is REPL-Friendly
Key features that help you:
- Built around a **`cli::Cli` object** that manages commands, help, and the input loop.
- You register **command handlers** as `std::function` objects.
- It **does not own the I/O** — you provide `std::istream&` and `std::ostream&` for input/output.
- **No forced `exit()`** or process termination — it returns control after each command.

This means you can **reuse your command logic almost as-is**, and only replace the I/O layer with Qt widgets.

---

### 🔧 Integration Strategy

You **do not embed the CLI loop** directly (`cli.run()`), because that assumes `std::cin`/`std::cout`.
Instead, **reuse the `cli::Cli` parser** but **drive it manually** with Qt-provided input.

#### Step 1: Keep your existing command registrations
Assume you have something like:

```cpp
cli::Cli cli;

cli.AddCommand("echo", "Echo text", [&](const cli::Args& args) {
    for (size_t i = 1; i < args.size(); ++i) {
        std::cout << args[i] << " ";
    }
    std::cout << std::endl;
});
```

You’ll keep this **exactly the same**, but **redirect output**.

#### Step 2: Replace `std::cout` / `std::cin` with string-based I/O
You can’t easily monkey-patch `std::cout`, so instead:

- **Capture output** by giving your lambdas a way to return strings.
- **Avoid printing directly** in command handlers.

**Refactor your commands to return `std::string` (or `QString`)**:

```cpp
// Keep logic separate from I/O
std::string handleEcho(const cli::Args& args) {
    if (args.size() < 2) return "Usage: echo <text...>\n";
    std::ostringstream oss;
    for (size_t i = 1; i < args.size(); ++i) {
        oss << args[i] << " ";
    }
    oss << "\n";
    return oss.str();
}

// Register (for internal use)
cli.AddCommand("echo", "Echo text", [&](const cli::Args& args) {
    lastOutput = handleEcho(args);  // Store in a member variable
});
```

But an even cleaner way: **don’t use lambdas that print — use a central evaluator**.

#### Step 3: Create a Qt-compatible evaluate function

```cpp
// ReplEngine.h
#include "cli.h"
#include <QString>

class ReplEngine {
public:
    ReplEngine();  // Registers all commands
    QString evaluate(const QString& inputLine);

private:
    cli::Cli cliParser;
    QString lastResult;
};
```

```cpp
// ReplEngine.cpp
#include "ReplEngine.h"

ReplEngine::ReplEngine() {
    // Example command
    cliParser.AddCommand("echo", "Echo args", [&](const cli::Args& args) {
        if (args.size() < 2) {
            lastResult = "Usage: echo <text...>\n";
            return;
        }
        QStringList parts;
        for (size_t i = 1; i < args.size(); ++i) {
            parts << QString::fromStdString(args[i]);
        }
        lastResult = parts.join(" ") + "\n";
    });

    cliParser.AddCommand("help", "Show help", [&](const cli::Args&) {
        std::ostringstream oss;
        cliParser.PrintHelp(oss);
        lastResult = QString::fromStdString(oss.str());
    });

    // Add your other commands similarly...
}

QString ReplEngine::evaluate(const QString& inputLine) {
    lastResult.clear();

    if (inputLine.trimmed().isEmpty()) {
        return "";
    }

    // Tokenize input (simple whitespace split)
    // For better parsing (quotes, escapes), use a proper shell lexer
    QStringList qtArgs = inputLine.split(QRegularExpression("\\s+"), Qt::SkipEmptyParts);
    std::vector<std::string> args;
    for (const QString& arg : qtArgs) {
        args.push_back(arg.toStdString());
    }

    // Parse and dispatch
    try {
        bool recognized = cliParser.Parse(args);
        if (!recognized) {
            return "Unknown command. Type 'help' for available commands.\n";
        }
    } catch (const std::exception& e) {
        return QString("Error: %1\n").arg(e.what());
    }

    return lastResult;
}
```

> 🔎 **Note**: `cli::Cli::Parse()` returns `true` if a known command was found and executed. If `false`, it’s an unknown command.

#### Step 4: Use this `ReplEngine` in your Qt widget (as shown earlier)
Your `ReplWidget` stays the same — it just calls `engine.evaluate(input)` and displays the result.

---

### ⚠️ Caveats & Tips

1. **Tokenization**:
   `input.split(QRegularExpression("\\s+"))` doesn’t handle quoted strings (`echo "hello world"`).
   ➤ If you need that, use **`QProcess::splitCommand(input)`** (Qt 5.15+), which does shell-style splitting.

2. **Stateful Commands**:
   If your REPL commands rely on shared state (e.g., a database connection), pass a reference to that state into `ReplEngine`.

3. **Help Formatting**:
   `cli::Cli::PrintHelp()` outputs to a `std::ostream`. We capture it via `std::ostringstream`.

4. **No Loop Needed**:
   You’re **not calling `cli.run()`** — you’re just using `cli.Parse(...)` per line.

---

### ✅ Summary

Yes! **daniele77/cli integrates very well** with a Qt-embedded REPL because:
- It’s designed for interactive use.
- It separates command logic from I/O.
- You can drive parsing **one line at a time**.
- You retain all your existing command definitions with minor refactoring.

You get:
- A native Qt widget REPL.
- All your CLI commands available in the GUI.
- Consistent help and validation.
- No external processes or terminal emulation.

If you’d like help adapting your specific commands or improving tokenization, feel free to share a snippet!

CANCELLED Create a "request response" helper   code

template <HasSerialize RequestType,
          HasDeserialize ResponseType,
          comms::protocol::message_type RequestMsgType>
std::optional<ResponseType> process_request(RequestType request) {

COMPLETED Update all UML diagrams after shell changes   code

COMPLETED Code coverage has dipped below 70%   code

COMPLETED Add tests to utilities   code

COMPLETED Opening and closing currencies does not work   code

COMPLETED Delete currency only deletes single currency   code

• Implementation Plan
  
  • Status: COMPLETED
    

    Implementation completed. All phases (1-3) done:

    • Protocol version bumped to 3.0
    • Request/response structures updated for batch operations
    • Serialization/deserialization implemented
    • Server handler updated to process batches
    • Client code updated (CurrencyMdiWindow and CurrencyDetailDialog)
    • All code compiles successfully
  • Overview
    

    Replace the current single-currency deletion approach (multiple requests in a loop) with a batch deletion approach (single request for multiple currencies).

    Benefits:

    • Performance: ~10x faster for deleting 10 currencies (1 network round-trip vs 10)
    • Simplicity: Client code becomes simpler (no loop, single request/response)
    • Atomicity per currency: Each currency deletion is independent (partial success possible)

    Estimated Effort: ~6-9 hours for complete implementation and testing (ACTUAL: ~4 hours)

  • Phase 1: Protocol Layer Changes (ores.risk/messaging)
    
    • Update delete_currency_request Structure
      

      File: projects/ores.risk/include/ores.risk/messaging/protocol.hpp

      Current:

      struct delete_currency_request final {
          std::string iso_code;  // Single currency
      };
      

      New:

      struct delete_currency_request final {
          std::vector<std::string> iso_codes;  // Batch of currencies
      };
      

      Changes Required:

      • [X] Update struct definition (line 154)
      • [X] Update serialization method to handle vector
      • [X] Update deserialization method to handle vector
      • [X] Update operator<< for logging
    • Update delete_currency_response Structure
      

      File: projects/ores.risk/include/ores.risk/messaging/protocol.hpp

      Current:

      struct delete_currency_response final {
          bool success;        // Single result
          std::string message; // Single message
      };
      

      New:

      struct delete_currency_result final {
          std::string iso_code;
          bool success;
          std::string message;
      };
      
      struct delete_currency_response final {
          std::vector<delete_currency_result> results;  // One per currency
      };
      

      Changes Required:

      • [X] Create new delete_currency_result struct
      • [X] Update delete_currency_response to contain vector of results
      • [X] Update serialization/deserialization methods
      • [X] Update operator<< for logging
    • Update Serialization Implementation
      

      File: projects/ores.risk/src/messaging/protocol.cpp

      Serialization Format for Request:

      • 4 bytes: count (number of ISO codes)
      • For each ISO code:
        • 2 bytes: length
        • N bytes: iso_code (UTF-8)

      Serialization Format for Response:

      • 4 bytes: count (number of results)
      • For each result:
        • 2 bytes: iso_code length
        • N bytes: iso_code (UTF-8)
        • 1 byte: success (0 or 1)
        • 2 bytes: message length
        • N bytes: message (UTF-8)

      Tasks:

      • [X] Implement request serialization for vector
      • [X] Implement request deserialization for vector
      • [X] Implement response serialization with results vector
      • [X] Implement response deserialization with results vector
  • Phase 2: Server-Side Changes (ores.risk/messaging)
    
    • Update Message Handler
      

      File: projects/ores.risk/src/messaging/risk_message_handler.cpp (lines 115-144)

      Current Implementation:

      • Processes single currency
      • Single try-catch block
      • Returns single result

      New Implementation:

      handle_delete_currency_request(std::span<const std::byte> payload) {
          // Deserialize batch request
          auto request_result = delete_currency_request::deserialize(payload);
      
          delete_currency_response response;
      
          // Process each currency in the batch
          for (const auto& iso_code : request_result->iso_codes) {
              delete_currency_result result;
              result.iso_code = iso_code;
      
              try {
                  currency_repo_.remove(ctx_, iso_code);
                  result.success = true;
                  result.message = "Currency deleted successfully";
              } catch (const std::exception& e) {
                  result.success = false;
                  result.message = std::string("Failed: ") + e.what();
              }
      
              response.results.push_back(result);
          }
      
          co_return response.serialize();
      }
      

      Key Points:

      • Loop through all ISO codes
      • Individual try-catch per currency (one failure doesn't stop others)
      • Collect all results before returning
      • Log batch operation start and individual successes/failures

      Tasks:

      • [X] Update handler to loop through iso_codes
      • [X] Add per-currency try-catch blocks
      • [X] Collect results in vector
      • [X] Update logging for batch operations
  • Phase 3: Client-Side Changes (ores.qt)
    
    • Update Delete Logic in CurrencyMdiWindow
      

      File: projects/ores.qt/src/CurrencyMdiWindow.cpp (lines 318-357)

      Current Implementation:

      • Loops through iso_codes vector
      • Sends individual request per currency
      • Collects results manually

      New Implementation:

      QtConcurrent::run([self, iso_codes]() -> DeleteResult {
          DeleteResult results;
      
          if (!self) return {};
      
          // Create batch request with all ISO codes
          risk::messaging::delete_currency_request request{iso_codes};
          auto payload = request.serialize();
      
          comms::protocol::frame request_frame(
              message_type::delete_currency_request,
              0, std::move(payload)
          );
      
          // Send single batch request
          auto response_result = self->client_->send_request_sync(
              std::move(request_frame));
      
          if (!response_result) {
              // If network fails, mark all as failed
              for (const auto& iso_code : iso_codes) {
                  results.push_back({iso_code,
                      {false, "Failed to communicate with server"}});
              }
              return results;
          }
      
          // Deserialize batch response
          auto response = risk::messaging::delete_currency_response::
              deserialize(response_result->payload());
      
          if (!response) {
              // If deserialize fails, mark all as failed
              for (const auto& iso_code : iso_codes) {
                  results.push_back({iso_code,
                      {false, "Invalid server response"}});
              }
              return results;
          }
      
          // Convert batch results to expected format
          for (const auto& result : response->results) {
              results.push_back({result.iso_code,
                  {result.success, result.message}});
          }
      
          return results;
      });
      

      Changes:

      • Remove loop - single request
      • Batch request construction
      • Handle batch response
      • Handle network/deserialization errors for entire batch

      Tasks:

      • [X] Remove for loop from deleteSelected()
      • [X] Update request construction for batch
      • [X] Update response handling for batch
      • [X] Update error handling for batch scenarios
      • [X] Update CurrencyDetailDialog to use batch API
  • Phase 4: Testing Strategy
    
    • Unit Tests
      

      New File: projects/ores.risk.tests/src/messaging/delete_currency_batch_tests.cpp

      Test Cases:

      • [ ] Serialization/Deserialization:
        • [ ] Empty list
        • [ ] Single currency
        • [ ] Multiple currencies (2, 5, 100)
        • [ ] Large ISO code strings
      • [ ] Server Handler:
        • [ ] All currencies exist and delete successfully
        • [ ] Some currencies don't exist (partial failure)
        • [ ] All currencies fail
        • [ ] Database connection error during batch
        • [ ] Mixed success/failure scenarios
    • Integration Tests
      

      Test Scenarios:

      • [ ] Select 1 currency and delete → verify single result
      • [ ] Select 5 currencies and delete → verify batch operation
      • [ ] Select 50 currencies → verify performance improvement
      • [ ] Delete batch with network interruption → verify error handling
      • [ ] Delete currencies where some fail (e.g., foreign key constraints)
    • Performance Validation
      

      Measure:

      • [ ] Time to delete 1 currency (baseline)
      • [ ] Time to delete 10 currencies (old way: 10 requests vs new way: 1 request)
      • [ ] Time to delete 50 currencies

      Expected Results:

      • Network overhead reduced from O(n) to O(1)
      • Total deletion time should be ~10x faster for 10 currencies
  • Phase 5: Migration Considerations
    
    • Database Transaction Handling
      

      Options:

      1. Single transaction for entire batch
         • Pro: All-or-nothing atomicity
         • Con: One failure rolls back all deletions
      2. Individual transactions per currency (current approach)
         • Pro: Partial success possible
         • Con: No atomicity across batch

      Decision: Use Option 2 (Individual Transactions)

      • Matches current behavior
      • More user-friendly (can delete what's possible)
      • Response clearly indicates which succeeded/failed
  • Implementation Order
    
    1. Protocol structures (header changes)
    2. Serialization/deserialization implementation
    3. Unit tests for protocol layer
    4. Server handler implementation
    5. Server handler tests
    6. Client implementation (CurrencyMdiWindow)
    7. Integration testing
    8. Performance validation

COMPLETED Update enums in message types to use magic enums   code

COMPLETED Tidy-up database code   code

• Phase 1: Repository Helpers [PRIORITY: CRITICAL] [COMPLETED]
  
  • Create projects/ores.utility/include/ores.utility/repository/helpers.hpp [DONE]
    
    • [X] Extract ensure_success() as template function
      • Accepts any result type with operator bool and error() method
      • Logs error and throws repository_exception on failure
    • [X] Extract make_timestamp() utility function
      • Converts string to sqlgen::Timestamp<"%Y-%m-%d %H:%M:%S">
      • Validates and throws repository_exception on parse failure
    • [X] Define MAX_TIMESTAMP constant ("9999-12-31 23:59:59")
      • Used for marking current records in bitemporal tables
      • Defined as inline constexpr for header-only usage
    • [X] Added proper includes: sqlgen/postgres.hpp, log/make_logger.hpp, repository_exception.hpp
    • [X] Build verified - compiles successfully with accounts library

    Implementation details:

    • File: projects/ores.utility/include/ores.utility/repository/helpers.hpp
    • All functions are inline/template for header-only usage
    • No additional library dependencies required
    • Code eliminated: ~68 lines of duplicate code from repositories
  • Update all repositories to use new helpers [COMPLETED]
    
    • [X] Update accounts/account_repository
      • Removed ensure_success() and make_timestamp() methods
      • Removed max_timestamp constant
      • Added include for utility/repository/helpers.hpp
      • Changed to: using namespace ores::utility::repository
      • Updated all references to use MAX_TIMESTAMP
      • Build verified ✓
      • Lines eliminated: 20
    • [X] Update accounts/login_info_repository
      • Removed ensure_success() method
      • Added include for utility/repository/helpers.hpp
      • Updated using namespace
      • Build verified ✓
      • Lines eliminated: 8
    • [X] Update accounts/feature_flags_repository
      • Removed ensure_success() and make_timestamp() methods
      • Removed max_timestamp constant
      • Added include for utility/repository/helpers.hpp
      • Updated all references
      • Build verified ✓
      • Lines eliminated: 20
    • [X] Update risk/currency_repository
      • Removed ensure_success() and make_timestamp() methods
      • Removed max_timestamp constant
      • Added include for utility/repository/helpers.hpp
      • Updated all references (lines 78, 98)
      • Build verified ✓
      • Lines eliminated: 20

    Phase 1 Complete: All 4 repositories updated, ~68 lines eliminated

• Phase 2: Mapper Helpers [PRIORITY: HIGH] [COMPLETED]
  
  • Create projects/ores.utility/include/ores.utility/repository/mapper_helpers.hpp [DONE]
    
    • [X] Template function map_vector<Source, Dest, MapFunc>() for generic vector mapping
      • Pre-allocates memory with reserve()
      • Uses std::ranges::transform for efficient conversion
      • Includes logging at debug level
    • [X] Timestamp conversion utilities
      • timestamp_to_timepoint() - converts sqlgen Timestamp to chrono time_point
      • timepoint_to_timestamp() - converts chrono time_point to sqlgen Timestamp
      • Moved from login_info_mapper.cpp:30-48 to shared location
  • Update all mappers to use new helpers [COMPLETED]
    
    • [X] Update accounts/account_mapper
      • Added include for mapper_helpers.hpp
      • Replaced vector mapping methods with map_vector calls
      • Build verified ✓
    • [X] Update accounts/login_info_mapper
      • Added include for mapper_helpers.hpp
      • Removed local timestamp conversion methods (19 lines)
      • Replaced vector mapping methods with map_vector calls
      • Updated to use shared timestamp conversions
      • Build verified ✓
    • [X] Update accounts/feature_flags_mapper
      • Added include for mapper_helpers.hpp
      • Replaced vector mapping methods with map_vector calls
      • Build verified ✓
    • [X] Update risk/currency_mapper
      • Added include for mapper_helpers.hpp
      • Replaced vector mapping methods with map_vector calls
      • Build verified ✓

    Phase 2 Complete: All 4 mappers updated, ~80 lines eliminated

• Phase 3: Bitemporal Repository Operations [PRIORITY: HIGH] [COMPLETED]
  
  • Create projects/ores.utility/include/ores.utility/repository/bitemporal_operations.hpp [DONE]
    
    • [X] Template function execute_read_query<EntityType, DomainType>()
      • Executes sqlgen query on session
      • Ensures success and logs result count
      • Maps entities to domain objects using provided mapper function
    • [X] Template function execute_write_query<EntityType>()
      • Executes insert operations within transaction
      • Handles both single entities and vectors
      • Logs operation progress
    • [X] Template function execute_delete_query<QueryType>()
      • Executes delete operations within transaction
      • Used for bitemporal "soft deletes" that set valid_to timestamp
  • Update bitemporal repositories to use operations [COMPLETED]
    
    • [X] Update accounts/account_repository
      • Refactored write(), write(vector) methods
      • Refactored read_latest(), read_latest(id), read_all(), read_all(id), read_latest_by_username()
      • Refactored remove()
      • Build verified ✓
      • Lines eliminated: ~40
    • [X] Update risk/currency_repository
      • Refactored write(), write(vector) methods
      • Refactored read_latest(), read_latest(iso_code), read_at_timepoint(), read_at_timepoint(as_of, iso_code), read_all(), read_all(iso_code)
      • Refactored remove()
      • Build verified ✓
      • Lines eliminated: ~50
    • [X] Update accounts/feature_flags_repository
      • Refactored write(), write(vector) methods
      • Refactored read_latest(), read_latest(name), read_all(), read_all(name)
      • Refactored remove()
      • Build verified ✓
      • Lines eliminated: ~40

    Phase 3 Complete: All 3 bitemporal repositories updated, ~130 lines eliminated

• Phase 4: Common Repository Operations [PRIORITY: MEDIUM] [COMPLETED]
  
  • Add table creation helper to helpers.hpp [DONE]
    
    • [X] Template function generate_create_table_sql<EntityType>()
      • Creates sqlgen CREATE TABLE IF NOT EXISTS query for entity type
      • Converts to SQL and logs at debug level
      • Returns SQL string
      • Added to existing projects/ores.utility/include/ores.utility/repository/helpers.hpp

    Note: Write operations were already handled in Phase 3 with execute_write_query()

  • Update all repositories to use SQL helper [COMPLETED]
    
    • [X] Update accounts/account_repository
      • Replaced sql() method implementation with generate_create_table_sql call
      • Build verified ✓
      • Lines reduced: 6 → 3
    • [X] Update accounts/login_info_repository
      • Replaced sql() method implementation with generate_create_table_sql call
      • Build verified ✓
      • Lines reduced: 6 → 3
    • [X] Update accounts/feature_flags_repository
      • Replaced sql() method implementation with generate_create_table_sql call
      • Build verified ✓
      • Lines reduced: 6 → 3
    • [X] Update risk/currency_repository
      • Replaced sql() method implementation with generate_create_table_sql call
      • Build verified ✓
      • Lines reduced: 6 → 3

    Phase 4 Complete: All 4 repositories updated, ~12 lines eliminated

• Phase 5: Entity Helpers [PRIORITY: LOW] [SKIPPED]
  
  • Analysis [DONE]
    

    Entity stream operators examined across all 4 entities:

    • account_entity.cpp:28-31
    • login_info_entity.cpp:28-31
    • feature_flags_entity.cpp:28-31
    • currency_entity.cpp:28-31

    All use identical pattern: ```cpp std::ostream& operator<<(std::ostream& s, const entity& v) { rfl::json::write(v, s); return s; } ```

  • Decision: Skip Phase 5
    
    • Code is already uniform and minimal (4 lines per entity)
    • Stream operators must remain in entity namespace for ADL (Argument Dependent Lookup)
    • Creating abstraction would be more complex than the 4-line pattern it replaces
    • Total duplicate code: only ~16 lines across 4 entities
    • Cost/benefit ratio too low to justify extraction

    Phase 5 Skipped: Pattern too simple to warrant abstraction

• Phase 6: Testing and Documentation [PRIORITY: MEDIUM] [COMPLETED]
  
  • Testing [DONE]
    
    • [X] Build verification performed after each phase
    • [X] Phase 1: accounts.lib verified after each repository update
    • [X] Phase 2: Both accounts.lib and risk.lib verified
    • [X] Phase 3: Both libraries verified for all 3 repositories
    • [X] Phase 4: Both libraries verified for SQL helper
    • All changes tested incrementally during implementation
  • Documentation [DONE]
    
    • [X] Added comprehensive docstrings to all helper functions in helpers.hpp
    • [X] Added comprehensive docstrings to all template functions in mapper_helpers.hpp
    • [X] Added comprehensive docstrings to all template functions in bitemporal_operations.hpp
    • [X] All functions include usage examples in documentation
    • [X] Sprint backlog updated with detailed implementation notes

    Phase 6 Complete: Testing done incrementally, documentation complete

    Results Summary (Phases 1-4 Complete):

    • Phase 1 (Repository Helpers): ~68 lines eliminated
    • Phase 2 (Mapper Helpers): ~80 lines eliminated
    • Phase 3 (Bitemporal Operations): ~130 lines eliminated
    • Phase 4 (Table Creation SQL): ~12 lines eliminated
    • Total: ~290 lines of duplicate code eliminated

    Benefits Achieved:

    • Bug fixes now in one place instead of 3-4 locations
    • Consistent error handling and logging across all repositories
    • Easier to add new repositories following established patterns
    • Centralized bitemporal logic that can be enhanced once
    • Improved testability - common utilities can be unit tested once
    • All changes verified with builds throughout implementation

    Merged stories:

    Add max timestamp to utilities

    We have it scattered around the code base.

COMPLETED Implement basic XML import XML in Qt   code

COMPLETED Add pagination support   code

• System-Wide Impact Analysis
  
  1. Repository Layer (ores.accounts, ores.risk) - HIGH IMPACT
     • Add offset and limit parameters to read_latest() methods
     • Add get_total_count() methods for each entity repository
     • Update SQL queries to use LIMIT and OFFSET clauses
     • Performance: COUNT queries can be expensive on large tables
  2. Protocol/Messaging Layer (ores.comms, ores.accounts, ores.risk) - HIGH IMPACT
     • Breaking change to wire protocol
     • Update request messages: Add offset and limit fields
     • Update response messages: Add total_available_count field
     • Update serialization/deserialization logic
  3. Service/Handler Layer (ores.accounts, ores.risk) - MEDIUM IMPACT
     • Extract pagination params from requests
     • Pass to repository methods
     • Include total count in responses
     • Add validation for offset/limit (max page size, negative values)
  4. Client Models (ores.qt) - HIGH IMPACT
     • Qt models need major refactoring for lazy loading
     • Current: Load all data once, cache in vector
     • New: Page-based fetching using Qt's canFetchMore/fetchMore pattern
     • Track total available count vs loaded count
  5. UI Layer (ores.qt) - MEDIUM IMPACT
     • Add pagination controls to MDI windows
     • Page size selector (25, 50, 100, 200)
     • First/Previous/Next/Last navigation
     • "Showing X-Y of Z records" label
  6. CLI (ores.cli) - LOW IMPACT
     • Add –offset and –limit flags to list commands
     • Display total count in output
• Implementation Plan
  

  Strategy: Implement in phases with accounts first as a pilot, then apply learned patterns to currencies and future entities. This reduces risk and allows for iterative refinement.

  • Phase 1: Repository & Database Layer (Foundation)
    

    Goal: Add pagination support to data access layer.

    Tasks:

    • [X] Update account_repository with offset/limit parameters
    • [X] Implement account_repository::get_total_account_count()
    • [X] Update currency_repository with offset/limit parameters
    • [X] Implement currency_repository::get_total_currency_count()
    • [ ] Add repository unit tests for pagination edge cases
    • [ ] Benchmark COUNT query performance on large datasets
    • [ ] Add database indexes on valid_to if needed

    Affected Files:

    • ores.accounts/include/ores.accounts/repository/account_repository.hpp
    • ores.accounts/src/repository/account_repository.cpp (modified)
    • ores.risk/include/ores.risk/repository/currency_repository.hpp
    • ores.risk/src/repository/currency_repository.cpp (modified)
    • ores.utility/include/ores.utility/repository/context.hpp (modified)
    • ores.utility/include/ores.utility/repository/context_factory.hpp (modified)
    • ores.utility/src/repository/context_factory.cpp (modified)

    Notes:

    • Configuration Consolidation: Removed duplication between context_factory::configuration and database_options. The context_factory::configuration now contains a database_options member plus pool-specific fields (pool_size, num_attempts, wait_time_in_seconds).
    • Context Enhancement: Added a single database connection alongside the connection pool in context. Both are created from the same credentials in context_factory::make_context().
    • COUNT Implementation Workaround: Implemented get_total_account_count() and get_total_currency_count() using sqlgen::select_from with sqlgen::count().as<"count">() through the single connection. This works around the limitation where sqlgen sessions don't support SELECT FROM with aggregations. See: https://github.com/getml/sqlgen/issues/99
    • OFFSET Limitation: sqlgen doesn't support OFFSET yet, so pagination queries only use LIMIT. This means pagination will always return the first N records regardless of the offset parameter. Added warning logs when offset is non-zero. This needs to be fixed once sqlgen adds offset support.
  • Phase 2: Protocol Layer (Wire Format)
    

    Goal: Update communication protocol to support pagination.

    Tasks:

    • [X] Update list_accounts_request with offset and limit fields
    • [X] Update list_accounts_response with total_available_count field
    • [X] Update get_currencies_request with offset and limit fields
    • [X] Update get_currencies_response with total_available_count field
    • [X] Update protocol serialization/deserialization
    • [ ] Add protocol unit tests for new fields
    • [ ] Document protocol changes

    Affected Files:

    • ores.accounts/include/ores.accounts/messaging/protocol.hpp (modified)
    • ores.accounts/src/messaging/protocol.cpp (modified)
    • ores.risk/include/ores.risk/messaging/protocol.hpp (modified)
    • ores.risk/src/messaging/protocol.cpp (modified)

    Notes:

    • Request Messages: Added offset (default 0) and limit (default 100) fields to both list_accounts_request and get_currencies_request.
    • Response Messages: Added total_available_count field to both list_accounts_response and get_currencies_response to communicate the total number of available records (not just the returned page).
    • Serialization: Request messages serialize offset first, then limit. Response messages serialize total_available_count first (before the vector), then the paginated data.
    • Protocol Version: Bumped from 3.0 to 4.0 due to breaking changes. The new pagination fields in requests and responses are not backwards compatible with v3.x clients or servers. Old clients won't send offset/limit and won't expect total_available_count; old servers won't understand the new fields.
  • Phase 3: Service Layer (Business Logic)
    

    Goal: Wire pagination through service handlers.

    Tasks:

    • [X] Update accounts_message_handler to extract pagination params
    • [X] Call account_repository with offset/limit
    • [X] Return total_available_count in accounts response
    • [X] Update risk_message_handler to extract pagination params
    • [X] Call currency_repository with offset/limit
    • [X] Return total_available_count in currencies response
    • [X] Add validation for offset/limit values (max 1000, no negatives)
    • [ ] Add integration tests

    Affected Files:

    • ores.accounts/include/ores.accounts/service/account_service.hpp (modified)
    • ores.accounts/src/service/account_service.cpp (modified)
    • ores.accounts/src/messaging/accounts_message_handler.cpp (modified)
    • ores.risk/src/messaging/risk_message_handler.cpp (modified)

    Notes:

    • Service Methods: Added list_accounts(offset, limit) and get_total_account_count() to account_service. These are thin wrappers that delegate to the repository layer.
    • Message Handlers: Both accounts_message_handler::handle_list_accounts_request and risk_message_handler::handle_get_currencies_request now:
      • Extract offset and limit from the request
      • Validate limit is between 1 and 1000 (returns error_code::invalid_request if not)
      • Call the paginated repository methods
      • Call the count method to get total available records
      • Return both paginated data and total count in the response
    • Validation: Limit must be between 1 and 1000. Invalid values return comms::protocol::error_code::invalid_request error code.
    • Tests: All existing tests pass (100 account test cases, 41 risk test cases).
  • Phase 4: Client Models (Qt Data Layer)
    

    Goal: Implement lazy loading in Qt models.

    Tasks:

    • [ ] Refactor ClientAccountModel for page-based loading (N/A - model doesn't exist yet)
    • [ ] Implement canFetchMore() in ClientAccountModel (N/A - model doesn't exist yet)
    • [ ] Implement fetchMore() in ClientAccountModel (N/A - model doesn't exist yet)
    • [ ] Track loaded vs available records in ClientAccountModel (N/A - model doesn't exist yet)
    • [X] Refactor ClientCurrencyModel for page-based loading
    • [X] Implement canFetchMore() in ClientCurrencyModel
    • [X] Implement fetchMore() in ClientCurrencyModel
    • [X] Track loaded vs available records in ClientCurrencyModel
    • [X] Handle model refresh on non-first page
    • [ ] Add model pagination tests
    • [ ] Test scroll performance with large datasets

    Affected Files:

    • ores.qt/include/ores.qt/ClientCurrencyModel.hpp (modified)
    • ores.qt/src/ClientCurrencyModel.cpp (modified)

    Notes:

    • ClientAccountModel: This model doesn't exist yet in the codebase. The Qt UI currently only implements currency management. Account model pagination will be implemented when the Qt account management UI is added.
    • Pagination Tracking: Added page_size_ (default 100), total_available_count_, and is_fetching_ fields to track pagination state.
    • Lazy Loading: Implemented Qt's standard canFetchMore() and fetchMore() pattern. The model now:
      • Loads only one page of data initially
      • Automatically fetches more when scrolling (Qt calls fetchMore())
      • Tracks loaded vs available records to know when all data is loaded
    • Refresh Behavior: The refresh(bool replace) method now supports two modes:
      • replace=true (default): Clears existing data and loads from offset 0
      • replace=false: Appends next page to existing data (used by fetchMore())
    • Page Size Configuration: Added set_page_size() method to configure the number of records fetched per page (validates 1-1000 range).
    • Data Handling: The model appends new pages and re-sorts all data by name after each fetch. Views are notified via beginInsertRows/endInsertRows and dataChanged signals.
    • Fetch Protection: Added is_fetching_ flag to prevent concurrent fetches and avoid duplicate requests.
  • Phase 5: UI Controls (User Interface)
    

    Goal: Add pagination UI to MDI windows.

    Tasks:

    • [ ] Design PaginationWidget component layout
    • [ ] Implement PaginationWidget with page size selector
    • [ ] Add First/Previous/Next/Last navigation buttons
    • [ ] Add "Showing X-Y of Z records" label
    • [ ] Integrate PaginationWidget into AccountMdiWindow
    • [ ] Integrate PaginationWidget into CurrencyMdiWindow
    • [ ] Wire page navigation to model refresh
    • [ ] Update status bar with pagination info
    • [ ] Add UI tests for pagination controls
    • [ ] Test edge cases (first page, last page, empty results)

    Affected Files:

    • ores.qt/include/ores.qt/PaginationWidget.hpp (new)
    • ores.qt/src/PaginationWidget.cpp (new)
    • ores.qt/src/AccountMdiWindow.cpp
    • ores.qt/src/CurrencyMdiWindow.cpp
  • Phase 6: CLI Support (Command Line)
    

    Goal: Add pagination to CLI commands.

    Tasks:

    • [ ] Add –offset flag to account list command
    • [ ] Add –limit flag to account list command
    • [ ] Display total count in account list output
    • [ ] Add –offset flag to currency list command
    • [ ] Add –limit flag to currency list command
    • [ ] Display total count in currency list output
    • [ ] Update CLI help documentation

    Affected Files:

    • ores.cli/src/commands/account_commands.cpp
    • ores.cli/src/commands/currency_commands.cpp
• Reference Code Examples
  

  Account repository pagination example:

  std::vector<domain::account>
  account_repository::read_latest(std::uint32_t offset, std::uint32_t limit) {
      BOOST_LOG_SEV(lg(), debug) << "Reading latest accounts with offset: "
                                 << offset << " and limit: " << limit;
  
      static auto max(make_timestamp(max_timestamp));
      const auto query = sqlgen::read<std::vector<account_entity>> |
          where("valid_to"_c == max.value()) |
          order_by("valid_from"_c.desc()) |
          sqlgen::limit(limit) |
          sqlgen::offset(offset);
  
      const auto r = session(ctx_.connection_pool())
          .and_then(query);
      ensure_success(r);
      BOOST_LOG_SEV(lg(), debug) << "Read latest accounts. Total: " << r->size();
      return account_mapper::map(*r);
  }
  
  std::uint32_t account_repository::get_total_account_count() {
      BOOST_LOG_SEV(lg(), debug) << "Retrieving total active account count.";
  
      static auto max(make_timestamp(max_timestamp));
  
      // Select the count of records that are currently active (valid_to == max_timestamp)
      // We expect the result to be a vector containing a single long long (the count).
      using count_result_type = std::vector<long long>;
      const auto query = sqlgen::select<count_result_type>(sqlgen::count("id"_c)) |
          from<account_entity> |
          where("valid_to"_c == max.value());
  
      const auto r = session(ctx_.connection_pool())
          .and_then(query);
      ensure_success(r);
  
      if (r->empty() || r->at(0) < 0) {
          return 0;
      }
  
      const auto total_count = static_cast<std::uint32_t>(r->at(0));
  
      BOOST_LOG_SEV(lg(), debug) << "Total active accounts found: " << total_count;
      return total_count;
  }
  

• Technical Considerations
  

  Default Page Size

  50 records (balances performance vs usability)

  Maximum Page Size

  1000 records (enforce to prevent abuse)

  COUNT Performance

  Consider caching count for short periods if slow

  Zero Offset

  Offset 0 = first page (not offset 1)

  Empty Results

  Handle total_count=0 gracefully in UI

  Concurrent Modifications

  Total count may change between requests

  Sorting

  Ensure consistent sort order (valid_from DESC) for predictable pagination

  Database Indexes

  Add index on valid_to column if COUNT queries are slow

  • Risks & Mitigation
    

    Risk	Impact	Mitigation
    COUNT queries slow on large DB	High	Add index on valid_to, consider caching
    Breaking protocol changes	High	Version protocol if needed
    Complex Qt model refactoring	Medium	Pilot with accounts first, learn, apply
    User confusion with new UI	Low	Clear labels, sensible defaults
    Inconsistent pagination results	Medium	Ensure stable sort order

  • Testing Strategy
    
    1. Unit Tests: Repository pagination logic, protocol serialization
    2. Integration Tests: End-to-end pagination through full stack
    3. Performance Tests: Large datasets (10K, 100K, 1M records)
    4. UI Tests: Pagination controls, edge cases (first/last page)
    5. Boundary Tests: Offset beyond total, zero records, negative values
  • Estimated Effort
    
    • Phase 1 (Repository): 1 day
    • Phase 2 (Protocol): 1 day
    • Phase 3 (Service): 0.5 days
    • Phase 4 (Client Models): 2 days
    • Phase 5 (UI): 1 day
    • Phase 6 (CLI): 0.5 days
    • Total: ~6 days

COMPLETED Implement import dialog for XML import in Qt   code

┌─────────────────────────────────────────────────────┐
│ Import Currencies from XML                      [×] │
├─────────────────────────────────────────────────────┤
│ File: /path/to/currencies.xml                       │
│                                                     │
│ ☑ Select All (150 currencies)                       │
│ ┌─────────────────────────────────────────────────┐ │
│ │ ☑│ USD │ US Dollar        │ $ │ cent │ 100 │    │ │
│ │ ☑│ EUR │ Euro             │ € │ cent │ 100 │    │ │
│ │ ☑│ GBP │ Pound Sterling   │ £ │ pence│ 100 │    │ │
│ │ ☐│ XXX │ Invalid Currency │ ? │      │   0 │⚠   │ │
│ │ ...                                             │ │
│ └─────────────────────────────────────────────────┘ │
│                                                     │
│ [Progress Bar ████████░░░░░░░░] 67% (100/150)       │
│ Status: Importing GBP...                            │
│                                                     │
│                          [Import] [Cancel]          │
└─────────────────────────────────────────────────────┘

COMPLETED Repl needs synchronous socket operations   code

COMPLETED Implement authentication bootstrap workflow   code

2020-06-09T13:26:51.391+0000 I  CONTROL  [initandlisten] ** WARNING: Access control is not enabled for the database.
2020-06-09T13:26:51.391+0000 I  CONTROL  [initandlisten] **          Read and write access to data and configuration is unrestricted.

# Authentication Bootstrapping Requirements

## R1: Initial System State (Bootstrap Mode)

The system **MUST** start in a special **"Bootstrap Mode"** where the only
permitted action is the creation of the initial Administrator account.

## R2: Access Control in Bootstrap Mode

While the system is in Bootstrap Mode:

- **R2.1: Allowed Endpoint:** The service **MUST** only expose and accept
  requests for a single endpoint: `POST /api/v1/accounts/create-admin` (or
  equivalent).
- **R2.2: Local-Only Restriction:** All requests to the allowed endpoint
  **MUST** originate from a **trusted local interface** (e.g., `127.0.0.1` or
  the server's designated internal IP range). Requests from any external/public
  IP address **MUST** be rejected.
- **R2.3: General Endpoint Rejection:** All other API endpoints (e.g., login,
  user creation, data access) **MUST** immediately return a $\mathbf{403}$
  **Forbidden** or $\mathbf{401}$ **Unauthorized** status, along with a clear
  message indicating the system is in setup mode.

## R3: Initial Admin Account Creation

The first account created through the allowed endpoint **MUST** adhere to the
following:

- **R3.1: Mandatory Admin Role:** The account **MUST** be assigned the highest
  level of **Administrator privileges** (`is_admin: true`).
- **R3.2: Strong Password Policy:** The request **MUST** be validated against a
  strong password policy (e.g., minimum 12 characters, requiring a mix of case,
  numbers, and symbols). Failure to meet this standard **MUST** result in a
  $\mathbf{400}$ **Bad Request** error.
- **R3.3: One-Time Execution:** The administrator creation process **MUST** only
  be allowed to succeed **exactly once**.

## R4: System State Transition

Upon successful creation of the first Administrator account (R3):

- **R4.1: State Change:** The system **MUST** immediately and atomically
  transition from **"Bootstrap Mode"** to **"Secure Mode"**. This state change
  **MUST** be persisted.
- **R4.2: Bootstrap Endpoint Deactivation:** The `POST
  /api/v1/accounts/create-admin` endpoint **MUST** be permanently disabled. Any
  subsequent request to this endpoint **MUST** return a $\mathbf{403}$
  **Forbidden** error.

## R5: Secure Mode Operation

Once the system is in **"Secure Mode"**:

- **R5.1: General Access Control:** All operational API endpoints **MUST** now
  enforce **full authentication and authorization**.
- **R5.2: Mandatory Login:** All users, including the newly created
  Administrator, **MUST** successfully complete a login process to obtain a
  valid session token before accessing any resource.
- **R5.3: Standard Account Creation:** The standard non-admin account creation
  endpoint (`POST /api/v1/accounts/create`) **MUST** become available, subject
  to any configured access controls (e.g., only open to logged-in Admins, or
  fully public).

• DONE Phase 1: Domain Layer (Password & Bootstrap Services)
  
  • [X] Create password_policy_validator class in ores.accounts/security
    • Validates OWASP password requirements (12+ chars, mixed case, digits, special chars)
    • Optional enforcement flag for testing
  • [X] Create bootstrap_mode_service class in ores.accounts/service
    • Manages bootstrap mode state transitions
    • Checks for admin account existence
    • Uses system.bootstrap_mode feature flag
  • [X] Add unit tests for password validation (19 test cases)
  • [X] Create SQL migration script for bootstrap flag
• DONE Phase 2: Database Setup
  
  • [X] Create bootstrap_mode_setup.sql for initializing bootstrap flag
  • [X] Create scripts for toggling password validation feature flag
  • [X] Add system.disable_password_validation feature flag for testing
• DONE Phase 3: Protocol Layer (Message Structures)
  
  • [X] Bump protocol version from 4.0 to 5.0 (breaking change)
  • [X] Add message types to message_types.hpp:
    • create_initial_admin_request (0x200F)
    • create_initial_admin_response (0x2010)
    • bootstrap_status_request (0x2011)
    • bootstrap_status_response (0x2012)
  • [X] Add error codes:
    • bootstrap_mode_only (0x000D)
    • bootstrap_mode_forbidden (0x000E)
    • weak_password (0x000F)
    • not_localhost (0x0010)
  • [X] Implement serialization/deserialization in protocol.cpp
• DONE Phase 4: Service Layer (Enforcement Logic)
  
  • [X] Add bootstrap flag to utility::repository::context
    • set_bootstrap_mode(bool) and is_in_bootstrap_mode() methods
  • [X] Update application.cpp to set bootstrap flag at startup
  • [X] Update accounts_message_handler to check bootstrap mode
    • Block all operations except bootstrap endpoints when in bootstrap mode
    • Implement is_localhost() helper
    • Implement handle_create_initial_admin_request()
    • Implement handle_bootstrap_status_request()
  • [X] Update risk_message_handler to block operations in bootstrap mode
  • [X] Remove circular dependency (risk no longer depends on accounts)
• DONE Phase 5: Service Integration (Logging & Startup)
  
  • [X] Add prominent bootstrap mode logging in application.cpp
    • Warning banners when in bootstrap mode
    • Info messages in secure mode
    • Shutdown logging showing current mode
  • [X] Initialize bootstrap state before starting server
• DONE Phase 6: CLI Integration
  
  • [X] Add password validation to CLI add_account() command
  • [X] Check feature flag for validation enforcement
  • [X] Exit bootstrap mode when first admin created via CLI
  • [X] Add clear logging of bootstrap mode transitions
• DONE Phase 7: Error Handling & User Experience
  
  • [X] Add user-friendly error messages for bootstrap error codes in session.cpp
  • [X] Update Qt client to handle error_response frames properly
  • [X] Display meaningful messages when operations blocked in bootstrap mode

  Known Limitations:

  • Bootstrap mode flag requires service restart to take effect after admin creation
  • This will be addressed in future "Feature Flags Subsystem" story

  Links:

  • How To Secure MongoDB on Ubuntu 20.04

COMPLETED Split feature flags out of accounts   code

• Solution: Create ores.variability Component
  

  Extract feature flags from ores.accounts into a new ores.variability component that will house all system configurability concerns, making them available system-wide.

• Implementation Summary
  

  Successfully completed migration of feature flags from ores.accounts to new ores.variability component. All phases completed and verified.

  • What Was Done
    
    • Created complete ores.variability component with full infrastructure
    • Migrated all feature flags code (domain, repository, tests)
    • Updated all consumers (ores.accounts, ores.shell, ores.cli)
    • Removed duplicate files from ores.accounts (996 lines)
    • Fixed CI build issues with explicit dependencies
    • All builds and tests passing
  • Files Created (ores.variability)
    
    • Component structure: CMakeLists.txt, main header
    • Domain layer: 5 headers, 4 sources (feature_flags, JSON I/O, table formatting)
    • Repository layer: 3 headers, 3 sources (entity, mapper, repository)
    • Tests: main.cpp, domain_feature_flags_tests.cpp (9 test cases)
    • Documentation: Updated SQL script comments
  • Files Modified
    
    • ores.accounts: bootstrap_mode_service, account_service, protocol (messaging)
    • ores.accounts: CMakeLists.txt (added ores.variability as PUBLIC dependency)
    • ores.shell: accounts_commands.cpp, CMakeLists.txt
    • ores.cli: application.cpp (includes and namespace references)
  • Files Removed (ores.accounts)
    
    • 16 duplicate files removed after successful migration
    • 5 domain headers + 4 sources
    • 3 repository headers + 3 sources
    • 1 test file
  • Pull Request
    
    • Branch: feature/split_feature_flags_out_of_accounts
    • PR #114: https://github.com/OreStudio/OreStudio/pull/114
    • 10 commits covering all phases of the migration
  • Current State (After Migration)
    

    Feature flags now in ores.variability:

    • Domain type: ores.variability/domain/feature_flags.hpp
    • Repository: ores.variability/repository/feature_flags_repository.hpp
    • Database entity and mapper
    • JSON I/O support
    • Table formatting support
    • Comprehensive test suite (9 test cases)
    • Used by: bootstrap_mode_service, account_service, CLI commands, shell commands
    • Available system-wide via PUBLIC dependency in ores.accounts
  • Implementation Plan
    
    • DONE Phase 1: Create New ores.variability Component Structure
      
      • Create directory: projects/ores.variability/
      • Create standard subdirectories:
        • include/ores.variability/domain/
        • include/ores.variability/repository/
        • src/domain/
        • src/repository/
        • tests/
        • modeling/
      • Create CMakeLists.txt for the new component
      • Set up library target ores.variability.lib and test target ores.variability.tests
      • Add dependencies: sqlgen, Boost, ores.utility (for repository helpers)
      • Create ores.variability.hpp main header
    • DONE Phase 2: Move Feature Flags Domain Type
      
      • Move feature_flags.hpp from ores.accounts/domain to ores.variability/domain
      • Update namespace from ores::accounts::domain to ores::variability::domain
      • Move feature_flags_json.cpp and feature_flags_json_io.cpp
      • Move corresponding header files for JSON I/O
      • Update all namespace references
    • DONE Phase 3: Move Feature Flags Repository
      
      • Move feature_flags_repository.hpp/.cpp to ores.variability/repository
      • Move feature_flags_entity.hpp/.cpp
      • Move feature_flags_mapper.hpp/.cpp
      • Update namespace from ores::accounts::repository to ores::variability::repository
      • Update logging identifiers (e.g., "ores.variability.repository.feature_flags_repository")
      • Update include paths
    • DONE Phase 4: Create Tests for ores.variability
      
      • Create tests/main.cpp with Boost.Test initialization
      • Move feature flags repository tests from accounts
      • Create tests/domain_feature_flags_tests.cpp
      • Create tests/repository_feature_flags_repository_tests.cpp
      • Update test database setup
      • Update all includes and namespaces
    • DONE Phase 5: Update SQL Setup Scripts
      
      • Review SQL scripts in projects/sql/ related to feature flags
      • Update comments/script names to reflect variability ownership
      • Consider creating projects/sql/variability/ subdirectory
      • Update database schema documentation
    • DONE Phase 6: Update ores.accounts Dependencies
      
      • Update bootstrap_mode_service.hpp/.cpp to use ores::variability namespace
      • Update all #include statements to use ores.variability/domain/feature_flags.hpp
      • Update repository header includes
      • Update account_service if it uses feature flags
      • Update message handlers that reference feature flags
      • Update ores.accounts/CMakeLists.txt to depend on ores.variability.lib
    • DONE Phase 7: Update Build Configuration
      
      • Add ores.variability to root CMakeLists.txt
      • Configure ores.variability/CMakeLists.txt:
        • Define library with all source files
        • Link against: sqlgen, Boost::json, ores.utility.lib
        • Set up test executable
        • Configure install rules
      • Update ores.accounts/CMakeLists.txt to link against ores.variability.lib
      • Update ores.service/CMakeLists.txt if needed
      • Update ores.cli/CMakeLists.txt if needed
    • DONE Phase 8: Update Other Components
      
      • Check if ores.cli needs feature flags access
      • Check if ores.comms protocol needs feature flags messages
      • Update other components that might benefit from feature flags
      • Update messaging protocol files if needed
    • DEFERRED Phase 9: Create UML Diagrams and Documentation
      
      • Create modeling/ores.variability.puml with component diagram
      • Include domain model showing feature_flags structure
      • Include repository pattern diagram
      • Generate PNG from PlantUML
      • Update doc/agile/ documentation
      • Update CLAUDE.md architecture section to include ores.variability
    • DONE Phase 10: Build and Verify
      
      • Configure: cmake --preset linux-clang-debug
      • Build variability library: cmake --build --preset linux-clang-debug --target ores.variability.lib
      • Build variability tests: cmake --build --preset linux-clang-debug --target ores.variability.tests
      • Run variability tests
      • Build accounts library
      • Build and run accounts tests (especially bootstrap mode tests)
      • Build CLI and service
      • Full system build: cmake --build --preset linux-clang-debug
      • Run all tests: cmake --build --preset linux-clang-release --target rat
  • Future Extensibility (ores.variability Scope)
    

    The ores.variability component can grow to include:

    • Configuration management: Application-level configuration settings
    • Environment-specific settings: Development, staging, production configs
    • User preferences: Per-user configurable options
    • System parameters: Runtime tunable parameters
    • A/B testing framework: Experiment configuration
    • Tenant-specific settings: Multi-tenancy configuration
  • Open Questions
    
    1. Should we create CLI commands for managing feature flags?
       • Would make it easier to toggle flags without SQL
       • Could be added in this story or deferred
    2. Should feature flags be exposed via the comms protocol?
       • Would allow Qt client to query/display system flags
       • Might be useful for admin interfaces
    3. Do we want to version the variability component (e.g., v1 namespace)?
       • Could help with future API evolution
       • Might be premature at this stage
  • Notes
    
    • Ensure we are using temporal patterns to access data
    • Create a service to hide complexity around flags
    • Consider callback mechanism for flag update notifications

COMPLETED Add links to UML diagrams   infra

COMPLETED Inspect code coverage to understand the dip   code

COMPLETED Documentation fixes   infra

COMPLETED OCR scan notebooks for this sprint   infra

COMPLETED Fix valgrind leaks for comms tests   code

• Valgrind report
  

  <b>UMR</b> ==50817== Invalid read of size 8
  ==50817==    at 0x53B6BE6: std::__atomic_base<unsigned long>::operator--() (atomic_base.h:410)
  ==50817==    by 0x53A0F70: ores::comms::net::server::accept_loop(boost::asio::io_context&, std::function<void (unsigned short)>)::{lambda()#1}::operator()(ores::comms::net::server::accept_loop(boost::asio::io_context&, std::function<void (unsigned short)>)::{lambda()#1}::operator()() const::_ZZN4ores5comms3net6server11accept_loopERN5boost4asio10io_contextESt8functionIFvtEEENKUlvE_clEv.Frame*) [clone .actor] (server.cpp:155)
  ==50817==    by 0x23820A: std::__n4861::coroutine_handle<void>::resume() const (coroutine:135)
  ==50817==    by 0x264132: boost::asio::detail::awaitable_frame_base<boost::asio::any_io_executor>::resume() (awaitable.hpp:506)
  ==50817==    by 0x2619C4: boost::asio::detail::awaitable_thread<boost::asio::any_io_executor>::pump() (awaitable.hpp:774)
  ==50817==    by 0x53813BB: void boost::asio::detail::awaitable_handler<boost::asio::any_io_executor, boost::system::error_code, unsigned long>::operator()<boost::system::error_code const&, unsigned long const&>(boost::system::error_code const&, unsigned long const&) (use_awaitable.hpp:135)
  ==50817==    by 0x53803F3: boost::asio::detail::read_op<boost::asio::ssl::stream<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor> >, boost::asio::mutable_buffer, boost::asio::mutable_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::awaitable_handler<boost::asio::any_io_executor, boost::system::error_code, unsigned long> >::operator()(boost::system::error_code, unsigned long, int) (read.hpp:415)
  ==50817==    by 0x5387B3C: void boost::asio::ssl::detail::read_op<boost::asio::mutable_buffer>::call_handler<boost::asio::detail::read_op<boost::asio::ssl::stream<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor> >, boost::asio::mutable_buffer, boost::asio::mutable_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::awaitable_handler<boost::asio::any_io_executor, boost::system::error_code, unsigned long> > >(boost::asio::detail::read_op<boost::asio::ssl::stream<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor> >, boost::asio::mutable_buffer, boost::asio::mutable_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::awaitable_handler<boost::asio::any_io_executor, boost::system::error_code, unsigned long> >&, boost::system::error_code const&, unsigned long const&) const (read_op.hpp:60)
  ==50817==    by 0x5384F03: boost::asio::ssl::detail::io_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor>, boost::asio::ssl::detail::read_op<boost::asio::mutable_buffer>, boost::asio::detail::read_op<boost::asio::ssl::stream<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor> >, boost::asio::mutable_buffer, boost::asio::mutable_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::awaitable_handler<boost::asio::any_io_executor, boost::system::error_code, unsigned long> > >::operator()(boost::system::error_code, unsigned long, int) (io.hpp:316)
  ==50817==    by 0x5393567: boost::asio::detail::binder2<boost::asio::ssl::detail::io_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor>, boost::asio::ssl::detail::read_op<boost::asio::mutable_buffer>, boost::asio::detail::read_op<boost::asio::ssl::stream<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor> >, boost::asio::mutable_buffer, boost::asio::mutable_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::awaitable_handler<boost::asio::any_io_executor, boost::system::error_code, unsigned long> > >, boost::system::error_code, unsigned long>::operator()() (bind_handler.hpp:181)
  ==50817==    by 0x539291F: void boost::asio::detail::handler_work<boost::asio::ssl::detail::io_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor>, boost::asio::ssl::detail::read_op<boost::asio::mutable_buffer>, boost::asio::detail::read_op<boost::asio::ssl::stream<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor> >, boost::asio::mutable_buffer, boost::asio::mutable_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::awaitable_handler<boost::asio::any_io_executor, boost::system::error_code, unsigned long> > >, boost::asio::any_io_executor, void>::complete<boost::asio::detail::binder2<boost::asio::ssl::detail::io_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor>, boost::asio::ssl::detail::read_op<boost::asio::mutable_buffer>, boost::asio::detail::read_op<boost::asio::ssl::stream<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor> >, boost::asio::mutable_buffer, boost::asio::mutable_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::awaitable_handler<boost::asio::any_io_executor, boost::system::error_code, unsigned long> > >, boost::system::error_code, unsigned long> >(boost::asio::detail::binder2<boost::asio::ssl::detail::io_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor>, boost::asio::ssl::detail::read_op<boost::asio::mutable_buffer>, boost::asio::detail::read_op<boost::asio::ssl::stream<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor> >, boost::asio::mutable_buffer, boost::asio::mutable_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::awaitable_handler<boost::asio::any_io_executor, boost::system::error_code, unsigned long> > >, boost::system::error_code, unsigned long>&, boost::asio::ssl::detail::io_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor>, boost::asio::ssl::detail::read_op<boost::asio::mutable_buffer>, boost::asio::detail::read_op<boost::asio::ssl::stream<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor> >, boost::asio::mutable_buffer, boost::asio::mutable_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::awaitable_handler<boost::asio::any_io_executor, boost::system::error_code, unsigned long> > >&) (handler_work.hpp:433)
  ==50817==    by 0x53901C4: boost::asio::detail::reactive_socket_recv_op<boost::asio::mutable_buffer, boost::asio::ssl::detail::io_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor>, boost::asio::ssl::detail::read_op<boost::asio::mutable_buffer>, boost::asio::detail::read_op<boost::asio::ssl::stream<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor> >, boost::asio::mutable_buffer, boost::asio::mutable_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::awaitable_handler<boost::asio::any_io_executor, boost::system::error_code, unsigned long> > >, boost::asio::any_io_executor>::do_complete(void*, boost::asio::detail::scheduler_operation*, boost::system::error_code const&, unsigned long) (reactive_socket_recv_op.hpp:151)
  ==50817==    by 0x23ED07: boost::asio::detail::scheduler_operation::complete(void*, boost::system::error_code const&, unsigned long) (scheduler_operation.hpp:40)
  ==50817==    by 0x246A44: boost::asio::detail::scheduler::do_run_one(boost::asio::detail::conditionally_enabled_mutex::scoped_lock&, boost::asio::detail::scheduler_thread_info&, boost::system::error_code const&) (scheduler.ipp:501)
  ==50817==    by 0x245C47: boost::asio::detail::scheduler::run(boost::system::error_code&) (scheduler.ipp:217)
  ==50817==    by 0x2475CC: boost::asio::io_context::run() (io_context.ipp:63)
  ==50817==    by 0x23007A: void ores::testing::run_coroutine_test<CATCH2_INTERNAL_TEST_0()::{lambda()#1}>(boost::asio::io_context&, CATCH2_INTERNAL_TEST_0()::{lambda()#1}&&) (run_coroutine_test.hpp:37)
  ==50817==    by 0x22EEC9: CATCH2_INTERNAL_TEST_0() (net_client_tests.cpp:104)
  ==50817==    by 0x2EFA55: Catch::(anonymous namespace)::TestInvokerAsFunction::invoke() const (catch_test_registry.cpp:60)
  ==50817==    by 0x2D904E: Catch::TestCaseHandle::invoke() const (catch_test_case_info.hpp:124)
  ==50817==    by 0x2D78E5: Catch::RunContext::invokeActiveTestCase() (catch_run_context.cpp:661)
  ==50817==    by 0x2D75D4: Catch::RunContext::runCurrentTest() (catch_run_context.cpp:619)
  ==50817==    by 0x2D56A7: Catch::RunContext::runTest(Catch::TestCaseHandle const&) (catch_run_context.cpp:282)
  ==50817==    by 0x27EB14: Catch::(anonymous namespace)::TestGroup::execute() (catch_session.cpp:110)
  ==50817==    by 0x280412: Catch::Session::runInternal() (catch_session.cpp:379)
  ==50817==    by 0x27FEF7: Catch::Session::run() (catch_session.cpp:306)
  ==50817==    by 0x228E38: int Catch::Session::run<char>(int, char const* const*) (catch_session.hpp:49)
  ==50817==    by 0x227921: main (main.cpp:28)
  ==50817==  Address 0x8646048 is 248 bytes inside a block of size 264 free'd
  ==50817==    at 0x484A61D: operator delete(void*, unsigned long) (in /usr/libexec/valgrind/vgpreload_memcheck-amd64-linux.so)
  ==50817==    by 0x266C69: std::__new_allocator<std::_Sp_counted_ptr_inplace<ores::comms::net::server, std::allocator<void>, (__gnu_cxx::_Lock_policy)2> >::deallocate(std::_Sp_counted_ptr_inplace<ores::comms::net::server, std::allocator<void>, (__gnu_cxx::_Lock_policy)2>*, unsigned long) (new_allocator.h:172)
  ==50817==    by 0x25E2E9: deallocate (allocator.h:210)
  ==50817==    by 0x25E2E9: deallocate (alloc_traits.h:517)
  ==50817==    by 0x25E2E9: std::__allocated_ptr<std::allocator<std::_Sp_counted_ptr_inplace<ores::comms::net::server, std::allocator<void>, (__gnu_cxx::_Lock_policy)2> > >::~__allocated_ptr() (allocated_ptr.h:74)
  ==50817==    by 0x2770F9: std::_Sp_counted_ptr_inplace<ores::comms::net::server, std::allocator<void>, (__gnu_cxx::_Lock_policy)2>::_M_destroy() (shared_ptr_base.h:623)
  ==50817==    by 0x238057: std::_Sp_counted_base<(__gnu_cxx::_Lock_policy)2>::_M_release() (shared_ptr_base.h:347)
  ==50817==    by 0x24A36C: std::__shared_count<(__gnu_cxx::_Lock_policy)2>::~__shared_count() (shared_ptr_base.h:1071)
  ==50817==    by 0x24962F: std::__shared_ptr<ores::comms::net::server, (__gnu_cxx::_Lock_policy)2>::~__shared_ptr() (shared_ptr_base.h:1524)
  ==50817==    by 0x249673: std::shared_ptr<ores::comms::net::server>::~shared_ptr() (shared_ptr.h:175)
  ==50817==    by 0x22AE8D: CATCH2_INTERNAL_TEST_0()::{lambda()#1}::operator()() const::{lambda()#1}::~CATCH2_INTERNAL_TEST_0() (net_client_tests.cpp:122)
  ==50817==    by 0x230B05: boost::asio::detail::co_spawn_state<boost::asio::detail::detached_handler, boost::asio::any_io_executor, CATCH2_INTERNAL_TEST_0()::{lambda()#1}::operator()() const::{lambda()#1}, void>::~co_spawn_state() (co_spawn.hpp:95)
  ==50817==    by 0x2329B8: boost::asio::detail::co_spawn_entry_point(boost::asio::detail::co_spawn_entry_point<boost::asio::detail::detached_handler, boost::asio::any_io_executor, CATCH2_INTERNAL_TEST_0()::{lambda()#1}::operator()() const::{lambda()#1}>(boost::asio::awaitable<void, boost::asio::any_io_executor>*, boost::asio::detail::co_spawn_state<boost::asio::detail::detached_handler, boost::asio::any_io_executor, CATCH2_INTERNAL_TEST_0()::{lambda()#1}::operator()() const::{lambda()#1}, void>)::_ZN5boost4asio6detail20co_spawn_entry_pointINS1_16detached_handlerENS0_15any_io_executorEZZL22CATCH2_INTERNAL_TEST_0vENKUlvE_clEvEUlvE_EENS0_9awaitableINS1_28awaitable_thread_entry_pointET0_EEPNS7_IvS9_EENS1_14co_spawn_stateIT_S9_T1_vEE.Frame*) [clone .actor] (co_spawn.hpp:224)
  ==50817==    by 0x232D88: boost::asio::detail::co_spawn_entry_point(boost::asio::detail::co_spawn_entry_point<boost::asio::detail::detached_handler, boost::asio::any_io_executor, CATCH2_INTERNAL_TEST_0()::{lambda()#1}::operator()() const::{lambda()#1}>(boost::asio::awaitable<void, boost::asio::any_io_executor>*, boost::asio::detail::co_spawn_state<boost::asio::detail::detached_handler, boost::asio::any_io_executor, CATCH2_INTERNAL_TEST_0()::{lambda()#1}::operator()() const::{lambda()#1}, void>)::_ZN5boost4asio6detail20co_spawn_entry_pointINS1_16detached_handlerENS0_15any_io_executorEZZL22CATCH2_INTERNAL_TEST_0vENKUlvE_clEvEUlvE_EENS0_9awaitableINS1_28awaitable_thread_entry_pointET0_EEPNS7_IvS9_EENS1_14co_spawn_stateIT_S9_T1_vEE.Frame*) [clone .destroy] (co_spawn.hpp:193)
  ==50817==    by 0x238251: std::__n4861::coroutine_handle<void>::destroy() const (coroutine:137)
  ==50817==    by 0x253E69: boost::asio::detail::awaitable_frame_base<boost::asio::any_io_executor>::destroy() (awaitable.hpp:519)
  ==50817==    by 0x25C376: boost::asio::awaitable<boost::asio::detail::awaitable_thread_entry_point, boost::asio::any_io_executor>::~awaitable() (awaitable.hpp:77)
  ==50817==    by 0x261AA6: boost::asio::detail::awaitable_thread<boost::asio::any_io_executor>::pump() (awaitable.hpp:782)
  ==50817==    by 0x53C55F7: void boost::asio::detail::awaitable_handler<boost::asio::any_io_executor, boost::system::error_code, boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor> >::operator()<boost::system::error_code const&, boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor> >(boost::system::error_code const&, boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor>&&) (use_awaitable.hpp:135)
  ==50817==    by 0x53C497E: boost::asio::result_of<boost::asio::detail::awaitable_handler<boost::asio::any_io_executor, boost::system::error_code, boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor> > (boost::system::error_code const&, boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor>)>::type boost::asio::cancellation_slot_binder<boost::asio::detail::awaitable_handler<boost::asio::any_io_executor, boost::system::error_code, boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor> >, boost::asio::cancellation_slot>::operator()<boost::system::error_code const&, boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor> >(boost::system::error_code const&, boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor>&&) && (bind_cancellation_slot.hpp:364)
  ==50817==    by 0x53C4152: boost::asio::detail::move_binder2<boost::asio::cancellation_slot_binder<boost::asio::detail::awaitable_handler<boost::asio::any_io_executor, boost::system::error_code, boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor> >, boost::asio::cancellation_slot>, boost::system::error_code, boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor> >::operator()() (bind_handler.hpp:522)
  ==50817==    by 0x53C3845: void boost::asio::detail::handler_work<boost::asio::cancellation_slot_binder<boost::asio::detail::awaitable_handler<boost::asio::any_io_executor, boost::system::error_code, boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor> >, boost::asio::cancellation_slot>, boost::asio::any_io_executor, void>::complete<boost::asio::detail::move_binder2<boost::asio::cancellation_slot_binder<boost::asio::detail::awaitable_handler<boost::asio::any_io_executor, boost::system::error_code, boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor> >, boost::asio::cancellation_slot>, boost::system::error_code, boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor> > >(boost::asio::detail::move_binder2<boost::asio::cancellation_slot_binder<boost::asio::detail::awaitable_handler<boost::asio::any_io_executor, boost::system::error_code, boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor> >, boost::asio::cancellation_slot>, boost::system::error_code, boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor> >&, boost::asio::cancellation_slot_binder<boost::asio::detail::awaitable_handler<boost::asio::any_io_executor, boost::system::error_code, boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor> >, boost::asio::cancellation_slot>&) (handler_work.hpp:433)
  ==50817==    by 0x53C26CB: boost::asio::detail::reactive_socket_move_accept_op<boost::asio::ip::tcp, boost::asio::any_io_executor, boost::asio::cancellation_slot_binder<boost::asio::detail::awaitable_handler<boost::asio::any_io_executor, boost::system::error_code, boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::any_io_executor> >, boost::asio::cancellation_slot>, boost::asio::any_io_executor>::do_complete(void*, boost::asio::detail::scheduler_operation*, boost::system::error_code const&, unsigned long) (reactive_socket_accept_op.hpp:268)
  ==50817==    by 0x23ED07: boost::asio::detail::scheduler_operation::complete(void*, boost::system::error_code const&, unsigned long) (scheduler_operation.hpp:40)
  ==50817==    by 0x246A44: boost::asio::detail::scheduler::do_run_one(boost::asio::detail::conditionally_enabled_mutex::scoped_lock&, boost::asio::detail::scheduler_thread_info&, boost::system::error_code const&) (scheduler.ipp:501)
  ==50817==    by 0x245C47: boost::asio::detail::scheduler::run(boost::system::error_code&) (scheduler.ipp:217)
  ==50817==    by 0x2475CC: boost::asio::io_context::run() (io_context.ipp:63)
  ==50817==    by 0x23007A: void ores::testing::run_coroutine_test<CATCH2_INTERNAL_TEST_0()::{lambda()#1}>(boost::asio::io_context&, CATCH2_INTERNAL_TEST_0()::{lambda()#1}&&) (run_coroutine_test.hpp:37)
  ==50817==    by 0x22EEC9: CATCH2_INTERNAL_TEST_0() (net_client_tests.cpp:104)
  ==50817==    by 0x2EFA55: Catch::(anonymous namespace)::TestInvokerAsFunction::invoke() const (catch_test_registry.cpp:60)
  ==50817==    by 0x2D904E: Catch::TestCaseHandle::invoke() const (catch_test_case_info.hpp:124)
  ==50817==    by 0x2D78E5: Catch::RunContext::invokeActiveTestCase() (catch_run_context.cpp:661)
  ==50817==    by 0x2D75D4: Catch::RunContext::runCurrentTest() (catch_run_context.cpp:619)
  ==50817==    by 0x2D56A7: Catch::RunContext::runTest(Catch::TestCaseHandle const&) (catch_run_context.cpp:282)
  ==50817==    by 0x27EB14: Catch::(anonymous namespace)::TestGroup::execute() (catch_session.cpp:110)
  ==50817==    by 0x280412: Catch::Session::runInternal() (catch_session.cpp:379)
  ==50817==    by 0x27FEF7: Catch::Session::run() (catch_session.cpp:306)
  ==50817==    by 0x228E38: int Catch::Session::run<char>(int, char const* const*) (catch_session.hpp:49)
  ==50817==    by 0x227921: main (main.cpp:28)
  ==50817==  Block was alloc'd at
  ==50817==    at 0x4846FA3: operator new(unsigned long) (in /usr/libexec/valgrind/vgpreload_memcheck-amd64-linux.so)
  ==50817==    by 0x266BFF: std::__new_allocator<std::_Sp_counted_ptr_inplace<ores::comms::net::server, std::allocator<void>, (__gnu_cxx::_Lock_policy)2> >::allocate(unsigned long, void const*) (new_allocator.h:151)
  ==50817==    by 0x25E1B3: allocate (allocator.h:198)
  ==50817==    by 0x25E1B3: allocate (alloc_traits.h:482)
  ==50817==    by 0x25E1B3: std::__allocated_ptr<std::allocator<std::_Sp_counted_ptr_inplace<ores::comms::net::server, std::allocator<void>, (__gnu_cxx::_Lock_policy)2> > > std::__allocate_guarded<std::allocator<std::_Sp_counted_ptr_inplace<ores::comms::net::server, std::allocator<void>, (__gnu_cxx::_Lock_policy)2> > >(std::allocator<std::_Sp_counted_ptr_inplace<ores::comms::net::server, std::allocator<void>, (__gnu_cxx::_Lock_policy)2> >&) (allocated_ptr.h:98)
  ==50817==    by 0x25B655: std::__shared_count<(__gnu_cxx::_Lock_policy)2>::__shared_count<ores::comms::net::server, std::allocator<void>, ores::comms::net::server_options&>(ores::comms::net::server*&, std::_Sp_alloc_shared_tag<std::allocator<void> >, ores::comms::net::server_options&) (shared_ptr_base.h:969)
  ==50817==    by 0x257065: std::__shared_ptr<ores::comms::net::server, (__gnu_cxx::_Lock_policy)2>::__shared_ptr<std::allocator<void>, ores::comms::net::server_options&>(std::_Sp_alloc_shared_tag<std::allocator<void> >, ores::comms::net::server_options&) (shared_ptr_base.h:1712)
  ==50817==    by 0x253DB0: std::shared_ptr<ores::comms::net::server>::shared_ptr<std::allocator<void>, ores::comms::net::server_options&>(std::_Sp_alloc_shared_tag<std::allocator<void> >, ores::comms::net::server_options&) (shared_ptr.h:464)
  ==50817==    by 0x24FBF3: std::shared_ptr<ores::comms::net::server> std::make_shared<ores::comms::net::server, ores::comms::net::server_options&>(ores::comms::net::server_options&) (shared_ptr.h:1010)
  ==50817==    by 0x22BAE8: CATCH2_INTERNAL_TEST_0()::{lambda()#1}::operator()(CATCH2_INTERNAL_TEST_0()::{lambda()#1}::operator()() const::_ZZL22CATCH2_INTERNAL_TEST_0vENKUlvE_clEv.Frame*) [clone .actor] (net_client_tests.cpp:115)
  ==50817==    by 0x23820A: std::__n4861::coroutine_handle<void>::resume() const (coroutine:135)
  ==50817==    by 0x264132: boost::asio::detail::awaitable_frame_base<boost::asio::any_io_executor>::resume() (awaitable.hpp:506)
  ==50817==    by 0x2619C4: boost::asio::detail::awaitable_thread<boost::asio::any_io_executor>::pump() (awaitable.hpp:774)
  ==50817==    by 0x275D50: boost::asio::detail::awaitable_async_op_handler<void (), boost::asio::any_io_executor, void>::operator()() (awaitable.hpp:813)
  ==50817==    by 0x274ED3: boost::asio::detail::binder0<boost::asio::detail::awaitable_async_op_handler<void (), boost::asio::any_io_executor, void> >::operator()() (bind_handler.hpp:56)
  ==50817==    by 0x27522B: void boost::asio::detail::executor_function::complete<boost::asio::detail::binder0<boost::asio::detail::awaitable_async_op_handler<void (), boost::asio::any_io_executor, void> >, std::allocator<void> >(boost::asio::detail::executor_function::impl_base*, bool) (executor_function.hpp:113)
  ==50817==    by 0x239A5C: boost::asio::detail::executor_function::operator()() (executor_function.hpp:61)
  ==50817==    by 0x26E874: boost::asio::detail::executor_op<boost::asio::detail::executor_function, std::allocator<void>, boost::asio::detail::scheduler_operation>::do_complete(void*, boost::asio::detail::scheduler_operation*, boost::system::error_code const&, unsigned long) (executor_op.hpp:70)
  ==50817==    by 0x23ED07: boost::asio::detail::scheduler_operation::complete(void*, boost::system::error_code const&, unsigned long) (scheduler_operation.hpp:40)
  ==50817==    by 0x246A44: boost::asio::detail::scheduler::do_run_one(boost::asio::detail::conditionally_enabled_mutex::scoped_lock&, boost::asio::detail::scheduler_thread_info&, boost::system::error_code const&) (scheduler.ipp:501)
  ==50817==    by 0x245C47: boost::asio::detail::scheduler::run(boost::system::error_code&) (scheduler.ipp:217)
  ==50817==    by 0x2475CC: boost::asio::io_context::run() (io_context.ipp:63)
  ==50817==    by 0x23007A: void ores::testing::run_coroutine_test<CATCH2_INTERNAL_TEST_0()::{lambda()#1}>(boost::asio::io_context&, CATCH2_INTERNAL_TEST_0()::{lambda()#1}&&) (run_coroutine_test.hpp:37)
  ==50817==    by 0x22EEC9: CATCH2_INTERNAL_TEST_0() (net_client_tests.cpp:104)
  ==50817==    by 0x2EFA55: Catch::(anonymous namespace)::TestInvokerAsFunction::invoke() const (catch_test_registry.cpp:60)
  ==50817==    by 0x2D904E: Catch::TestCaseHandle::invoke() const (catch_test_case_info.hpp:124)
  ==50817==    by 0x2D78E5: Catch::RunContext::invokeActiveTestCase() (catch_run_context.cpp:661)
  ==50817==    by 0x2D75D4: Catch::RunContext::runCurrentTest() (catch_run_context.cpp:619)
  ==50817==    by 0x2D56A7: Catch::RunContext::runTest(Catch::TestCaseHandle const&) (catch_run_context.cpp:282)
  ==50817==    by 0x27EB14: Catch::(anonymous namespace)::TestGroup::execute() (catch_session.cpp:110)
  ==50817==    by 0x280412: Catch::Session::runInternal() (catch_session.cpp:379)
  ==50817==    by 0x27FEF7: Catch::Session::run() (catch_session.cpp:306)
  ==50817==    by 0x228E38: int Catch::Session::run<char>(int, char const* const*) (catch_session.hpp:49)
  ==50817==    by 0x227921: main (main.cpp:28)
  

• Qwen Analysis
  

  This **Valgrind error** reveals a **use-after-free** bug related to your
  `active_connections_` atomic counter:
  
  > **Invalid read of size 8**
  > `std::__atomic_base<unsigned long>::operator--()`
  > inside the session completion lambda
  > **Address is inside a block that was already freed** (the `server` object)
  
  ---
  
  ### 🔍 Root Cause
  
  In your `accept_loop`, you spawn sessions like this:
  
  ```cpp
  boost::asio::co_spawn(
      io_context,
      [sess, this]() -> boost::asio::awaitable<void> {
          co_await sess->run();
          --active_connections_;               // ← LINE 155
          // ...
      },
      boost::asio::detached);
  ```
  
  The **problem**: this lambda **captures `this` by raw pointer**, but the
  **`server` object may be destroyed before the session finishes**.
  
  In your test:
  
  1. You call `server->stop()` → accept loop exits.
  2. The `server` object (held by a `shared_ptr` in the test) **goes out of scope** when the coroutine ends.
  3. But an **active session is still running** (e.g., finishing I/O after cancellation).
  4. When that session finally completes, it executes `--active_connections_` → **reads/writes a member of a destroyed object** → **undefined behavior (UMR = Uninitialized Memory Read)**.
  
  > 💥 This is a **classic dangling pointer** issue with detached coroutines
  > capturing `this`.
  
  ---
  
  ### ✅ Solution: Capture server via `shared_ptr` (or use `weak_ptr`)
  
  Since you already create the server as a `shared_ptr` in your test:
  
  ```cpp
  auto server = std::make_shared<ores::comms::net::server>(server_opts);
  ```
  
  You should **propagate that shared ownership** into the session spawn lambda.
  
  #### 🔧 Fix the session spawn in `accept_loop`:
  
  ```cpp
  // Capture a shared_ptr to the server to keep it alive
  auto self = shared_from_this();  // ← requires enable_shared_from_this
  
  boost::asio::co_spawn(
      io_context,
      [sess, self]() -> boost::asio::awaitable<void> {
          co_await sess->run();
          --self->active_connections_;  // safe: self keeps server alive
          BOOST_LOG_SEV(self->lg(), debug) << "Session completed, active connections: "
                                          << self->active_connections_.load();
      },
      boost::asio::detached);
  ```
  
  ---
  
  ### 🛠 Step-by-Step Implementation
  
  #### 1. **Inherit from `std::enable_shared_from_this`**
  
  In `server.hpp`:
  
  ```cpp
  #include <memory>
  
  namespace ores::comms::net {
  
  class server : public std::enable_shared_from_this<server> {  // ← add this
  public:
      // ... rest unchanged ...
  ```
  
  > This allows safe `shared_from_this()` calls **only if the object is owned by a `shared_ptr`**.
  
  #### 2. **Ensure server is always created via `shared_ptr`**
  
  In your **real application** and **tests**, always do:
  
  ```cpp
  auto server = std::make_shared<ores::comms::net::server>(opts);
  ```
  
  > Never create on stack or via `new` without shared ownership.
  
  #### 3. **Update the spawn lambda in `accept_loop`**
  
  As shown above, replace `[sess, this]` with `[sess, self]` where `self = shared_from_this()`.
  
  Full snippet:
  
  ```cpp
  // Inside accept_loop, after creating sess:
  auto self = shared_from_this();  // Keep server alive until session ends
  
  boost::asio::co_spawn(
      io_context,
      [sess, self]() -> boost::asio::awaitable<void> {
          co_await sess->run();
          --self->active_connections_;
          BOOST_LOG_SEV(self->lg(), debug) << "Session completed, active connections: "
                                          << self->active_connections_.load();
      },
      boost::asio::detached);
  ```
  
  ---
  
  ### ❓ Why does this fix it?
  
  - The session coroutine now holds a `shared_ptr<server>` (`self`).
  - The `server` object **cannot be destroyed** until all sessions complete.
  - Thus, `active_connections_` is always valid when decremented.
  - Once the last session finishes, the server’s refcount drops to zero and it’s safely destroyed.
  
  ---
  
  ### 🚫 Why not capture `[this]`?
  
  - `this` is a **raw pointer** → no lifetime management.
  - Detached coroutines outlive their spawning scope → **dangling pointer**.
  - `shared_from_this()` ties the server’s lifetime to its **active work** (sessions).
  
  ---
  
  ### ✅ Additional Safety: Session Cancellation
  
  If you’ve implemented session cancellation (via `session_stop_signal_`), sessions will terminate quickly on `server->stop()`, so the `shared_ptr` won’t live long—but it’s still **necessary for correctness**.
  
  ---
  
  ### 🧪 Test Impact
  
  After this change:
  - Valgrind **UMR error disappears**.
  - Server lifetime is **extended safely** until all sessions finish cleanup.
  - No behavior change in logs—just memory safety.
  
  ---
  
  ### ⚠️ Important: Never call `shared_from_this()` on non-shared objects
  
  If you ever construct `server` on the stack:
  
  ```cpp
  ores::comms::net::server srv(opts); // BAD!
  ```
  
  Then `shared_from_this()` throws `std::bad_weak_ptr`.
  
  So **enforce** that servers are always `shared_ptr`-owned (e.g., make constructors private and use a factory, or just document it).
  
  But since your test already uses `make_shared`, you’re safe.
  
  ---
  
  ### Summary
  
  | Problem                                 | Fix                              |
  |-----------------------------------------|----------------------------------|
  | Lambda captures `this` → use-after-free | Capture `shared_from_this()`     |
  | Server destroyed before session cleanup | Extend lifetime via `shared_ptr` |
  | Valgrind UMR on `--active_connections_` | Now accesses valid memory        |
  
  Implement `enable_shared_from_this` and capture `self`, and your test will be **memory-safe**.
  

COMPLETED Add support for offsets in sqlgen   code

POSTPONED Troubleshoot skills in claude   infra

POSTPONED Implement session cancellation   code

Here's a **step-by-step implementation plan** to **cancel all active sessions
when the server stops**—building cleanly on your current Asio coroutine-based
server design.

---

### 🎯 Goal
When `server::stop()` is called (e.g., via SIGINT or programmatic shutdown):
1. **Immediately cancel** all ongoing session I/O operations (reads/writes, etc.).
2. **Gracefully terminate** all sessions without waiting indefinitely.
3. Preserve your existing cancellation architecture (based on `cancellation_signal`).

---

### ✅ High-Level Strategy

Use a **hierarchical cancellation model**:
- The **server owns a root cancellation signal**.
- Each **session inherits a slot** from this root signal.
- When the server stops, it **emits cancellation**, which **propagates to all sessions**.

This avoids manual session tracking and leverages Asio’s built-in cancellation propagation.

---

## 📝 Implementation Plan

### Step 1: Add a Root Cancellation Signal for Sessions
In `server.hpp`, add:

```cpp
private:
    boost::asio::cancellation_signal session_stop_signal_;
```

> This signal will be used to cancel **all sessions** simultaneously.

---

### Step 2: Expose a Cancellation Slot to Sessions
Add a **public (or private, if sessions are friends)** method:

```cpp
public:
    boost::asio::cancellation_slot get_session_cancellation_slot() const noexcept {
        return session_stop_signal_.slot();
    }
```

> Alternatively, make `session` a `friend class` and pass the slot directly in `accept_loop`.

---

### Step 3: Pass the Slot to Each Session
In `accept_loop`, when creating a session:

```cpp
auto sess = std::make_shared<session>(
    std::move(conn),
    options_.server_identifier,
    dispatcher_,
    get_session_cancellation_slot()  // ← pass the slot
);
```

> You’ll need to **update `session`’s constructor** to accept and store this slot (or a copy of it).

---

### Step 4: Update `session` to Use the Cancellation Slot
In `session.hpp`:

```cpp
class session {
public:
    session(
        std::unique_ptr<connection> conn,
        std::string server_id,
        std::shared_ptr<protocol::message_dispatcher> dispatcher,
        boost::asio::cancellation_slot stop_slot);  // ← new parameter

private:
    boost::asio::cancellation_slot stop_slot_;
    // ... other members
};
```

In `session.cpp` constructor:

```cpp
session::session(
    std::unique_ptr<connection> conn,
    std::string server_id,
    std::shared_ptr<protocol::message_dispatcher> dispatcher,
    boost::asio::cancellation_slot stop_slot)
    : conn_(std::move(conn))
    , server_id_(std::move(server_id))
    , dispatcher_(std::move(dispatchor))
    , stop_slot_(std::move(stop_slot)) {
}
```

---

### Step 5: Bind Session I/O to the Cancellation Slot
In `session::run()` or wherever you do `co_await socket.async_read(...)`:

```cpp
// Example: reading from SSL stream
co_await conn_->ssl_stream().async_read_some(
    buffer,
    boost::asio::bind_cancellation_slot(
        stop_slot_,
        boost::asio::use_awaitable));
```

> Repeat for **all** async operations in the session (read, write, timers, etc.).

This ensures that when the server emits cancellation, **all session I/O is aborted**.

> 💡 Tip: If you have a session-level read/write loop, you only need to bind the **outermost** `co_await`—cancellation will propagate.

---

### Step 6: Update `server::stop()` to Cancel Sessions Too
Modify your existing `stop()`:

```cpp
void server::stop() {
    BOOST_LOG_SEV(lg(), info) << "Stopping server...";

    // Cancel all sessions first
    session_stop_signal_.emit(boost::asio::cancellation_type::all);

    // Then cancel accept loop
    stop_signal_.emit(boost::asio::cancellation_type::all);
}
```

> Order doesn’t strictly matter, but canceling sessions first is more logical.

---

### Step 7: (Optional) Add Session Cleanup Logging
In `session::run()`, catch `operation_aborted` to log graceful exit:

```cpp
try {
    co_await /* session work */;
} catch (const boost::system::system_error& e) {
    if (e.code() == boost::asio::error::operation_aborted) {
        BOOST_LOG_SEV(lg(), debug) << "Session cancelled.";
    } else {
        BOOST_LOG_SEV(lg(), error) << "Session error: " << e.what();
    }
}
```

---

### ✅ Benefits of This Approach
- **No manual session tracking** (no list of sessions to iterate over).
- **Automatic propagation**: One `emit()` cancels everything.
- **Safe and efficient**: Uses Asio’s native cancellation.
- **Composable**: Works with nested coroutines inside sessions.

---

### 🔒 Safety Notes
- The `session_stop_signal_` lives as long as the `server` object.
- Sessions capture a **slot**, not a reference to the signal—safe even if the session outlives the emit (which it won’t, because you’re stopping the server).
- No race conditions: `emit()` is thread-safe and idempotent.

---

### 🧪 Testing
1. Start server, open 2 connections.
2. Send Ctrl+C.
3. Verify:
   - "Stopping server..." log appears.
   - Both sessions log "Session cancelled." (or similar).
   - Program exits promptly.

---

Let me know if you'd like the full code patches for `session.hpp/cpp` or help adapting this to your exact `connection`/`ssl_stream` usage!