Task: Migrate the market and configuration documents

Move curve configuration, today's market, pricing engines, stress testing and the ORE run document. Curve configuration alone is the largest single mapper, so it is the test of whether the table shape generalises.

• Each of the five families is read and written through the codec.
• Their mappers are deleted in the same change.
• The corpus round-trip harness passes for each family's documents.

(Implementation strategy. Written when work starts; key decisions are distilled into the parent story's * Decisions at close, but the plan itself stays — it is the historical record of what we did.)

Every number this task claims about a tree, with the command that produced it and the commit it was measured at. A number without both is not a measurement, because a clean-up record describes a tree and trunk moves under a branch: a consumer count, a gate's component count and a suite's size all change with no code changing, and the reader of a bare number cannot tell which tree it came from. Where the raw output matters, put it in an evidence/ file beside the task and name that file in the Command column.

Manual QA scenarios (scaffolded via compass add test_scenario) that verify this task. Link new ones here as they're created; the scenario doc itself links back via its "Verifies task" field.

This task was done inside the reference data task. Its PRs are listed there.

All five families are on the codec. Curve configuration landed in #3532 and #3544. Pricing engines landed in #3489. The ORE run document landed in #3547 and #3548. Today's market landed in #3563.

Stress testing is the exception to the acceptance wording. Its table was generated in #3545 and the harness proves it, but nothing in the product reads the stress test XML, so there is no projection to write. The old stress testing mapper had no caller and was deleted. The census records this.