fix(bayn): preserve local candidate decision status

[gregkonush]

Summary

• Add a compact v3 local-development receipt domain that binds reviewed source revision, blobs, hashes, attempt ordinal, terminal PASS/HOLD_REJECT/FAILED status, and terminal report hash.
• Keep runtime market-data path/content and full metric output out of the receipt.
• Keep the Effect interpreter cohesive with explicit dependency injection, reserve-before-execute ordering, one finalization, O_EXCL crash burning, interruption failure finalization, source-scoped legacy-receipt compatibility across the main worktree and registered linked-worktree admin records (including prunable records), evaluator-source revalidation, directory-sync durability, and shared legacy/v3 ordinal claim coordination.
• Keep the documented package script contract and route its existing wrapper entrypoint in-process to the service-owned interpreter.

Related Issues

None

Testing

• Focused service receipt tests: 16 passed, 37 assertions.
• Focused scripts-wrapper compatibility tests: 14 passed, 36 assertions; existing qualification contract tests: 17 passed, 90 assertions.
• Full local Bayn suite at the final local head: 1,242 passed, 153 skipped, 0 failed across 116 files; 8,809 assertions.
• Final-head CI is required after this final review-fix head: full PR checks, real PostgreSQL integration, both Bayn image builds, dependency invariant, broker sandbox, Effect compatibility, and release gate.
• Service typecheck, Effect diagnostics, lint, Oxlint, format, and build passed; one pre-existing Bayn Oxlint warning remains outside this change in src/candidate-development-domain/preflight.ts.
• Package-wide TypeScript checking still reports unrelated existing errors outside this lane; the changed local command has no remaining package-tsc diagnostic.
• No candidate, holdout, broker, or access-data execution occurred; full-suite evidence uses repository test fixtures only.

Breaking Changes

None

Checklist

• Testing section documents exact validation performed.
• Screenshots and Breaking Changes handled.
• Documentation, release notes, follow-ups updated/tracked.

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