Gate repeated estimating on current proposal state

[adrianwebb]

Outcome

Prevent repeated planning rounds from admitting an estimator against a proposal after voting or acceptance. A racing estimator result fails closed before governance integration.

Work authority

• Work item / Issue: Stop proposal-bound estimating when its governed proposal is accepted #388, Restore workday-bound Discussion authoring for golden chat #390; Platform #520
• Proposal / decision: SDK golden retry-2 proposal v8; decision 91debb76-2b12-4415-9a09-b2895c760433
• Assignment / checkpoint: stale estimator assignment_X3VOucBRGchPcKVZ4wwcp64ZR5VS0T70, cancelled before completion
• Actor: Codex
• Human authority: adrianwebb
• Agent / capacity provider: local dev2 managed Agent provider
• Exact base ref: staging 201ffac
• Exact head ref: codex/estimator-after-acceptance-388 5bd0d47

Contributor mode (select one):

• Human-authored
• Agent-assisted under human authority
• Agent-authored under human authority

Plan

Use current governance status during the single living-graph projection: estimating nodes in repeated rounds become cancelled once the proposal leaves draft/open; a racing completed result is rejected before TreeDX/governance reads and writes. Preserve completed estimator receipts and the accepted decision. Focused and live repair acceptance passed; broader SDK golden acceptance remains separate.

Changes and commits

• febee98 gates projected estimators on current proposal state and rejects racing completions.
• 5bd0d47 routes workday-bound Discussion lookup through the existing capacity service, with a separate-store regression test.

Verification

• 11 focused Vitest tests pass across projector and estimate integration; 2 Discussion custody tests pass.

• npm run build and npm run check:file-architecture pass.

• No TypeScript diagnostics in touched files; repository-wide tsc --noEmit still fails on unrelated baseline errors.

• trsd dev rebuild api.service completed successfully; retry-3 eight-role trsd send now posts to workday-bound Discussion. Role-specific agent responses returned; focused stale-estimator gate and all three Actions passed.

• I ran the narrowest relevant package verification and documented any checks that could not be run.

Risk and rollback

The new projection closes only estimating nodes bound to closed proposals; historical completed assignments remain immutable. A racing result fails closed. Revert this commit through staging if regression occurs and rebuild the API in development mode. No RC, purge, or host package change.

Completion summary

This bounded repair is ready for staging integration. The complete SDK golden run, including post-acceptance scheduling, remains Platform #520 and is not claimed here.

AGPL committer authorization

The base-owned author authorization workflow governs this PR; no per-PR grant is requested.

Submission checklist

• The change is bounded to the stated work item and target repository.
• Exact base and head refs are recorded and the branch is ready for review.
• Verification and compatibility evidence are recorded above.
• No plaintext secrets, credentials, machine state, or unrelated residue are included.
• Plan, status, commits, and completion summary form a complete durable record.
• Rollback or recovery steps are documented and executable.