fix(#3770): require intentional RED evidence before GREEN (#4279)

* test(3770): add failing tests for intentional RED evidence gate

RED: classifyRedEvidence / buildRedEvidenceRecord / check tdd-red-evidence do
not exist yet; every row fails on require. Per #3770 only an intentional
target-test failure may authorize GREEN; zero-test discovery, fixture crashes,
unrelated failures, and unexpected green are INVALID_RED.

* fix(3770): require intentional RED evidence before GREEN

Only an intentional failure of the TARGET test (distinctly named, TAP-reported
assertion failure) classifies as RED_EVIDENCE_OK and authorizes GREEN. Zero-test
discovery, fixture/load crashes (file-named failures), nonzero exits without a
failing test, unrelated failures, unexpected greens, and malformed/missing
records are INVALID_RED and block GREEN.

- src/tdd-red-evidence.cts: pure classifier + persisted record builder (reuses
  the prohibition-enforcement TAP primitives; fail-closed, never throws)
- check tdd-red-evidence <record.json>: validates the persisted record
  (command, exit code, failing test, expected, actual)
- gsd-executor.md / references/tdd.md / references/execute-mvp-tdd.md: RED now
  requires the evidence record + gate verdict, not a nonzero exit or a RED: tag

* chore(3770): regenerate inventory manifest for tdd-red-evidence.cjs

* fix(3770): fit executor fail-fast under size cap, fix unrelated-failure fixture, ignore generated lib

- gsd-executor.md: compress the #3770 fail-fast rule to one line (49149 B <
  49152 cap; line-count parity keeps the #2751 PROSE_ALLOWLIST line 816 valid)
- tests: the row-6 fixture used String.replace (first-occurrence), so the
  `not ok` line still named the target test and the classifier was right to
  accept it; replaceAll makes the failure genuinely unrelated
- eslint.config.mjs: ignore tsc-generated bin/lib/tdd-red-evidence.cjs
  (lint the src/*.cts source, per ADR-457 migration rule)

Emitted-Drift-Ack-Growth: gsd-executor.md — the #3770 fail-fast rule now requires intentional RED evidence (check tdd-red-evidence) before GREEN; +172 bytes, kept under the LARGE cap and on one line

* chore(3770): add changeset

* chore(3770): backfill PR number in changeset

---------

Co-authored-by: sim <sim@local>

docs/INVENTORY-MANIFEST.json

@@ -526,6 +526,7 @@
       "surface.cjs",
       "task-command-router.cjs",
       "task-content-resolution.cjs",
+      "tdd-red-evidence.cjs",
       "teams-status.cjs",
       "template.cjs",
       "text-lines.cjs",

docs/INVENTORY.md

@@ -487,6 +487,7 @@ Full listing: `gsd-core/bin/lib/*.cjs`.
 | `broken-windows.cjs` | Broken-windows ledger library (issue #1950) — typed IR + I/O for `.planning/WINDOWS.md` (cross-phase defect register); pure `parseLedger`/`renderLedger`/`appendWindow`/`markWaived`/`markFixed`/`openCount` + I/O `cmdWindowsStatus`/`cmdWindowsAppend`/`cmdWindowsWaive`/`cmdWindowsMarkFixed`; frozen `REASON` enum for typed-error assertions; CLI surface `gsd-tools windows status\|append\|waive\|fixed`. Generated from `src/broken-windows.cts` |
 | `capability-writer.cjs` | Capability State Writer (ADR-1213) — write-side inverse of the resolver; projects desired per-capability enabled/gates onto surface + config substrates, then re-resolves (assert-and-report); exports `setCapabilityState` and I/O handler `cmdCapabilitySet`; command surface: `gsd-tools capability set <id> [--on\|--off] [--gate <key>=<true\|false>]` |
 | `check-command-router.cjs` | Thin CJS subcommand router adapter for `gsd-tools check` |
+| `tdd-red-evidence.cjs` | TDD RED-evidence classifier (issue #3770, compiled from `src/tdd-red-evidence.cts`, gitignored) — pure `classifyRedEvidence`/`buildRedEvidenceRecord`: only an intentional failure of the TARGET test (distinctly named, TAP-reported assertion failure with nonzero exit) is `RED_EVIDENCE_OK`; zero-test discovery, fixture/load crashes (file-named failures), nonzero exits without a failing test, unrelated failures, unexpected greens, and malformed records are `INVALID_RED` (fail-closed, never throws); CLI surface `gsd_run check tdd-red-evidence <record.json>` validates the persisted record (command, exit code, failing test, expected, actual) |
 | `claude-orchestration-command-router.cjs` | ADR-959 capability command router for Claude orchestration — workflow-backend detection and emission (#1143) |
 | `claude-orchestration.cjs` | Claude Orchestration capability (#1143) — Workflow-tool backend detection + emitter; `detectWorkflowBackend` fail-closed gate (`{available, backend: 'workflow'\|'inline', reason}`, degrades to today's inline behavior unless every gate opens) and `emitWorkflowScript` (maps GSD's wave/plan model onto Workflow primitives: wave → sequential `parallel()` barriers, plan → `agent(...)` with per-plan worktree isolation mirroring the inline path). Pure, zero external dependencies, never throws; never invokes the Workflow tool itself |
 | `cli-exit.cjs` | `ExitError` class and `runMain()` helper — CLI entrypoints throw `ExitError` instead of calling `process.exit()`; `runMain()` translates the outcome into `process.exitCode` so output flushes cleanly |