V32 Gate 4: Prove Reading pipeline coverage

Adds a source-safe generated Reading pipeline coverage artifact and checker for ReadNeedComprehensionSynthesis and ReadFitsFindingSynthesis.

Covers phases, PTRR agents, PTRR steps, ThricifiedGeneration telemetry, prompt digest metadata, tool input/output telemetry, plural Finding Fits discovery, source-safe preview, and settlement-bound PR delivery.

Wires Gate 4 package scripts, gate-quality workflow coverage, V32 spec-family updates, roadmap status, and refreshed deterministic replay artifacts.

Validation: pnpm run check:v32-reading-pipeline-proof-coverage; focused Reading pipeline Jest tests; pnpm run check:v32-gate1 && pnpm run check:v32-gate2 && pnpm run check:v32-gate3 && pnpm run check:v32-gate4; V32 spec/canonical/posture checks; pnpm --filter @bitcode/pipeline-asset-pack typecheck; full asset-pack Jest suite; git diff --check.

Author: geraldarthurdavis

.bitcode/v32-deterministic-replay-report.json

@@ -11,9 +11,9 @@
     {
       "artifactPath": ".bitcode/v32-proof-coverage-matrix.json",
       "byteEqual": true,
-      "byteLength": 19340,
-      "firstDigest": "sha256:dad4dd6b12ed1c45b703ba88bffa589981d722e51bb298f52aec84ed16c4a4c8",
-      "secondDigest": "sha256:dad4dd6b12ed1c45b703ba88bffa589981d722e51bb298f52aec84ed16c4a4c8"
+      "byteLength": 19541,
+      "firstDigest": "sha256:17baa9261f5b338ab319519e86e0aa5562403182e9fc9e71873a33c3821d19be",
+      "secondDigest": "sha256:17baa9261f5b338ab319519e86e0aa5562403182e9fc9e71873a33c3821d19be"
     }
   ],
   "artifactId": "v32-deterministic-replay-report",

.bitcode/v32-proof-coverage-matrix.json

@@ -90,12 +90,12 @@
         "blocked-readiness-without-repair-path",
         "pre-settlement-source-disclosure"
       ],
-      "fixture": "packages/pipelines/asset-pack/src/__tests__/reading-pipeline-contract.test.ts; packages/pipelines/asset-pack/src/__tests__/reading-pipeline-observability.test.ts; packages/pipelines/asset-pack/src/__tests__/read-need.test.ts; packages/pipelines/asset-pack/src/__tests__/asset-pack-disclosure.test.ts",
+      "fixture": "packages/pipelines/asset-pack/src/__tests__/reading-pipeline-contract.test.ts; packages/pipelines/asset-pack/src/__tests__/reading-pipeline-observability.test.ts; packages/pipelines/asset-pack/src/__tests__/v32-reading-pipeline-proof-coverage.test.ts; packages/pipelines/asset-pack/src/__tests__/read-need.test.ts; packages/pipelines/asset-pack/src/__tests__/asset-pack-disclosure.test.ts",
       "owner": "packages/pipelines/asset-pack",
       "plannedGate": "Gate 4",
       "promotedBehavior": "Read Request to reviewed Need, Finding Fits, source-safe AssetPack preview, settlement boundary, and paid PR delivery.",
       "repairPosture": "Gate 4 enumerates every pipeline phase, PTRR agent, PTRR step, ThricifiedGeneration, prompt, tool, typed output, telemetry row, and storage record.",
-      "replayCommand": "pnpm --filter @bitcode/pipeline-asset-pack exec jest --config jest.config.cjs --runTestsByPath src/__tests__/reading-pipeline-contract.test.ts src/__tests__/reading-pipeline-observability.test.ts src/__tests__/read-need.test.ts src/__tests__/asset-pack-disclosure.test.ts --runInBand",
+      "replayCommand": "pnpm --filter @bitcode/pipeline-asset-pack exec jest --config jest.config.cjs --runTestsByPath src/__tests__/reading-pipeline-contract.test.ts src/__tests__/reading-pipeline-observability.test.ts src/__tests__/v32-reading-pipeline-proof-coverage.test.ts src/__tests__/read-need.test.ts src/__tests__/asset-pack-disclosure.test.ts --runInBand && pnpm run check:v32-reading-pipeline-proof-coverage",
       "requiredContexts": [
         "ReadNeedComprehensionSynthesis",
         "ReadFitsFindingSynthesis",