feat: Added "Commit" row to version metadata panel on TechniquePage — r…

- "frontend/src/pages/TechniquePage.tsx"

GSD-Task: S03/T02

.gsd/milestones/M006/slices/S03/S03-PLAN.md

@@ -17,7 +17,7 @@ Steps:
   - Estimate: 30m
   - Files: docker/Dockerfile.api, docker-compose.yml, backend/config.py, backend/pipeline/stages.py
   - Verify: ssh ub01 'cd /vmPool/r/repos/xpltdco/chrysopedia/backend && python -c "from pipeline.stages import _capture_pipeline_metadata; import json; m = _capture_pipeline_metadata(); assert \"git_commit_sha\" in m, f\"missing key: {m.keys()}\"; print(json.dumps(m, indent=2))"'
-- [ ] **T02: Display commit SHA in frontend version metadata panel** — Add a conditional render of `git_commit_sha` in the version metadata panel on TechniquePage.tsx. The panel already renders model, captured_at, and prompt_hashes — add a new item for the commit hash using monospace font.
+- [x] **T02: Added "Commit" row to version metadata panel on TechniquePage — renders abbreviated 7-char git SHA using existing hash-value monospace styling, hidden when SHA is "unknown"** — Add a conditional render of `git_commit_sha` in the version metadata panel on TechniquePage.tsx. The panel already renders model, captured_at, and prompt_hashes — add a new item for the commit hash using monospace font.
 
 **Important context for executor:** The canonical codebase is on ub01 at `/vmPool/r/repos/xpltdco/chrysopedia`. SSH with `ssh ub01` to edit files and build. The frontend is at `frontend/` in that repo.
 

.gsd/milestones/M006/slices/S03/tasks/T01-VERIFY.json

@@ -0,0 +1,18 @@
+{
+  "schemaVersion": 1,
+  "taskId": "T01",
+  "unitId": "M006/S03/T01",
+  "timestamp": 1774869874431,
+  "passed": false,
+  "discoverySource": "task-plan",
+  "checks": [
+    {
+      "command": "ssh ub01 'cd /vmPool/r/repos/xpltdco/chrysopedia/backend",
+      "exitCode": 2,
+      "durationMs": 6,
+      "verdict": "fail"
+    }
+  ],
+  "retryAttempt": 1,
+  "maxRetries": 2
+}

.gsd/milestones/M006/slices/S03/tasks/T02-SUMMARY.md

@@ -0,0 +1,74 @@
+---
+id: T02
+parent: S03
+milestone: M006
+provides: []
+requires: []
+affects: []
+key_files: ["frontend/src/pages/TechniquePage.tsx"]
+key_decisions: ["Filter out 'unknown' SHA from display — no value in showing a placeholder to users"]
+patterns_established: []
+drill_down_paths: []
+observability_surfaces: []
+duration: ""
+verification_result: "Ran npm run build (tsc + vite) in the frontend directory on ub01 — zero TypeScript errors, clean production build with 46 modules transformed."
+completed_at: 2026-03-30T11:25:43.661Z
+blocker_discovered: false
+---
+
+# T02: Added "Commit" row to version metadata panel on TechniquePage — renders abbreviated 7-char git SHA using existing hash-value monospace styling, hidden when SHA is "unknown"
+
+> Added "Commit" row to version metadata panel on TechniquePage — renders abbreviated 7-char git SHA using existing hash-value monospace styling, hidden when SHA is "unknown"
+
+## What Happened
+---
+id: T02
+parent: S03
+milestone: M006
+key_files:
+  - frontend/src/pages/TechniquePage.tsx
+key_decisions:
+  - Filter out 'unknown' SHA from display — no value in showing a placeholder to users
+duration: ""
+verification_result: passed
+completed_at: 2026-03-30T11:25:43.662Z
+blocker_discovered: false
+---
+
+# T02: Added "Commit" row to version metadata panel on TechniquePage — renders abbreviated 7-char git SHA using existing hash-value monospace styling, hidden when SHA is "unknown"
+
+**Added "Commit" row to version metadata panel on TechniquePage — renders abbreviated 7-char git SHA using existing hash-value monospace styling, hidden when SHA is "unknown"**
+
+## What Happened
+
+Edited frontend/src/pages/TechniquePage.tsx on ub01, inserting a new conditional block in the version-metadata__grid after the existing prompt_hashes section. The block checks for git_commit_sha key in pipeline_metadata, filters out the "unknown" fallback, and renders a "Commit" label with the first 7 characters of the SHA inside a code tag using the existing version-metadata__hash-value class for consistent monospace styling. Build passes cleanly.
+
+## Verification
+
+Ran npm run build (tsc + vite) in the frontend directory on ub01 — zero TypeScript errors, clean production build with 46 modules transformed.
+
+## Verification Evidence
+
+| # | Command | Exit Code | Verdict | Duration |
+|---|---------|-----------|---------|----------|
+| 1 | `ssh ub01 'cd /vmPool/r/repos/xpltdco/chrysopedia/frontend && npm run build 2>&1 | tail -5'` | 0 | ✅ pass | 5000ms |
+
+
+## Deviations
+
+Added a filter for !== "unknown" — showing a literal "unknown" string in the UI is meaningless, so the SHA only renders when a real commit hash was captured at build time.
+
+## Known Issues
+
+None.
+
+## Files Created/Modified
+
+- `frontend/src/pages/TechniquePage.tsx`
+
+
+## Deviations
+Added a filter for !== "unknown" — showing a literal "unknown" string in the UI is meaningless, so the SHA only renders when a real commit hash was captured at build time.
+
+## Known Issues
+None.