feat(app-feedback): mock UI for the feedback pipeline: every issue and how far the pipeline has taken it

[ATX24]

typescript2/app-feedback, a Next 15 app on app-beps's stack and theme
tokens. Mock data only (src/lib/mock-data.ts); the types mirror
models.baml (Issue, IssueStatus) and handle_issue.baml (HandleOutcome)
so real data is a data-source change later.

• / : stat tiles (open, agent running, draft PRs, needs a human,
  landed), status / subsystem / difficulty filters, search, list and
  board views. Every row carries a pipeline strip: one segment per
  stage (triaged, organized, gauged, design pass, fix pass, gate, PR),
  colored done / running / failed / pending.
• /issues/[id]: description, repros, resolution plan, design doc,
  comments, the pipeline timeline, and the last handle_issue run
  (outcome, turns, time, gate steps, PR).

Stack (bottom to top)

1. feat(atb2): sandbox for handle_issue: worktree lifecycle, allowlisted env, repro pre-check on canary #4634 sandbox
2. feat(atb2): the gate: fmt, clippy, changed-crate tests, nextest, insta, the baml corpus; judged by exit code #4635 the gate
3. feat(atb2): handle_issue: a design pass, then a fix pass in the sandbox; PR body; outcome; agents run on Fable #4636 handle_issue
4. feat(atb2): handle_issue evals; run_tests.sh picks a pipeline stage; //# headers for the playground graph #4637 evals, run_tests.sh, //# headers
5. feat(app-feedback): mock UI for the feedback pipeline: every issue and how far the pipeline has taken it #4639 app-feedback mock UI (this PR; independent of the BAML code, stacked so it lands after it)

Verified: tsc --noEmit, eslint, next build (15 static pages).

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Project	Deployment	Actions	Updated
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developer-docs	Error		Sep 2, 2026 5:50pm UTC
promptfiddle2	Ready	Preview	Sep 2, 2026 5:50pm UTC

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[github-actions]

⏭️ Performance benchmarks were skipped

Perf benchmarks (CodSpeed) are opt-in on pull requests — they no longer run on every push. They always run automatically after merge to canary/main.

To run them on this PR, do any of the following, then push a commit (or re-run CI):

• Add RUN_CODSPEED=1 to the PR description, or
• Include run-perf or /perf in the PR title or any commit message.

[github-actions]

Binary size checks passed

✅ 7 passed

	Artifact	Platform	File	Gzip	Gated on	Baseline	Delta	Status
✅	baml-cli	Linux	🔒 72.9 MB	27.5 MB	file	72.9 MB	+18.6 KB (+0.0%)	OK
✅	packed-program	Linux	🔒 28.6 MB	10.9 MB	file	28.6 MB	-20.0 KB (-0.1%)	OK
✅	baml-cli	macOS	🔒 63.4 MB	25.2 MB	file	63.3 MB	+33.2 KB (+0.1%)	OK
✅	packed-program	macOS	🔒 25.8 MB	10.2 MB	file	25.8 MB	-43.8 KB (-0.2%)	OK
✅	baml-cli	Windows	🔒 83.2 MB	27.9 MB	file	83.0 MB	+108.2 KB (+0.1%)	OK
✅	packed-program	Windows	🔒 30.9 MB	10.8 MB	file	30.9 MB	-51.8 KB (-0.2%)	OK
✅	bridge_wasm	WASM	22.2 MB	🔒 5.7 MB	gzip	5.7 MB	+32.8 KB (+0.6%)	OK

🔒 = the size this artifact is GATED on (ceiling + delta). Binaries gate on file size (installed binary); WASM gates on gzip (download size). The other size is shown for information only.

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Generated by cargo size-gate · workflow run