feat(site): add public per-repo review-quality leaderboard (#2568)

[jimcody1995]

Summary

• Adds publicQualityMetrics opt-in (DB migration, .gittensory.yml, maintainer dashboard toggle), default OFF.
• Ships /v1/public/repos/:owner/:repo/quality and /repos/:owner/:repo/quality reusing gate-precision false-positive telemetry and outcome calibration — public-safe aggregates only.
• Full patch-coverage tests: route 503 path, loader guard branches (unknown/private/uninstalled), invalid trend timestamps, settings persistence.

Fixes #2568

Test plan

• npx vitest run test/unit/public-quality-metrics.test.ts test/integration/public-quality-metrics-route-error.test.ts
• Integration: opted-in / opted-out / private / uninstalled / unknown repo quality routes
• npm run typecheck, npm --workspace @jsonbored/gittensory-ui run typecheck
• UI lint clean on new route + component (warnings only on route export pattern, matching other routes)
• Rebased on latest main; merge-tree clean vs open PRs feat(config): validate .gittensory.yml against schema (fail clearly pre-review) #3823–fix(queue): mark superseded webhook_events rows instead of leaving them stuck at 'queued' forever #3843

Made with Cursor

[superagent-security]

Superagent didn't find any vulnerabilities or security issues in this PR.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.47%. Comparing base (3da3ed8) to head (b0aabf2).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3846      +/-   ##
==========================================
+ Coverage   93.45%   93.47%   +0.01%     
==========================================
  Files         331      332       +1     
  Lines       33017    33110      +93     
  Branches    12086    12116      +30     
==========================================
+ Hits        30855    30948      +93     
  Misses       1530     1530              
  Partials      632      632              

Files with missing lines	Coverage Δ
src/api/routes.ts	94.93% <100.00%> (+0.03%)	⬆️
src/db/repositories.ts	96.59% <100.00%> (+<0.01%)	⬆️
src/db/schema.ts	71.18% <ø> (ø)
src/openapi/schemas.ts	100.00% <100.00%> (ø)
src/openapi/spec.ts	99.42% <100.00%> (+<0.01%)	⬆️
src/services/public-quality-metrics.ts	100.00% <100.00%> (ø)
src/signals/focus-manifest.ts	99.12% <100.00%> (ø)
src/signals/settings-preview.ts	98.54% <100.00%> (+0.01%)	⬆️

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✅ Gittensory review result - approve/merge recommended

_{Review updated: 2026-07-06 16:13:54 UTC}

22 files · 1 AI reviewer · no blockers · readiness 96/100 · CI green · clean

✅ Suggested Action - Approve/Merge

• safe to merge

Review summary
This PR adds an opt-in (`publicQualityMetrics`, default false) public per-repo review-quality endpoint and UI page, reusing existing gate-precision and slop-calibration telemetry to expose only aggregate counts/rates — no PII, logins, or scores. The gating logic in `loadPublicRepoQualityMetrics` (src/api/routes.ts) correctly mirrors the existing badge pattern (repo must exist, not be private, be installed, and have opted in), and the schema/migration/settings/manifest/openapi wiring is complete and consistent with the `badgeEnabled` precedent it's modeled on (migration 0115 is contiguous, non-temp, D1-safe). Tests cover the opted-in/opted-out/private/uninstalled/unknown branches and the 503 error path via a mocked loader throw.

Nits — 5 non-blocking

• `topPublicGateTypes` in src/services/public-quality-metrics.ts:118-127 slices the top 5 gate types without an explicit sort — confirm `gatePrecision.perGateType` is guaranteed sorted by blocked count upstream, otherwise 'top' is misleading.
• src/services/public-quality-metrics.ts:5 uses 'whitelist' in a comment; consider 'allowlist' for consistency with more neutral terminology used elsewhere.
• apps/gittensory-ui/src/components/site/public-repo-quality-page.tsx:46,64 hard-codes `8000` (timeout) and `60_000` (staleTime) inline; consider named constants for intent.
• src/db/repositories.ts's second `publicQualityMetrics: resolved.publicQualityMetrics,` assignment (near line 884) has an extra 2-space indent inconsistent with its sibling fields — cosmetic only.
• `PublicRepoQualityPage` (public-repo-quality-page.tsx) is a fairly large single component (~130 lines); the gate-types list and trend table could be split into subcomponents for readability.

Signal	Result	Evidence
Code review	✅ No blockers	1 reviewer
Linked issue	✅ Linked	#2568
Related work	✅ No active overlap found	No same-issue or scoped active PR overlap found.
Change scope	✅ 20/20	Low review scope from cached public metadata (draft PR; 1 linked issue).
Validation posture	✅ 25/25	PR body includes validation/test evidence.
Contributor workload	✅ 10/10	Author activity: 140 registered-repo PR(s), 92 merged, 0 issue(s).
Contributor context	✅ Confirmed Gittensor contributor	jimcody1995; Gittensor profile; 140 PR(s), 0 issue(s).
Gate result	✅ Passing	No configured blocker found.

Review context

• Author: jimcody1995
• Role context: outside_contributor
• Public audience mode: oss maintainer
• Lane context: Repository is configured for direct PR review.
• Public profile languages: TypeScript, JavaScript
• Official Gittensor activity: 140 PR(s), 0 issue(s).
• PR-specific overlap: none found.

Contributor next steps

• Mark ready when done.

Signal definitions

• Related work = same linked issue, overlapping active PRs, or title/path similarity.
• Change scope = cached public metadata such as size labels, draft state, and review-burden hints.
• Validation posture = whether the PR provides enough public validation/test evidence for maintainer review.
• Contributor workload = public contributor activity and cleanup pressure, not a repo-wide quality failure.
• Contributor context = public GitHub/Gittensor identity context; non-Gittensor status is not a blocker.

_{🟩 Safe / merged · 🟦 Advisory · 🟨 Held for review · 🟥 Blocked / closed}

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[loopover-orb]

Gittensory approves — the gate is satisfied and CI is green.