fix(signals): classify Sass source maps as generated

[jimcody1995]

Summary

• Extend isGeneratedFile in path-matchers.ts to treat .sass.map as generated output, matching the existing .scss.map/.less.map/.mdx.map handling (fix(signals): classify scss and less source maps as generated #3376, fix(signals): classify MDX source maps as generated #3446).
• Sass is a first-class front-end extension in review/visual/paths.ts; bundler source-map siblings were still miscounted as substantive source.

Scope

• Conventional Commit title format.
• Focused — path-matchers + unit tests only.
• Follows CONTRIBUTING.md.
• No linked issue needed.

Validation

• git diff --check
• npm run test:ci on Node 22
• npm audit --audit-level=moderate — 0 vulnerabilities
• Unit test covers dist/theme.sass.map as generated via isGeneratedFile

Safety

• No secrets, auth, or UI changes.
• N/A for UI Evidence.

UI Evidence

N/A — backend path classifier only.

Notes

Conflict avoidance: Touches only src/signals/path-matchers.ts and test/unit/path-matchers.test.ts. Zero overlap with open PRs (#3451 engine, #3450 enrichment provenance tests, #3443 selfhost, #3433 integrations, #3429 release workflow, #3414 review-evasion, #3314 miner, #3305 enrichment-wire, #3304 queue/gate). Merges cleanly after any of those land without rebase.

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 92.99%. Comparing base (d5e1caa) to head (0eed1ba).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3453   +/-   ##
=======================================
  Coverage   92.99%   92.99%           
=======================================
  Files         296      296           
  Lines       30972    30972           
  Branches    11294    11294           
=======================================
  Hits        28803    28803           
  Misses       1514     1514           
  Partials      655      655           

Files with missing lines	Coverage Δ
src/signals/path-matchers.ts	88.46% <ø> (ø)

🚀 New features to boost your workflow:

• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[gittensory-orb]

Warning

🟨🟨🟨🟨🟨🟨🟨🟨🟨🟨🟨🟨

⏸️ Gittensory review result - manual review recommended

_{Review updated: 2026-07-05 07:39:47 UTC}

2 files · 1 AI reviewer · no blockers · readiness 80/100 · CI green · clean

⏸️ Suggested Action - Manual Review

Review summary
This is a focused classifier parity fix: `isGeneratedFile` now treats `.sass.map` the same way it already treats `.scss.map`, `.less.map`, and `.css.map`, and the unit test drives the real exported matcher path. The change lines up with `src/review/visual/paths.ts`, where `.sass` is already a first-class front-end extension, so Sass source-map siblings stop being counted as substantive source. I do not see a reachable correctness issue in the visible diff.

Nits — 3 non-blocking

• nit: src/signals/path-matchers.ts:64 still describes the source-map regex as covering "JS/TS bundle extension" maps even though the alternation now also includes framework and stylesheet extensions; tighten the comment so the next extension addition does not have to reinterpret stale wording.
• src/signals/path-matchers.ts:64 could say `Source maps for first-class code, framework, MDX, and stylesheet bundle extensions.` to match the actual regex contents.
• Code changes lack test evidence — Add focused regression tests or explain why existing coverage is sufficient.

Signal	Result	Evidence
Code review	✅ No blockers	1 reviewer
Linked issue	✅ No-issue rationale	PR body explains why no issue is linked.
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 (no linked issue context).
Validation posture	❌ 5/25	Preflight is holding this PR: the review lane is unavailable, so it is not ready for automated review.
Contributor workload	✅ 10/10	Author activity: 58 registered-repo PR(s), 31 merged, 0 issue(s).
Contributor context	✅ Confirmed Gittensor contributor	jimcody1995; Gittensor profile; 58 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 registration is not available in the local Gittensory cache.
• Public profile languages: not available
• Official Gittensor activity: 58 PR(s), 0 issue(s).
• PR-specific overlap: none found.

Contributor next steps

• Await review-lane availability.
• Refresh registry data or choose a registered active repo.
• Link the issue being solved, or explicitly explain why this is a no-issue PR.

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}

---

💰 Earn for open-source contributions like this. Gittensor lets GitHub contributors earn for the work they already do — register to start earning →.

Checked by Gittensory, a quiet PR intelligence layer for OSS maintainers.

• Re-run Gittensory review

[gittensory-orb]

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