fix(scripts): document AI review-pipeline self-host env vars

[jaytbarimbao-collab]

Closes #6993

gen-selfhost-env-reference.mjs's DEFAULT_SOURCE_ROOTS never scanned the AI review pipeline (src/services/ai-review.ts, src/queue/ai-review-orchestration.ts, src/queue/processors.ts), so the self-host AI_* knobs read there — AI_SUMMARIES_ENABLED, AI_PUBLIC_COMMENTS_ENABLED, AI_MAX_OUTPUT_TOKENS, AI_BYOK_DAILY_REPO_LIMIT — were missing from the generated reference despite being real self-host config.

Change

• Add the three AI review-pipeline files to DEFAULT_SOURCE_ROOTS.
• Regenerate apps/loopover-ui/src/lib/selfhost-env-reference.ts. The four named vars now appear, along with the sibling self-host vars those files read (previously undocumented for the same scan-gap reason) — the generator documents what the scanned files actually read.

Tests

• Regression test asserting collectSelfHostEnvVars picks up all four vars from the real repo, with AI_MAX_OUTPUT_TOKENS's first reference pinned to src/services/ai-review.ts.

Validation

• npx vitest run test/unit/selfhost-env-reference-script.test.ts — 6 passed.
• npm run selfhost:env-reference:check — committed reference in sync.
• 100% patch coverage on the changed scripts/** lines (apps/** generated file is outside Codecov coverage.include).

[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 93.75%. Comparing base (0a6a780) to head (8419bab).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #7143   +/-   ##
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  Coverage   93.75%   93.75%           
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  Files         692      692           
  Lines       68832    68832           
  Branches    18781    18781           
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  Hits        64535    64535           
  Misses       3302     3302           
  Partials      995      995           

Flag	Coverage Δ
shard-1	43.75% <ø> (ø)
shard-2	36.91% <ø> (ø)
shard-3	33.14% <ø> (ø)
shard-4	34.44% <ø> (ø)
shard-5	32.27% <ø> (-0.01%)	⬇️
shard-6	45.90% <ø> (ø)

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[loopover-orb]

Tip

✅ LoopOver review result - approve/merge recommended

_{Review updated: 2026-07-18 00:43:23 UTC}

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

✅ Suggested Action - Approve/Merge

• safe to merge

Review summary
This PR adds three AI review-pipeline source files (`src/services/ai-review.ts`, `src/queue/ai-review-orchestration.ts`, `src/queue/processors.ts`) to `DEFAULT_SOURCE_ROOTS` in the env-reference generator, then regenerates the committed reference file, which now includes the four named vars from #6993 plus sibling vars from those same files. The change is mechanical, narrow, and correctly scoped to the linked issue. The regression test pins `AI_MAX_OUTPUT_TOKENS` to `src/services/ai-review.ts` as proof the new root is the source of the fix, which is a solid, non-fabricated assertion since the generator's file-scan behavior is exercised against the real repo.

Nits — 3 non-blocking

• The generated `selfhost-env-reference.ts` file now sits at ~612 lines per the external size check, but this is an auto-generated artifact (`Do not edit manually`) so file-length norms don't really apply — no action needed.
• test/unit/selfhost-env-reference-script.test.ts:164 the new `describe` block runs `collectSelfHostEnvVars({})` against the real repo filesystem rather than a fixture, which is appropriate here (it's explicitly testing real-repo drift) but is a different testing style from the rest of the file's fixture-based tests — worth a one-line comment noting why, which the PR already partially provides.
• Consider whether `AI_DAILY_NEURON_BUDGET`, `AI_GATEWAY_ID`, and `AI_REVIEW_PLAN` (newly surfaced sibling vars in ai-review.ts) need corresponding rows in the self-hosting-configuration docs page per the `selfhost-docs-audit.ts` drift guard — worth confirming `npm run docs:drift-check` covers descriptions for these, not just presence.

Decision drivers

• ✅ Code review — No blockers (1 reviewer)
• ✅ Gate result — Passing (No configured blocker found.)

Context & advisory signals — never blocks the verdict

Signal	Result	Evidence
Linked issue	✅ Linked	#6993
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 (1 linked issue).
Validation posture	✅ 25/25	PR body includes validation/test evidence.
Contributor workload	✅ 10/10	Author activity: 191 registered-repo PR(s), 99 merged, 14 issue(s).
Contributor context	✅ Confirmed Gittensor contributor	jaytbarimbao-collab; Gittensor profile; 191 PR(s), 14 issue(s).
Improvement	✅ Minor	risk: clean · value: minor · LLM: minor

Linked issue satisfaction

Addressed
The PR adds the three AI review-pipeline files to DEFAULT_SOURCE_ROOTS, regenerates selfhost-env-reference.ts to include all four required vars (AI_SUMMARIES_ENABLED, AI_PUBLIC_COMMENTS_ENABLED, AI_MAX_OUTPUT_TOKENS, AI_BYOK_DAILY_REPO_LIMIT) with correct firstReference paths, and adds a regression test asserting the generator picks up these vars from the new source roots.

Review context

• Author: jaytbarimbao-collab
• Role context: outside_contributor
• Public audience mode: oss maintainer
• Lane context: Repository is configured for direct PR review.
• Public profile languages: Rust
• Official Gittensor activity: 191 PR(s), 14 issue(s).
• PR-specific overlap: none found.

Contributor next steps

• Keep the PR focused and include validation evidence before maintainer review.

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.

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

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