feat(review): skip auto-review for bot/ignored authors via review.auto_review.ignore_authors globs

[JSONbored]

Part of #1954. Add review.auto_review.ignore_authors (glob list, e.g. *[bot], dependabot) so operators skip named bots/authors beyond the existing hard bot_author check in decidePublicSurface (src/signals/settings-preview.ts:87). Deterministic glob match on the author login; default empty ⇒ no extra skips.

Deliverables

• Parse ignore_authors as a bounded, deduped string glob list in parseReviewConfig (src/signals/focus-manifest.ts:653) with a MAX cap (mirror MAX_PATH_INSTRUCTIONS discipline, src/signals/focus-manifest.ts:175); serialize in reviewConfigToJson
• Add an author-glob branch to decideReviewEligibility (src/review/review-eligibility.ts) reusing the manifest glob matcher (matchesManifestPath-style) or a small login-glob helper; skipReason="ignored_author"
• Wire at maybePublishPrPublicSurface (src/queue/processors.ts:4533) using the already-resolved author login (pr.authorLogin)
• Unit tests: matching glob ⇒ skip, non-match ⇒ eligible, empty list ⇒ eligible, cap enforced, case handling; 97% branch

References

• src/signals/settings-preview.ts:87
• src/queue/processors.ts:4551
• src/signals/focus-manifest.ts:175
• #1954

Part of #1954.

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size: S · gittensor:feature

[linear-code]

JSO-2177