chore(lint): prevent generic isRecord guards

[betegon]

Summary

Prevents new generic isRecord type guards under src/. Existing call sites now use local, shape-specific guards so they state which runtime shape they need.

Replay recording segments now keep the object boundary already published by @sentry/api instead of degrading it to a local unknown[][] schema. The formatter still uses small semantic guards for nested RRWeb payloads.

Changes

• add a Biome Grit rule that flags function-valued isRecord declarations
• replace the existing generic helpers with domain-specific guards
• fetch replay recording segments through the generated API operation and validate its generated response contract
• remove the redundant local replay recording schema and the bespoke lint-rule test harness

Test Plan

• pnpm exec vitest run test/lib/api/replays.test.ts test/lib/formatters/replay.test.ts — 12 passed
• pnpm run lint
• pnpm run typecheck
• pnpm run check:deps
• pnpm run check:errors — no error-class anti-patterns; existing silent-catch backlog remains advisory
• temporary Biome smoke fixtures confirmed isRecord is rejected and a local hasFileMap guard is accepted

[github-actions]

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[github-actions]

Codecov Results 📊

✅ Patch coverage is 89.47%. Project has 5473 uncovered lines.
✅ Project coverage is 81.78%. Comparing base (base) to head (head).

Files with missing lines (1)

File	Patch %	Lines
src/lib/formatters/replay.ts	82.61%	⚠️ 4 Missing and 3 partials

Coverage diff

@@            Coverage Diff             @@
##          main       #PR       +/-##
==========================================
+ Coverage    81.71%    81.78%    +0.07%
==========================================
  Files          427       427         —
  Lines        30036     30042        +6
  Branches     19526     19555       +29
==========================================
+ Hits         24544     24569       +25
- Misses        5492      5473       -19
- Partials      2049      2047        -2

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