fix(web): sanitize Gemini JSON ref tool results

[chrarnoldus]

Summary

• extract sanitizeJsonRefToolResults into a shared provider utility
• sanitize JSON $ref fields for Gemini tool results in provider-specific request handling
• retain opt-in sanitization for direct custom and experiment providers
• cover Gemini and non-Gemini provider-specific behavior

Testing

• Not run locally; CI will validate the change as requested.
• oxfmt --list-different passed for all touched files.
• git diff --check passed.

[kilo-code-bot]

Code Review Summary

Status: No Issues Found | Recommendation: Merge

Files Reviewed (1 files)

• apps/web/src/lib/ai-gateway/providers/apply-provider-specific-logic.test.ts

Previous Review Summaries (2 snapshots, latest commit d9b1246)

Current summary above is authoritative. Previous snapshots are kept for context only.

Previous review (commit d9b1246)

Status: 1 Issue Found | Recommendation: Address before merge

Overview

Severity	Count
CRITICAL	0
WARNING	1
SUGGESTION	0

Issue Details (click to expand)

WARNING

File	Line	Issue
apps/web/src/lib/ai-gateway/providers/apply-provider-specific-logic.test.ts	164	Orphan tool result is stripped before assertion

Files Reviewed (4 files)

• apps/web/src/lib/ai-gateway/experiments/build-direct-provider.ts
• apps/web/src/lib/ai-gateway/providers/apply-provider-specific-logic.test.ts - 1 issue
• apps/web/src/lib/ai-gateway/providers/apply-provider-specific-logic.ts
• apps/web/src/lib/ai-gateway/providers/sanitize-json-ref-tool-results.ts

Fix these issues in Kilo Cloud

Previous review

Status: 1 Issue Found | Recommendation: Address before merge

Overview

Severity	Count
CRITICAL	0
WARNING	1
SUGGESTION	0

Issue Details (click to expand)

WARNING

File	Line	Issue
apps/web/src/lib/ai-gateway/providers/apply-provider-specific-logic.test.ts	161	Orphan tool result is stripped before assertion

Files Reviewed (4 files)

• apps/web/src/lib/ai-gateway/experiments/build-direct-provider.ts
• apps/web/src/lib/ai-gateway/providers/apply-provider-specific-logic.test.ts - 1 issue
• apps/web/src/lib/ai-gateway/providers/apply-provider-specific-logic.ts
• apps/web/src/lib/ai-gateway/providers/sanitize-json-ref-tool-results.ts

Fix these issues in Kilo Cloud

---

_{Reviewed by grok-4.6 · Input: 63.7K · Output: 5.1K · Cached: 144.1K}

_{Review guidance: REVIEW.md from base branch main}

[chrarnoldus]

Addressed the review warning in 1c93d14. The provider-specific tests now use a valid assistant tool-call followed by its matching tool result, and the assertion locates the retained tool message after repair.

Validation:

• NODE_ENV=test pnpm --filter web exec jest --runInBand src/lib/ai-gateway/providers/apply-provider-specific-logic.test.ts (38 passed)
• scripts/typecheck-all.sh (passed)