feat(opencode): add ling prompt and route gpt-5.5 models to gpt55

[kilo-code-bot]

Summary

• Add the new ling member to OpenCodePromptSchema in packages/db/src/schema-types.ts to match the upstream kilocode gateway PROMPTS constant.
• In apps/web/src/lib/ai-gateway/providers/model-settings.ts, route any model whose ID contains the substring gpt-5.5 to the gpt55 prompt via a new getOpenCodePrompt helper surfaced through getOpenCodeSettings.

Verification

N/A — no manual verification performed; long-running checks (install/format/typecheck/test) were intentionally skipped per instructions.

Visual Changes

N/A

Reviewer Notes

getOpenCodeSettings now always returns an object that may have an undefined prompt, matching how it already does for ai_sdk_provider and variants.

[kilo-code-bot]

Code Review Summary

Status: No Issues Found | Recommendation: Merge

Files Reviewed (2 files)

• apps/web/src/lib/ai-gateway/providers/model-settings.ts
• packages/db/src/schema-types.ts

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_{Reviewed by gpt-5.5-20260423 · 122,064 tokens}