feat(db): add optional pricing field to CustomLlmDefinitionSchema

[kilo-code-bot]

Summary

• Adds an optional pricing field to CustomLlmDefinitionSchema in packages/db/src/schema-types.ts
• Introduces CustomLlmPricingSchema with prompt, completion, and optional input_cache_read / input_cache_write string fields — all in dollars per token, matching the OpenRouter pricing convention (e.g. "0.000001" = $1 per million tokens)
• Updates convert() in listAvailableCustomLlms.ts to use the stored pricing values when present, falling back to '0.0000000' when not set
• input_cache_write is also now surfaced in the converted OpenRouter model shape (it was previously absent)

Verification

• Reviewed changes manually; schema and conversion logic are consistent with the existing OpenRouter pricing patterns
• Full typecheck could not be run in this environment (tsgo not found)

Visual Changes

N/A

Reviewer Notes

All price fields follow the OpenRouter convention of decimal strings (dollars per token, not microdollars). The fallback '0.0000000' preserves existing behaviour for models without pricing defined.

[kilo-code-bot]

Code Review Summary

Status: No Issues Found | Recommendation: Merge

Files Reviewed (2 files)

• packages/db/src/schema-types.ts
• src/lib/custom-llm/listAvailableCustomLlms.ts

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_{Reviewed by gpt-5.4-20260305 · 267,063 tokens}

[chrarnoldus]

my hope is evals will then show cost