feat(ai-gateway): flag reasoning direct BYOK models

[chrarnoldus]

Summary

• add a reasoning capability flag for direct BYOK models
• derive reasoning from models.dev metadata and assume it for OpenAI-compatible model discovery
• flag hardcoded recommended models and every BytePlus coding model
• leave supported_parameters unchanged until a post-merge sync has populated existing model records

Tests

• pnpm --filter web test -- --runInBand src/lib/ai-gateway/providers/direct-byok/sync-direct-byok.test.ts src/lib/ai-gateway/providers/direct-byok/index.test.ts
• pnpm --filter web typecheck
• targeted oxlint and oxfmt checks

[kilo-code-bot]

Code Review Summary

Status: No Issues Found | Recommendation: Merge

Executive Summary

Reviewed the incremental follow-up commit (1536ee18d..b38f5ebf0) that defers reasoning-based supported_parameters filtering and removes the now-obsolete conditional test; the change is a deliberate, correct simplification consistent with the PR description and introduces no bugs, security issues, or logic errors.

Files Reviewed (3 files)

• apps/web/src/lib/ai-gateway/providers/direct-byok/byteplus-coding.ts
• apps/web/src/lib/ai-gateway/providers/direct-byok/index.test.ts
• apps/web/src/lib/ai-gateway/providers/direct-byok/index.ts

Previous Review Summary (commit 1536ee1)

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

Previous review (commit 1536ee1)

Status: No Issues Found | Recommendation: Merge

Executive Summary

Reviewed the reasoning-capability flag addition across direct BYOK provider definitions, the dynamic sync parser, and model conversion logic; no bugs, security issues, or logic errors were found in the changed lines.

Files Reviewed (21 files)

• apps/web/src/lib/ai-gateway/providers/direct-byok/alibaba-token-plan.ts
• apps/web/src/lib/ai-gateway/providers/direct-byok/byteplus-coding.ts
• apps/web/src/lib/ai-gateway/providers/direct-byok/chutes-byok.ts
• apps/web/src/lib/ai-gateway/providers/direct-byok/crofai.ts
• apps/web/src/lib/ai-gateway/providers/direct-byok/inceptron-byok.ts
• apps/web/src/lib/ai-gateway/providers/direct-byok/index.test.ts
• apps/web/src/lib/ai-gateway/providers/direct-byok/index.ts
• apps/web/src/lib/ai-gateway/providers/direct-byok/kimi-coding.ts
• apps/web/src/lib/ai-gateway/providers/direct-byok/martian.ts
• apps/web/src/lib/ai-gateway/providers/direct-byok/morph.ts
• apps/web/src/lib/ai-gateway/providers/direct-byok/neurowatt.ts
• apps/web/src/lib/ai-gateway/providers/direct-byok/ollama-cloud.ts
• apps/web/src/lib/ai-gateway/providers/direct-byok/opencode-go.ts
• apps/web/src/lib/ai-gateway/providers/direct-byok/orcarouter.ts
• apps/web/src/lib/ai-gateway/providers/direct-byok/sync-direct-byok.test.ts
• apps/web/src/lib/ai-gateway/providers/direct-byok/sync-direct-byok.ts
• apps/web/src/lib/ai-gateway/providers/direct-byok/synthetic.ts
• apps/web/src/lib/ai-gateway/providers/direct-byok/types.ts
• apps/web/src/lib/ai-gateway/providers/direct-byok/xiaomi-token-plan-ams.ts
• apps/web/src/lib/ai-gateway/providers/direct-byok/xiaomi-token-plan-sgp.ts
• apps/web/src/lib/ai-gateway/providers/direct-byok/zai-coding.ts

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_{Reviewed by claude-sonnet-5 · Input: 28 · Output: 5K · Cached: 782.1K}

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