feat: OpenRouter baseURL + hybrid search perf instrumentation#2485
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monkeygold wants to merge 5 commits into
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feat: OpenRouter baseURL + hybrid search perf instrumentation#2485monkeygold wants to merge 5 commits into
monkeygold wants to merge 5 commits into
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…nk + utility scripts Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>
gateway.ts: - Pass baseURL override from config (enables OpenRouter as embedding provider) - Pass dimensions parameter to textEmbeddingModel() hybrid.ts: - Add exact-match LRU cache for repeated queries (5min TTL, 128 entries) - Add 5s timeout on embedding API calls (prevents OpenRouter outliers) - Add per-stage performance instrumentation (mode_resolve, keyword_search, embed_query, vector_search, rrf_fusion, cosine_rescore, post_fusion, dedup) Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>
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Summary
Context
These changes were made to support gbrain running with OpenRouter as the embedding API provider (Qwen3-Embedding-8B 1024d) instead of direct OpenAI. The performance instrumentation helps diagnose slow queries (~227ms typical breakdown).
Test plan
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