v1.3.2

What's Changed

Added

• RAG hybrid retrieval pipeline: 4-stage pipeline — query transformation, hybrid retrieval (vector + keyword via RRF), LLM-based reranking, configurable threshold/top-K filtering
• Full-text search index: GIN tsvector index for keyword-based document retrieval
• RAG configuration: Environment-configurable RAG parameters
• Rerank API support: LLM-based passage reranking in OpenAI-compatible client

Changed

• RAG code quality: Decomposed hybridRetrieve into focused sub-functions; extracted testable pure functions
• SQL literal deduplication: Constants for repeated SQL where clauses
• golangci-lint integration: Added to make lint pipeline; fixed errcheck warnings

Fixed

• SonarCloud quality gate: Resolved duplicated literals, cognitive complexity, and coverage issues
• Test coverage: Comprehensive tests for RAG service, config package, and OpenAI client rerank

Full Changelog: v1.3.1...v1.3.2