- Wire semantic chunker into inlineFileSmart() for large file context selection
- Use inlineFileSmart for knowledge file in buildExecuteTaskPrompt (TF-IDF relevance)
- Add compression_strategy and context_selection preferences with profile defaults
- Add resolveCompressionStrategy() and resolveContextSelection() resolvers
- Add cacheHitRate and compressionSavings to UnitMetrics
- Add aggregateCacheHitRate() for session-wide cache performance
- Update token-optimization.md with compression, chunking, and distillation docs
- Add 12 integration tests for optimization preferences and modules
