- Implemented Upstash Vector as a cloud-based storage solution for document chunks, replacing the local LanceDB option.
- Added auto-detection of storage mode based on environment variables for seamless integration.
- Updated the chat API to utilize the new retrieval mechanism, enhancing response accuracy and performance.
- Enhanced README with setup instructions for Upstash and updated environment variable requirements.
- Introduced new scripts and configurations for managing the vector index and API interactions.
- Added vector index building and serving capabilities to the docs chat.
- Introduced new scripts for generating embeddings and serving the chat API using vector search.
- Updated package.json with new commands for vector index operations.
- Enhanced README with instructions for the new RAG pipeline and legacy keyword pipeline.
- Removed outdated Vercel configuration file.
- Introduced a minimal documentation chatbot that builds a search index from markdown files and serves responses via an API.
- Added scripts for building the index and serving the chat API.
- Updated package.json with new commands for chat index building and serving.
- Created a new Vercel configuration file for deployment.
- Added a README for the docs chat prototype detailing usage and integration.
- Update @mariozechner/pi-agent-core, pi-ai, pi-coding-agent, pi-tui to 0.51.0
- Delete src/types/pi-coding-agent.d.ts (declared additionalExtensionPaths which SDK never supported)
- Fix ToolDefinition.execute signature (parameter order changed in 0.51.0)
- Remove dead additionalExtensionPaths from createAgentSession calls
- Update @mariozechner/pi-ai and pi-agent-core to 0.50.9
- Rename cacheControlTtl to cacheRetention with values none/short/long
- Add backwards compatibility mapping: 5m->short, 1h->long
- Remove dead OpenRouter check (uses openai-completions API)
- Default new configs to cacheRetention: short
