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Implement peer-to-peer Kademlia DHT network for shared search result caching. This feature automatically reduces rate limits and improves query latency by transparently sharing cached results between all running DDGS instances. Changes include: - Full libp2p DHT client implementation with Kademlia routing - Persistent local SQLite cache with TTL expiration and bloom filters - Automatic DHT service integration with existing API server - Transparent cache integration for all existing search methods - Complete REST API endpoints for DHT operations and monitoring - New optional `dht` installation extra for dependencies - Updated documentation, CI workflow and test suite - Changed default API server port from 8000 to 4479 All existing code continues to work unchanged. DHT enables automatically when optional dependencies are installed, no user code changes required.
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Implement peer-to-peer Kademlia DHT network for shared search result caching. This feature automatically reduces rate limits and improves query latency by transparently sharing cached results between all running DDGS instances.
Changes include:
dhtinstallation extra for dependenciesAll existing code continues to work unchanged. DHT enables automatically when optional dependencies are installed, no user code changes required.