fix: improve API validation and error handling to prevent 400 Bad Request

docs: update README with Self-Healing mechanism and architecture diagram

feat: unify default user_id to global_user and support parameter passing

feat: implement embedding self-healing mechanism and background healer

docs: update architecture diagram and features to include Dream Engine

feat: Dream consolidation engine (auto-squash) (#3)

feat: force add OpenClaw skill files

feat: add OpenClaw skill and update gitignore

docs: comprehensive rewrite of README (EN + CN) with full parity

docs: finalized README updates with mermaid fix and acknowledgements

Merge pull request #2 from qqlove1234/deployment-fix

docs: add architecture diagram, config details, license and token efficiency benefits

docs: refine README with semantic search benefits and update install script defaults

docs: add one-click install script and ops cheatsheet

docs: add 'Why ClawMem' intro and benefits section