Restructure cousteau.md from a verbose AI system prompt into a concise
human reference document describing the agent's character, role, and
behaviors. Point readers to the actual system prompt location and
condense content from ~571 to ~175 lines while preserving key
philosophy, personality, and operational details.
- Introduced `neo4j-schema-init.py` for creating the foundational schema for the personal knowledge graph used by multiple AI assistants.
- Implemented functionality for creating constraints, indexes, and sample nodes, along with comprehensive testing of the schema.
- Added `neo4j-validate.py` to perform validation checks on the Neo4j knowledge graph, including constraints, indexes, sample nodes, relationships, and junk data detection.
- Enhanced logging for better traceability and debugging during schema initialization and validation processes.
