Built the KnowledgeDB Foundation

During the development of the ConversationDB-based RAG foundation, it became clear that conversations alone were insufficient for continuously managing and reusing knowledge across projects, companies, AIs, documents, and source code. This led to the need for a dedicated KnowledgeDB capable of transforming conversational evidence into structured knowledge. To address this, the Knowledge Foundation was established, including the domain model, database schema, and Knowledge Structuring AI. The new foundation provides a unified structure for managing users, companies, projects, tasks, AIs, documents, code, knowledge, and relationships, forming the core knowledge layer of the Knowledge OS.