* Update project creation and retrieval to use generated models
* Modify skill addition and listing to utilize generated models
* Refactor thought handling to incorporate generated models
* Adjust tool annotations to align with new model structure
* Update API calls in the UI to use new ResolveSpec-based endpoints
* Enhance stats retrieval logic to aggregate thought metadata
- Add explicit Ref: blocks at bottom of each DBML file for cross-file FK relationships
- files.dbml: stored_files → thoughts, projects
- skills.dbml: project_skills/project_guardrails → projects
- meta.dbml: chat_histories → projects
- Update Makefile to use the relspec merge workflow where applicable
- Regenerate 020_generated_schema.sql with proper cross-file constraints
Addresses review comment on PR #20
- Add schema/*.dbml covering all existing tables (001-019)
- Wire relspecgo via make generate-migrations target
- Add make check-schema-drift for CI drift detection
- Add schema/README.md documenting the DBML-first workflow
Closes#19
