chore: clean up repo for public release

- Remove BMAD framework, IDE configs, dev screenshots, test files,
  internal docs, and backup files
- Rename keep-notes/ to memento-note/
- Update all references from keep-notes to memento-note
- Add Apache 2.0 license with Commons Clause (non-commercial restriction)
- Add clean .gitignore and .env.docker.example

memento-note/lib/ai/tools/index.ts

@@ -0,0 +1,15 @@
+/**
+ * Tools Index
+ * Side-effect imports register all tools into the registry.
+ */
+
+// Import all tools (side-effect registration)
+import './web-search.tool'
+import './note-search.tool'
+import './note-crud.tool'
+import './web-scrape.tool'
+import './url-fetch.tool'
+import './memory.tool'
+
+// Re-export registry
+export { toolRegistry, type ToolContext, type RegisteredTool } from './registry'