Phase 1 MVP - Complete implementation

- Login with JWT and refresh token rotation
- Dashboard with projects cards
- ProjectView with TreeView navigation
- DocumentView with markdown editor and auto-save
- Tag management (create, assign, remove)
- Dark mode CSS variables
- Security fixes applied (logout to backend, createDocument endpoint)

node_modules/entities/dist/esm/internal/decode-shared.d.ts

@@ -0,0 +1,2 @@
+export declare function decodeBase64(input: string): Uint16Array;
+//# sourceMappingURL=decode-shared.d.ts.map