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/rollup/dist/parseAst.d.ts

@@ -0,0 +1,4 @@
+import type { ParseAst, ParseAstAsync } from './rollup';
+
+export const parseAst: ParseAst;
+export const parseAstAsync: ParseAstAsync;