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/muggle-string/out/toString.js

@@ -0,0 +1,8 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.toString = void 0;
+function toString(segments) {
+    return segments.map(s => typeof s === 'string' ? s : s[0]).join('');
+}
+exports.toString = toString;
+//# sourceMappingURL=toString.js.map