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/@volar/language-core/package.json

@@ -0,0 +1,18 @@
+{
+	"name": "@volar/language-core",
+	"version": "2.4.15",
+	"license": "MIT",
+	"files": [
+		"**/*.js",
+		"**/*.d.ts"
+	],
+	"repository": {
+		"type": "git",
+		"url": "https://github.com/volarjs/volar.js.git",
+		"directory": "packages/language-core"
+	},
+	"dependencies": {
+		"@volar/source-map": "2.4.15"
+	},
+	"gitHead": "adcdcbc801b284cce3239fec231c7f4cebfd8688"
+}