feat: complete Scrum-manager MVP — dark-themed multi-user task manager

- Login with role-based auth (CTO/Manager/Employee)
- Calendar view (month/week) with task chips and quick-add
- Kanban board with status columns
- Sortable list view with action menus
- Task detail drawer with subtasks, comments, activity
- Add task modal with validation
- Dashboard with stats, workload, priority breakdown
- Team tasks grouped by assignee
- Reports page with recharts (bar, pie, line, horizontal bar)
- Members page with invite modal
- Search and assignee filter across views
- ErrorBoundary for production error handling
- Full dark design system via index.css

tsconfig.node.json

@@ -0,0 +1,26 @@
+{
+  "compilerOptions": {
+    "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.node.tsbuildinfo",
+    "target": "ES2023",
+    "lib": ["ES2023"],
+    "module": "ESNext",
+    "types": ["node"],
+    "skipLibCheck": true,
+
+    /* Bundler mode */
+    "moduleResolution": "bundler",
+    "allowImportingTsExtensions": true,
+    "verbatimModuleSyntax": true,
+    "moduleDetection": "force",
+    "noEmit": true,
+
+    /* Linting */
+    "strict": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "erasableSyntaxOnly": true,
+    "noFallthroughCasesInSwitch": true,
+    "noUncheckedSideEffectImports": true
+  },
+  "include": ["vite.config.ts"]
+}