feat: add complete frontend with React, Tailwind 4K, and Docker setup

- Vite + React 18 + TypeScript scaffolding
- Tailwind CSS configured for 4K dark theme (24px base)
- Three full-screen rotating views: Network Topology (D3.js),
  Kanban Board (Odoo tasks), Calendar (Odoo events)
- Hooks for data fetching, WebSocket, and view rotation
- Header with live clock and connection status
- Framer Motion fade transitions between views
- Docker Compose with backend (host network for nmap) and
  frontend (nginx proxy to backend API/WS)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,21 @@
+# Python
+__pycache__/
+*.pyc
+.venv/
+venv/
+*.egg-info/
+.pytest_cache/
+
+# Node
+node_modules/
+dist/
+
+# IDE
+.vscode/
+.idea/
+
+# OS
+.DS_Store
+
+# Claude
+.claude/