Initial frontend implementation

- React dashboard with Tailwind CSS v4
- Session-based authentication (Lucia patterns)
- API client with axios
- Project, Task, and Agent views
- Bun.serve() with HMR and API proxy
- Docker support

Co-Authored-By: Claude Sonnet 4.5 (1M context) <noreply@anthropic.com>

Dockerfile

@@ -0,0 +1,18 @@
+FROM oven/bun:1.3.6-alpine
+
+WORKDIR /app
+
+# Copy package files
+COPY package.json bun.lockb ./
+
+# Install dependencies
+RUN bun install --frozen-lockfile --production
+
+# Copy source code
+COPY . .
+
+# Expose port
+EXPOSE 3001
+
+# Start server
+CMD ["bun", "run", "start"]