feat: add Monaco editor, API error handling, and CI/CD

- Monaco Editor: script editor with syntax highlighting
- API: error handling with ApiError class and token management
- CI/CD: Gitea Actions workflow for build, Docker, and deploy
- Docker: multi-stage build with nginx
- nginx.conf: SPA fallback and API proxy

Dockerfile

@@ -0,0 +1,32 @@
+# Build stage
+FROM node:22-alpine AS builder
+
+WORKDIR /app
+
+# Install pnpm
+RUN corepack enable && corepack prepare pnpm@9 --activate
+
+# Copy package files
+COPY web/package.json web/pnpm-lock.yaml ./
+
+# Install dependencies
+RUN pnpm install --frozen-lockfile
+
+# Copy source
+COPY web/ ./
+
+# Build
+RUN pnpm build
+
+# Production stage
+FROM nginx:alpine
+
+# Copy built files
+COPY --from=builder /app/dist /usr/share/nginx/html
+
+# Copy nginx config
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+
+EXPOSE 80
+
+CMD ["nginx", "-g", "daemon off;"]