fix: update root Dockerfile for HF Spaces deployment

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Dockerfile

@@ -1,42 +1,49 @@
-# WidgeTDC Backend - Fixed for Hugging Face Spaces
+# WidgeTDC Backend - Hugging Face Spaces
 FROM node:20-alpine AS builder
 
 WORKDIR /app
 
-# Copy package files first for optimal caching
+# Copy root workspace config
 COPY package*.json ./
+COPY tsconfig.base.json ./
+
+# Copy workspace packages (needed for workspace:* resolution)
+COPY packages/domain-types ./packages/domain-types/
+COPY packages/mcp-types ./packages/mcp-types/
+
+# Copy backend package.json and prisma
 COPY apps/backend/package*.json ./apps/backend/
-COPY packages/domain-types/package*.json ./packages/domain-types/
-COPY packages/mcp-types/package*.json ./packages/mcp-types/
+COPY apps/backend/prisma ./apps/backend/prisma/
 
-# Install all dependencies
-RUN npm ci --production
-RUN npm install -D tsx typescript @types/node @types/express @types/ws esbuild
+# Install dependencies with workspace resolution
+RUN npm ci
 
-# Copy source code
-COPY . .
+# Generate Prisma client
+RUN cd apps/backend && npx prisma generate
 
-# Copy Prisma schema
-COPY apps/backend/prisma ./prisma
-# Build packages
+# Copy backend source code and tsconfig
+COPY apps/backend/src ./apps/backend/src/
+COPY apps/backend/tsconfig.json ./apps/backend/
+
+# Build shared packages first
 RUN cd packages/domain-types && npm run build
 RUN cd packages/mcp-types && npm run build
 
-# Fix: Build backend with proper externalization
+# Build backend
 RUN cd apps/backend && npm run build-fixed
 
-# Final stage
+# Final stage - minimal production image
 FROM node:20-alpine
-WORKDIR /app/apps/backend
+WORKDIR /app
 
-# Copy only necessary files
+# Copy built artifacts
 COPY --from=builder /app/apps/backend/dist ./dist
 COPY --from=builder /app/apps/backend/package.json ./
-COPY --from=builder /app/prisma ./prisma
+COPY --from=builder /app/node_modules ./node_modules
 
-# Environment configuration
+# Environment
 ENV NODE_ENV=production
 ENV PORT=7860
 
 EXPOSE 7860
-CMD ["node", "dist/index.js"]
+CMD ["node", "dist/index.js"]