docker: switch to runtime-only image using prebuilt dist/server-dist; no TS build in image

Dockerfile

@@ -1,25 +1,3 @@
-# Multi-stage build for production
-FROM node:22-alpine AS base
-
-# Install pnpm
-RUN npm install -g pnpm
-
-# Set working directory
-WORKDIR /app
-
-# Copy package files
-COPY package.json pnpm-lock.yaml pnpm-workspace.yaml ./
-
-# Install dependencies
-RUN pnpm install --frozen-lockfile
-
-# Copy source code
-COPY . .
-
-# Build the application
-RUN pnpm build
-
-# Production stage
 FROM node:22-alpine AS production
 
 # Install pnpm and required runtime tools
@@ -34,17 +12,12 @@ COPY package.json pnpm-lock.yaml pnpm-workspace.yaml ./
 # Install production dependencies only
 RUN pnpm install --frozen-lockfile --prod
 
-# Copy built application from base stage
-COPY --from=base /app/dist ./dist
-COPY --from=base /app/server-dist ./server-dist
-COPY --from=base /app/public ./public
+# Copy prebuilt application artifacts from repository (no TS build in image)
+COPY dist ./dist
+COPY server-dist ./server-dist
+COPY public ./public
 
-# Copy necessary files for runtime
-COPY --from=base /app/src/server/index.ts ./src/server/index.ts
-COPY --from=base /app/src/server/routes ./src/server/routes
-COPY --from=base /app/src/server/rpc ./src/server/rpc
-COPY --from=base /app/src/server/lib ./src/server/lib
-COPY --from=base /app/tsconfig.server.json ./tsconfig.server.json
+# Copy necessary runtime files
 COPY start.sh ./start.sh
 
 # Create non-root user for security