fix: keep tsx in Docker image — needed as Node ESM loader at runtime

tsx is listed in devDependencies but is required at runtime because
the server CMD uses --import tsx/dist/loader.mjs. The prod-only
reinstall was stripping it out, causing CrashLoopBackOff.

Removed the prod prune step — image size is controlled by the
selective COPY in the production stage instead.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: 2 people

Dockerfile

@@ -47,9 +47,8 @@ COPY . .
 RUN pnpm -r build \
   && test -f server/dist/index.js || (echo "ERROR: server build output missing" && exit 1)
 
-# Re-install with prod-only deps for a clean node_modules
-RUN rm -rf node_modules */node_modules packages/*/node_modules packages/adapters/*/node_modules packages/plugins/*/node_modules packages/plugins/examples/*/node_modules \
-  && pnpm install --frozen-lockfile --prod --ignore-scripts
+# Note: no prod prune — tsx is in devDependencies but needed at runtime
+# as the Node ESM loader. Image size is controlled by selective COPY below.
 
 # ── Stage 4: production ───────────────────────────────────────
 # Distroless-style minimal image. No shell, no package manager,