Scope npm install lock to bootstrap phase only

Frontend/scripts/compose-dev.sh

@@ -6,7 +6,6 @@ cd "$(dirname "$0")/.."
 # Serialize dependency install when multiple containers share the same workspace.
 LOCK_FILE=/app/Frontend/.npm-install.lock
 exec 9>"$LOCK_FILE"
-flock 9
 
 # Prevent path leakage between host Nuxt build cache and Docker runtime.
 # If any cache contains absolute /Users/... imports, Nitro dev runtime can break in /app.
@@ -15,6 +14,10 @@ find .nuxt -mindepth 1 -maxdepth 1 -exec rm -rf {} + || true
 find .output -mindepth 1 -maxdepth 1 -exec rm -rf {} + || true
 rm -rf node_modules/.cache node_modules/.vite
 
+# Only installation steps are serialized; runtime must not hold the lock.
+(
+  flock 9
+
   # Install deps (container starts from a clean image).
   # This workspace has mixed Apollo/Nuxt peer graphs; keep install deterministic in Docker.
   npm install --legacy-peer-deps
@@ -33,6 +36,7 @@ elif [ "$ARCH" = "x86_64" ] || [ "$ARCH" = "amd64" ]; then
   else
     npm rebuild sharp || true
   fi
+)
 
 # Wait until PostgreSQL is reachable before applying schema.
 until node -e "const u=new URL(process.env.DATABASE_URL||''); const net=require('net'); const s=net.createConnection({host:u.hostname,port:Number(u.port||5432)}); s.on('connect',()=>{s.end(); process.exit(0);}); s.on('error',()=>process.exit(1)); setTimeout(()=>process.exit(1), 1000);" ; do

Frontend/scripts/compose-worker.sh

@@ -6,6 +6,9 @@ cd "$(dirname "$0")/.."
 # Serialize dependency install when multiple containers share the same workspace.
 LOCK_FILE=/app/Frontend/.npm-install.lock
 exec 9>"$LOCK_FILE"
+
+# Only dependency bootstrap is serialized; worker runtime must not hold the lock.
+(
   flock 9
 
   # Worker container starts from clean image.
@@ -24,6 +27,7 @@ else
     npm rebuild sharp || true
   fi
   npx prisma generate
+)
 
 # Ensure DB is reachable before the worker starts consuming jobs.
 until node -e "const u=new URL(process.env.DATABASE_URL||''); const net=require('net'); const s=net.createConnection({host:u.hostname,port:Number(u.port||5432)}); s.on('connect',()=>{s.end(); process.exit(0);}); s.on('error',()=>process.exit(1)); setTimeout(()=>process.exit(1), 1000);" ; do