perf(deploy): parallel deploys, preserve build cache, prod-only runtime deps

Three changes to cut deploy time:
1. deploy.sh: Pi and VM deploy concurrently (wall time = max, not sum)
2. deploy.sh: Build cache capped at 2GB instead of nuked after 24h,
   so pnpm install layer is reused between deploys
3. Dockerfile: runtime stage uses --prod (skip devDeps). Moved tsx
   from devDependencies to dependencies since it's used in CMD.

Dockerfile

@@ -57,8 +57,8 @@ COPY packages/web/package.json packages/web/
 # Copy patches (referenced by pnpm-lock.yaml)
 COPY patches/ patches/
 
-# Install production dependencies only (plus tsx for running TS)
-RUN pnpm install --frozen-lockfile || pnpm install
+# Install production dependencies only (tsx is in server dependencies)
+RUN pnpm install --prod --frozen-lockfile || pnpm install --prod
 
 # Copy shared source (needed at runtime since server imports types directly)
 COPY packages/shared/ packages/shared/

deploy.sh

@@ -74,9 +74,9 @@ deploy() {
   # Clean up stale renamed containers left by failed recreates (e.g. "d420a6c00439_backspace")
   ssh "$PI_USER@$host" "cd $path && docker rm -f \$(docker ps -aq --filter 'name=_backspace' 2>/dev/null) 2>/dev/null; docker compose up -d --build"
 
-  # Prune old images and build cache to prevent disk bloat
+  # Prune old images; keep build cache capped at 2GB for fast rebuilds
   echo "  [4/4] Pruning stale Docker data..."
-  ssh "$PI_USER@$host" "docker image prune -af --filter 'until=24h' 2>/dev/null; docker builder prune -af --filter 'until=24h' 2>/dev/null" || true
+  ssh "$PI_USER@$host" "docker image prune -af --filter 'until=24h' 2>/dev/null; docker builder prune -f --keep-storage=2GB 2>/dev/null" || true
 
   echo ""
   echo "  Done: $name"
@@ -114,8 +114,9 @@ case "$TARGET" in
 
   all|both)
     PI_HOST=$(resolve_pi_host)
-    deploy "Pi" "$PI_HOST" "$PI_PATH"
-    deploy "Beta VM" "$BETA_HOST" "$BETA_PATH"
+    deploy "Pi" "$PI_HOST" "$PI_PATH" &
+    deploy "Beta VM" "$BETA_HOST" "$BETA_PATH" &
+    wait
     ;;
 
   *)

packages/server/package.json

@@ -26,7 +26,8 @@
     "fastify": "^4.28.1",
     "jsonwebtoken": "^9.0.2",
     "livekit-server-sdk": "^2.6.1",
-    "sharp": "^0.33.0"
+    "sharp": "^0.33.0",
+    "tsx": "^4.16.0"
   },
   "devDependencies": {
     "@types/bcryptjs": "^2.4.6",
@@ -35,7 +36,6 @@
     "@types/node": "^20.14.0",
     "@types/ws": "^8.18.1",
     "drizzle-kit": "^0.24.0",
-    "tsx": "^4.16.0",
     "typescript": "^5.4.0",
     "vitest": "^4.0.18"
   }

pnpm-lock.yaml

@@ -82,6 +82,9 @@ importers:
       sharp:
         specifier: ^0.33.0
         version: 0.33.5
+      tsx:
+        specifier: ^4.16.0
+        version: 4.21.0
     devDependencies:
       '@types/bcryptjs':
         specifier: ^2.4.6
@@ -101,9 +104,6 @@ importers:
       drizzle-kit:
         specifier: ^0.24.0
         version: 0.24.2
-      tsx:
-        specifier: ^4.16.0
-        version: 4.21.0
       typescript:
         specifier: ^5.4.0
         version: 5.9.3