Fix Docker build: include scripts directory and tsx runtime

Problem: Docker container failed to start with REGENERATE_GIFS=true
because scripts directory was not copied to production image and tsx
was not available at runtime.

Error:
  Cannot find module '/app/packages/backend/scripts/regenerate-all-gifs.ts'

Root cause:
1. Dockerfile only copied dist/ and prisma/ directories, not scripts/
2. tsx was in devDependencies, not available in production

Solution:
1. Add COPY scripts directory in Dockerfile (line 69)
2. Move tsx from devDependencies to dependencies in package.json
3. Update pnpm-lock.yaml to reflect dependency change

Changes:
- Dockerfile: Added COPY --from=backend-builder scripts directory
- package.json: Moved tsx@^4.7.0 to dependencies
- pnpm-lock.yaml: Updated lockfile

This allows the REGENERATE_GIFS environment variable to work correctly
in production, enabling automatic GIF regeneration on container startup.

Co-Authored-By: Auggie

Dockerfile

@@ -66,6 +66,7 @@ RUN pnpm install --frozen-lockfile
 # Copy backend build artifacts
 COPY --from=backend-builder /app/packages/backend/dist ./packages/backend/dist
 COPY --from=backend-builder /app/packages/backend/prisma ./packages/backend/prisma
+COPY --from=backend-builder /app/packages/backend/scripts ./packages/backend/scripts
 
 # Copy Prisma generated client (in pnpm workspace structure)
 # We need to copy the entire .pnpm directory to preserve the Prisma client

packages/backend/package.json

@@ -32,7 +32,8 @@
     "multer": "^1.4.5-lts.1",
     "zod": "^3.22.4",
     "helmet": "^7.1.0",
-    "express-rate-limit": "^7.1.5"
+    "express-rate-limit": "^7.1.5",
+    "tsx": "^4.7.0"
   },
   "devDependencies": {
     "@types/express": "^4.17.21",
@@ -48,7 +49,6 @@
     "@typescript-eslint/parser": "^6.19.0",
     "eslint": "^8.56.0",
     "prisma": "^5.8.1",
-    "tsx": "^4.7.0",
     "typescript": "^5.3.3"
   }
 }

pnpm-lock.yaml

@@ -59,6 +59,9 @@ importers:
       passport-microsoft:
         specifier: ^1.0.0
         version: 1.1.0
+      tsx:
+        specifier: ^4.7.0
+        version: 4.21.0
       zod:
         specifier: ^3.22.4
         version: 3.25.76
@@ -102,9 +105,6 @@ importers:
       prisma:
         specifier: ^5.8.1
         version: 5.22.0
-      tsx:
-        specifier: ^4.7.0
-        version: 4.21.0
       typescript:
         specifier: ^5.3.3
         version: 5.9.3