Fix: remove dist exclusion from .dockerignore

The **/dist with negation patterns wasn't working correctly.
Now all dist folders are included in Docker context.

Co-Authored-By: Claude <noreply@anthropic.com>

.dockerignore

@@ -5,18 +5,11 @@
 
 # Documentation
 README.md
-# Keep CLAUDE.md files
-!**/CLAUDE.md
 
 # Node modules (will be installed during build)
 node_modules
 **/node_modules
 
-# Build outputs - keep pre-built dist folders
-**/dist
-!trigo-web/app/dist
-!trigo-web/backend/dist
-
 # Test files
 tests
 **/tests
@@ -27,10 +20,8 @@ tests
 .vscode
 .idea
 *.log
-# Don't exclude *.lock - package-lock.json is needed for reproducible builds
 
-# Environment files - keep .env for build (vite needs it)
-# .env
+# Environment files - keep .env for build
 .env.local
 .env.*.local
 
@@ -43,3 +34,6 @@ temp/
 # OS files
 .DS_Store
 Thumbs.db
+
+# Don't exclude pre-built dist folders
+# We're NOT using **/dist because it breaks the negation patterns

Dockerfile

@@ -3,7 +3,7 @@ FROM node:20-slim
 # Set noninteractive installation
 ENV DEBIAN_FRONTEND=noninteractive
 
-# Build timestamp to force cache invalidation: 2026-01-12T20:20
+# Build timestamp to force cache invalidation: 2026-01-12T20:25
 
 # Install build dependencies
 RUN apt-get update && apt-get install -y \