feat: Add debug output to Dockerfiles and .dockerignore

- Add .dockerignore to exclude node_modules, dist, and build artifacts
- Add pre/post build directory listings to diagnose dist not found issue
- Disable turbo cache temporarily with --force flag
- Add --verbosity=2 for more detailed turbo output

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.dockerignore

@@ -0,0 +1,58 @@
+# Dependencies (installed fresh in Docker)
+node_modules
+**/node_modules
+
+# Build outputs (built fresh in Docker)
+dist
+**/dist
+.next
+**/.next
+
+# TurboRepo cache
+.turbo
+**/.turbo
+
+# IDE
+.idea
+.vscode
+*.swp
+*.swo
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Environment files
+.env
+.env.*
+!.env.example
+
+# Credentials
+.admin-credentials
+
+# Testing
+coverage
+**/coverage
+
+# Logs
+*.log
+
+# Misc
+*.tsbuildinfo
+**/*.tsbuildinfo
+.pnpm-approve-builds
+.husky/_
+
+# Git
+.git
+.gitignore
+
+# Docker
+Dockerfile*
+docker-compose*.yml
+.dockerignore
+
+# Documentation (not needed in container)
+docs
+*.md
+!README.md

apps/api/Dockerfile

@@ -46,11 +46,25 @@ COPY --from=deps /app/packages/shared/node_modules ./packages/shared/node_module
 COPY --from=deps /app/packages/config/node_modules ./packages/config/node_modules
 COPY --from=deps /app/apps/api/node_modules ./apps/api/node_modules
 
+# Debug: Show what we have before building
+RUN echo "=== Pre-build directory structure ===" && \
+    echo "--- packages/config/typescript ---" && ls -la packages/config/typescript/ && \
+    echo "--- packages/shared (top level) ---" && ls -la packages/shared/ && \
+    echo "--- packages/shared/src ---" && ls -la packages/shared/src/ && \
+    echo "--- apps/api (top level) ---" && ls -la apps/api/ && \
+    echo "--- apps/api/src (exists?) ---" && ls apps/api/src/*.ts | head -5 && \
+    echo "--- node_modules/@mosaic (symlinks?) ---" && ls -la node_modules/@mosaic/ 2>/dev/null || echo "No @mosaic in node_modules"
+
 # Build the API app and its dependencies using TurboRepo
 # This ensures @mosaic/shared is built first, then prisma:generate, then the API
-# Cache TurboRepo build outputs for faster subsequent builds
-RUN --mount=type=cache,id=turbo-cache,target=/app/.turbo \
-    pnpm turbo build --filter=@mosaic/api
+# Disable turbo cache temporarily to ensure fresh build and see full output
+RUN pnpm turbo build --filter=@mosaic/api --force --verbosity=2
+
+# Debug: Show what was built
+RUN echo "=== Post-build directory structure ===" && \
+    echo "--- packages/shared/dist ---" && ls -la packages/shared/dist/ 2>/dev/null || echo "NO dist in shared" && \
+    echo "--- apps/api/dist ---" && ls -la apps/api/dist/ 2>/dev/null || echo "NO dist in api" && \
+    echo "--- apps/api/dist contents (if exists) ---" && find apps/api/dist -type f 2>/dev/null | head -10 || echo "Cannot find dist files"
 
 # ======================
 # Production stage

apps/web/Dockerfile

@@ -51,11 +51,23 @@ COPY --from=deps /app/apps/web/node_modules ./apps/web/node_modules
 ARG NEXT_PUBLIC_API_URL
 ENV NEXT_PUBLIC_API_URL=${NEXT_PUBLIC_API_URL}
 
+# Debug: Show what we have before building
+RUN echo "=== Pre-build directory structure ===" && \
+    echo "--- packages/config/typescript ---" && ls -la packages/config/typescript/ && \
+    echo "--- packages/shared (top level) ---" && ls -la packages/shared/ && \
+    echo "--- packages/ui (top level) ---" && ls -la packages/ui/ && \
+    echo "--- apps/web (top level) ---" && ls -la apps/web/
+
 # Build the web app and its dependencies using TurboRepo
 # This ensures @mosaic/shared and @mosaic/ui are built first
-# Cache TurboRepo build outputs for faster subsequent builds
-RUN --mount=type=cache,id=turbo-cache,target=/app/.turbo \
-    pnpm turbo build --filter=@mosaic/web
+# Disable turbo cache temporarily to ensure fresh build
+RUN pnpm turbo build --filter=@mosaic/web --force
+
+# Debug: Show what was built
+RUN echo "=== Post-build directory structure ===" && \
+    echo "--- packages/shared/dist ---" && ls -la packages/shared/dist/ 2>/dev/null || echo "NO dist in shared" && \
+    echo "--- packages/ui/dist ---" && ls -la packages/ui/dist/ 2>/dev/null || echo "NO dist in ui" && \
+    echo "--- apps/web/.next ---" && ls -la apps/web/.next/ 2>/dev/null || echo "NO .next in web"
 
 # Ensure public directory exists (may be empty)
 RUN mkdir -p ./apps/web/public