Fix Docker build: exclude .config file and simplify Dockerfile

.dockerignore

@@ -26,6 +26,9 @@ yarn-error.log*
 .DS_Store
 Thumbs.db
 
+# Infrastructure files (JuiceFS config, etc.)
+.config
+
 # Environment files
 .env
 .env.local

Dockerfile

@@ -19,9 +19,6 @@ RUN bun install --frozen-lockfile
 # Copy the rest of the application
 COPY . .
 
-# Create Prisma config directory to prevent config lookup error in Prisma 6
-RUN mkdir -p /app/.config/prisma
-
 # Set environment variables for build
 ENV NEXT_TELEMETRY_DISABLED=1
 ENV NODE_ENV=production