Initial project setup with dependencies and deployment config

.env.example

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+# Server
+PORT=5100
+HOST=0.0.0.0
+
+# Redis (your existing silver-redis)
+REDIS_HOST=127.0.0.1
+REDIS_PORT=6379
+REDIS_PASSWORD=your_redis_password_here
+REDIS_DB=2
+
+# Storage
+UPLOAD_DIR=./uploads
+OUTPUT_DIR=./processed
+MAX_FILE_SIZE=20971520
+
+# Worker
+CONCURRENCY=2
+
+# Bull Board (admin dashboard)
+BULL_BOARD_USER=admin
+BULL_BOARD_PASS=changeme