feat: Add Jimeng image generation service and related functionality

- Implemented JimengService for image generation with API integration.
- Created OSSService for handling image uploads to S3.
- Developed PBService for managing PocketBase interactions.
- Added task management for image creation and downloading using BullMQ.
- Introduced routes for creating image generation tasks.
- Implemented logging and error handling for image processing.
- Added configuration management for Redis and other services.
- Created scripts for testing image generation and PocketBase integration.
- Updated package dependencies and added new scripts for worker management.

prompts/.env.example

@@ -0,0 +1,24 @@
+# AI Configuration
+KEVISUAL_NEW_API_KEY=your_api_key_here
+
+# Redis
+REDIS_HOST=localhost
+REDIS_PORT=6379
+REDIS_PASSWORD=
+REDIS_DB=0
+
+# jimeng API
+JIMENG_API_KEY=your_jimeng_api_key
+JIMENG_API_URL=https://jimeng-api.kevisual.cn/v1
+JIMENG_TIMEOUT=300000
+
+# S3
+S3_BUCKET=your_bucket_name
+S3_ACCESS_KEY_ID=your_access_key
+S3_ACCESS_KEY_SECRET=your_secret_key
+S3_REGION=cn-beijing
+S3_ENDPOINT=tos-cn-beijing.volces.com
+
+# Queue
+QUEUE_CONCURRENCY=5
+QUEUE_MAX_FAILED=10