feat: add Vision LLM integration (CLIP + Qwen3-VL cascade)

- Add Qwen3-VL dynamic management (start/stop/status CLI)
- Add CLIP + Qwen3-VL cascade detection strategy
- Add Vision CLI commands (vision start/stop/status, detect)
- Add cascade_vision processor module
- Add clip processor module
- Add qwen_vl_manager module

Changes:
- scripts/start_qwen3vl.sh, stop_qwen3vl.sh: Qwen3-VL management scripts
- src/core/vision/: Qwen3-VL manager module
- src/core/processor/cascade_vision.rs: CLIP + Qwen3-VL cascade logic
- src/core/processor/clip.rs: CLIP classification and detection
- src/api/clip_api.rs: CLIP API endpoints
- src/cli/vision.rs: Vision CLI implementation
- src/cli/args.rs: Add Vision and Detect commands
- src/main.rs: Integrate Vision CLI
- src/core/mod.rs: Add vision module
- src/core/processor/mod.rs: Add cascade_vision module

src/core/config.rs

@@ -92,6 +92,16 @@ pub static MEDIA_BASE_URL: Lazy<String> = Lazy::new(|| {
         .unwrap_or_else(|_| "https://wp.momentry.ddns.net".to_string())
 });
 
+pub static STORAGE_ROOT: Lazy<String> = Lazy::new(|| {
+    env::var("MOMENTRY_STORAGE_ROOT")
+        .unwrap_or_else(|_| "/Users/accusys/momentry/var/sftpgo/data".to_string())
+});
+
+pub static SERVE_BASE_URL: Lazy<String> = Lazy::new(|| {
+    env::var("MOMENTRY_SERVE_BASE_URL")
+        .unwrap_or_else(|_| "https://m5wp.momentry.ddns.net/files".to_string())
+});
+
 pub static SERVER_PORT: Lazy<u16> = Lazy::new(|| {
     env::var("MOMENTRY_SERVER_PORT")
         .unwrap_or_else(|_| "3002".to_string())