update: pipeline, search, clip, embedding fixes

src/core/thumbnail/mod.rs

@@ -25,13 +25,11 @@ impl ThumbnailExtractor {
             .join("scripts")
             .join("thumbnail_extractor.py");
 
-        // 使用 venv 中的 Python，確保版本正確且隔離依賴
-        let venv_python = Path::new(env!("CARGO_MANIFEST_DIR"))
-            .join("venv")
-            .join("bin")
-            .join("python");
+        let python_path = std::env::var("MOMENTRY_PYTHON_PATH")
+            .unwrap_or_else(|_| "/opt/homebrew/bin/python3.11".to_string());
+        let python_bin = Path::new(&python_path);
 
-        let output = Command::new(venv_python)
+        let output = Command::new(python_bin)
             .arg(script_path)
             .arg(video_path)
             .arg(uuid)