Update vision_analyzer.py

vision_analyzer.py

@@ -60,23 +60,33 @@ def log_message(message: str):
 
 
 # Initialize rarfile with correct paths
+import os
+import shutil
 import rarfile
-rarfile.UNRAR_TOOL = "unrar"  # Try system unrar if exists
-
-# Set alternative paths where unrar might be installed
-possible_unrar_paths = [
-    "/usr/bin/unrar",
-    "/usr/local/bin/unrar",
-    "/bin/unrar",
-    "/app/bin/unrar"
-]
 
-for path in possible_unrar_paths:
-    if os.path.exists(path):
-        rarfile.UNRAR_TOOL = path
-        break
+# Try to detect unrar
+unrar_path = shutil.which("unrar")
+
+# Fallback to common paths
+if not unrar_path:
+    possible_unrar_paths = [
+        "/usr/bin/unrar",
+        "/usr/local/bin/unrar",
+        "/bin/unrar",
+        "/app/bin/unrar"
+    ]
+    for path in possible_unrar_paths:
+        if os.path.isfile(path) and os.access(path, os.X_OK):
+            unrar_path = path
+            break
+
+# Assign to rarfile
+if unrar_path:
+    rarfile.UNRAR_TOOL = unrar_path
 else:
-    log_message("⚠️ System unrar not found - using Python implementation")
+    rarfile.UNRAR_TOOL = None  # Use built-in (limited) parser
+    print("⚠️ 'unrar' is not installed. Some RAR files may not extract properly.")
+
 
 # Attempt to install flash-attn
 try: