fix(modal): move isOpen check inside AnimatePresence for exit animations

- Remove early return 'if (!isOpen) return null' which prevented exit animations
- Always render AnimatePresence wrapper
- Gate modal content with {isOpen && (...)} inside AnimatePresence
- Now modal properly animates out when closing

Author: DevanshuNEU

frontend/src/components/IndexingProgressModal.tsx

@@ -81,17 +81,16 @@ export function IndexingProgressModal({
     onRetry?.()
   }
 
-  if (!isOpen) return null
-
   return (
     <AnimatePresence>
-      <motion.div
-        initial={{ opacity: 0 }}
-        animate={{ opacity: 1 }}
-        exit={{ opacity: 0 }}
-        className="fixed inset-0 z-50 flex items-center justify-center bg-black/60 backdrop-blur-sm"
-        onClick={handleClose}
-      >
+      {isOpen && (
+        <motion.div
+          initial={{ opacity: 0 }}
+          animate={{ opacity: 1 }}
+          exit={{ opacity: 0 }}
+          className="fixed inset-0 z-50 flex items-center justify-center bg-black/60 backdrop-blur-sm"
+          onClick={handleClose}
+        >
         <motion.div
           initial={{ scale: 0.95, opacity: 0 }}
           animate={{ scale: 1, opacity: 1 }}
@@ -190,7 +189,8 @@ export function IndexingProgressModal({
             )}
           </div>
         </motion.div>
-      </motion.div>
+        </motion.div>
+      )}
     </AnimatePresence>
   )
 }