fix(space): stabilize unfinished end session close

src/widgets/space-focus-hud/ui/EndSessionConfirmModal.tsx

@@ -1,6 +1,6 @@
 'use client';
 
-import { useEffect, useState } from 'react';
+import { useEffect, useRef, useState } from 'react';
 import { cn } from '@/shared/lib/cn';
 import type { CompletionResult } from '@/features/focus-session';
 
@@ -30,19 +30,25 @@ export const EndSessionConfirmModal = ({
   const [stage, setStage] = useState<EndSessionStage>('decision');
   const [isSubmitting, setIsSubmitting] = useState(false);
   const [result, setResult] = useState<CompletionResult | null>(null);
+  const resetTimerRef = useRef<number | null>(null);
 
   const trimmedGoal = currentGoal.trim() || '목표 없음';
 
   useEffect(() => {
     if (!open) {
-      setTimeout(() => {
+      resetTimerRef.current = window.setTimeout(() => {
         setStage('decision');
         setResult(null);
-      }, 500); // Reset after close animation
+      }, 500);
       setIsSubmitting(false);
       return;
     }
 
+    if (resetTimerRef.current !== null) {
+      window.clearTimeout(resetTimerRef.current);
+      resetTimerRef.current = null;
+    }
+
     const handleEscape = (e: KeyboardEvent) => {
       if (e.key === 'Escape' && !isSubmitting) {
         onClose();
@@ -50,9 +56,19 @@ export const EndSessionConfirmModal = ({
     };
 
     window.addEventListener('keydown', handleEscape);
-    return () => window.removeEventListener('keydown', handleEscape);
+    return () => {
+      window.removeEventListener('keydown', handleEscape);
+    };
   }, [open, isSubmitting, onClose]);
 
+  useEffect(() => {
+    return () => {
+      if (resetTimerRef.current !== null) {
+        window.clearTimeout(resetTimerRef.current);
+      }
+    };
+  }, []);
+
   const handleFinish = async () => {
     if (isSubmitting) return;
     setIsSubmitting(true);

src/widgets/space-workspace/ui/SpaceWorkspaceWidget.tsx

@@ -326,18 +326,21 @@ export const SpaceWorkspaceWidget = () => {
             if (pendingCompletionResult) {
               setPendingCompletionResult(null);
               setCurrentSessionThoughts([]);
+              void router.replace('/app');
               return true;
             }
 
             const completionResult = await controls.handleManualEnd();
             if (completionResult) {
-              setPendingCompletionResult(completionResult);
               setCurrentSessionThoughts([]);
+              void router.replace('/app');
+              return true;
             } else {
-              // If no result (cancelled or error), still try to go back if session is gone
+              if (!currentSession) {
-              if (!currentSession) router.replace('/app');
+                void router.replace('/app');
+              }
             }
-            return Boolean(completionResult);
+            return false;
           }}
         />
       ) : null}