优化: 设置域体验完善

- 校验失败红框定位字段,保存反馈改持久化成功后
- 数值越界钳制,双提示队列化不再重叠
- 搜索防抖跳分类,托盘气泡文案进多语言

src/i18n/en/ai.ts

@@ -89,6 +89,19 @@ export default {
       truncated: 'truncated',
       failed: 'failed',
       meta: '{rounds} rounds · {tokens} tokens',
+      // S3: finished card is clickable to open the read-only trace (hover hint)
+      viewHint: 'Click to view execution trace',
+    },
+    // S3 sub-agent trace overlay (opened from the finished card, read-only simple render,
+    // discarded on close)
+    agentTrace: {
+      title: 'Sub-agent Trace',
+      empty: 'No messages recorded',
+      loadFail: 'Failed to load sub-agent trace',
+      roleUser: 'User',
+      roleAssistant: 'Assistant',
+      roleTool: 'Tool result',
+      roleSystem: 'System',
     },
   },
 }

src/i18n/en/aiChat.ts

@@ -292,5 +292,10 @@ export default {
     sendErrRateLimit: 'Rate limit reached, please retry later (error: {msg})',
     sendErrQuota: 'AI quota or balance insufficient, check your provider account (error: {msg})',
     sendErrNetwork: 'Network error or timeout, check your connection and retry (error: {msg})',
+
+    // ── UX-P3 chat polish additions ──
+    editEmptyBlocked: 'Edit content is empty, submission cancelled',
+    skillNoMatchQuery: 'No skill matches "{q}", send blocked',
+    backfillOverwriteConfirm: 'The input box has an unsent draft; backfilling will overwrite it. Continue?',
   },
 }

src/i18n/en/common.ts

@@ -24,5 +24,7 @@ export default {
       perPage: 'Per page',
       total: '{n} total',
     },
+    // Close-to-tray notice bubble (App.vue consumes the tray-hide-notice event; moved from hardcoded Chinese)
+    trayNoticeRunning: '{n} conversation(s) keep running in the background — the tray icon brings the window back anytime',
   },
 }

src/i18n/en/settings.ts

@@ -17,7 +17,15 @@ export default {
 
     // ===== Instant feedback (phase 5 SettingRow) =====
     savedHint: '✓ Saved',
+    // False-success family: red inline feedback for persist/IPC failure
+    saveFailedHint: '✗ Save failed',
     nextRoundBadge: 'Next message',
+    // Out-of-range clamp notices (concurrency 1-64 + per-conv ≤ global; temperature reports the corrected value)
+    toastConcurrencyClamped: 'Value out of range, corrected automatically (concurrency 1-{max}; per-conversation capped at global)',
+    toastTempClamped: 'Sampling temperature must be within 0-2, corrected to {v}',
+    // Prompt caching toggle save feedback (previously silent)
+    toastAnthropicCacheSaved: 'Prompt caching setting saved',
+    toastAnthropicCacheFail: 'Failed to save the prompt caching setting',
 
     // ===== Connection mgmt (phase 7: experimental badge, not wired to AI yet) =====
     experimentalBadge: 'Experimental · not wired to AI tools',

src/i18n/en/taskDetail.ts

@@ -91,5 +91,7 @@ export default {
     descSaveFailed: 'Failed to save description: {msg}',
     saveDesc: 'Save',
     cancelEdit: 'Cancel',
+    // S4 related conversations (reverse lookup of main sessions that ran task tools, click to jump)
+    relatedConversations: 'Conversations',
   },
 }