feat(ai): unify reply center and refresh keyboard AI features

- Merge invitation, task, blessing, clarification, and empathy actions
  into a single Reply flow, with three fixed, clearly labeled stance
  choices whenever user intent must not be guessed.
- Refine clipboard semantic routing with bilingual schedule,
  confirmation, and follow-up models, conservative language thresholds,
  and explicit-assignment guard for complaint-only text.
- Persist Apple account refresh state, harden session recovery, and
  surface durable account diagnostics across keyboard and app.
- Derive personal-style prompts through two-stage corpus evidence and
  apply real low-confidence ASR tendencies instead of neutral templates.
- Localize the new reply center, clipboard semantics, and personal-style
  surfaces in both English and Simplified Chinese.

OSGKeyboardShared/Services/AppGroupStore.swift

@@ -458,6 +458,9 @@ public struct AppGroupStore: @unchecked Sendable {
             // v9 consolidates playful and business reply into Reply. Do not
             // add Reply here: `sanitized` preserves it only when any reply ID
             // was enabled, so a user's explicit disabled state stays disabled.
+            // v10 applies the same canonical migration to Empathetic Reply.
+            // v11 folds invitation, task, blessing, and clarification replies
+            // into Reply. `sanitized` again preserves explicit disabled state.
             let additions = catalog.map(\.id).filter {
                 additionIDs.contains($0) && !decoded.enabledIDs.contains($0)
             }
@@ -483,7 +486,7 @@ public struct AppGroupStore: @unchecked Sendable {
         }
     }
 
-    private static let currentAgentSkillDefaultsMigrationVersion = 9
+    private static let currentAgentSkillDefaultsMigrationVersion = 11
 
     private static func decodeUserSkillCatalog(from defaults: UserDefaults) -> AIUserSkillCatalog {
         guard let data = defaults.data(forKey: AppGroupConfiguration.Keys.agentUserSkillCatalog) else {