fix: keyboard stability, host-only analytics, and auto-reply dedupe

- record analytics/usage only in the host app; the extension no longer opens the
  SQLite queues, so hiding the keyboard cannot hold WAL locks (0xdead10cc)
- sync clipboard history writes across processes so deletes made on one side
  are not reverted by the other
- guard memory-relief reentrancy on controller and telemetry sides to break
  the recursive crash loop
- resolve credentials off the main thread and migrate legacy keys once per
  install, so Keychain reads cannot be caught in the suspend window
- gate Volcengine ASR ping completion to once (SIGTRAP on double resume)
- treat same-text captures as the same logical copy and dedupe auto actions
  by content fingerprint within 30s, stopping Universal Clipboard storms
- realign version line to 2.1.0 (build 110)

OSGKeyboardShared/Services/ClipboardSemanticAnalyzer.swift

@@ -328,6 +328,10 @@ public actor ClipboardSemanticAnalyzer {
     }
 
     public func analyze(_ sourceText: String) -> ClipboardSemanticAnalysis {
+        #if DEBUG
+        MemoryDeviceProbe.log("semantic.analyze.begin")
+        defer { MemoryDeviceProbe.log("semantic.analyze.end") }
+        #endif
         let text = sourceText.trimmingCharacters(in: .whitespacesAndNewlines)
         guard !text.isEmpty else {
             return emptyAnalysis()
@@ -1058,6 +1062,9 @@ public actor ClipboardSemanticAnalyzer {
         }
         let entry = ModelEntry(configuration: configuration, model: model)
         models[id] = entry
+        #if DEBUG
+        MemoryDeviceProbe.log("nlmodel.loaded.\(id)")
+        #endif
         return entry
     }
 
@@ -1129,6 +1136,9 @@ public actor ClipboardSemanticAnalyzer {
         }
         let entry = VerifierEntry(configuration: configuration, model: model)
         verifierModels[id] = entry
+        #if DEBUG
+        MemoryDeviceProbe.log("nlmodel.verifier.loaded.\(id)")
+        #endif
         return entry
     }