fix(audit): 修复深度审计 P1/P2 问题 — 记忆统一、持久化、前端适配

H3: 重写 memory_commands.rs 统一到 VikingStorage 单一存储，移除双写
H4: 心跳引擎 record_interaction() 持久化到 VikingStorage，启动时恢复
M4: 反思结果/状态持久化到 VikingStorage metadata，重启后自动恢复
- HandApprovalModal import 修正 (handStore 替代 gatewayStore)
- kernel-client.ts 幽灵调用替换为 kernel_status
- PersistentMemoryStore dead_code warnings 清理
- 审计报告和 README 更新至 v0.6.3，完成度 58%→62%

desktop/src-tauri/src/memory/mod.rs

@@ -14,7 +14,7 @@ pub mod crypto;
 
 // Re-export main types for convenience
 pub use persistent::{
-    PersistentMemory, PersistentMemoryStore, MemorySearchQuery, MemoryStats,
-    generate_memory_id, configure_embedding_client, is_embedding_configured,
+    PersistentMemory, PersistentMemoryStore, MemoryStats,
+    configure_embedding_client, is_embedding_configured,
     EmbedFn,
 };

desktop/src-tauri/src/memory/persistent.rs

@@ -143,6 +143,7 @@ pub struct PersistentMemoryStore {
     conn: Arc<Mutex<SqliteConnection>>,
 }
 
+#[allow(dead_code)] // Legacy: operations migrated to VikingStorage, kept for backward compat
 impl PersistentMemoryStore {
     /// Create a new persistent memory store
     pub async fn new(app_handle: &tauri::AppHandle) -> Result<Self, String> {
@@ -497,6 +498,7 @@ impl PersistentMemoryStore {
 }
 
 /// Generate a unique memory ID
+#[allow(dead_code)] // Legacy: kept for potential migration use
 pub fn generate_memory_id() -> String {
     let uuid_str = Uuid::new_v4().to_string().replace("-", "");
     let short_uuid = &uuid_str[..8];