fix(v13): FIX-06 PersistentMemoryStore 全量移除 — 665行死代码清理

- persistent.rs 611→57行: 移除 PersistentMemoryStore struct + 全部方法 + 死 embedding global
- memory_commands.rs: MemoryStoreState→Arc<Mutex<()>>, memory_init→no-op, 移除 2 @reserved 命令
- viking_commands.rs: 移除冗余 PersistentMemoryStore embedding 配置段
- lib.rs: Tauri 命令 191→189 (移除 memory_configure_embedding + memory_is_embedding_configured)
- TRUTH.md + wiki/log.md 数字同步

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

desktop/src-tauri/src/viking_commands.rs

@@ -561,7 +561,7 @@ fn parse_uri(uri: &str) -> Result<(String, MemoryType, String), String> {
 }
 
 /// Configure embedding for semantic memory search
-/// Configures both SqliteStorage (VikingPanel) and PersistentMemoryStore (chat flow)
+/// Configures SqliteStorage (VikingStorage) embedding for FTS5 + semantic search.
 // @connected
 #[tauri::command]
 pub async fn viking_configure_embedding(
@@ -572,12 +572,11 @@ pub async fn viking_configure_embedding(
 ) -> Result<EmbeddingConfigResult, String> {
     let storage = get_storage().await?;
 
-    // 1. Configure SqliteStorage (VikingPanel / VikingCommands)
     let config_viking = crate::llm::EmbeddingConfig {
         provider: provider.clone(),
-        api_key: api_key.clone(),
-        endpoint: endpoint.clone(),
-        model: model.clone(),
+        api_key,
+        endpoint,
+        model,
     };
 
     let client_viking = crate::llm::EmbeddingClient::new(config_viking);
@@ -588,30 +587,7 @@ pub async fn viking_configure_embedding(
         .await
         .map_err(|e| format!("Failed to configure embedding: {}", e))?;
 
-    // 2. Configure PersistentMemoryStore (chat flow)
-    let config_memory = crate::llm::EmbeddingConfig {
-        provider: provider.clone(),
-        api_key,
-        endpoint,
-        model,
-    };
-    let client_memory = std::sync::Arc::new(crate::llm::EmbeddingClient::new(config_memory));
-
-    let embed_fn: crate::memory::EmbedFn = {
-        let client_arc = client_memory.clone();
-        std::sync::Arc::new(move |text: &str| {
-            let client = client_arc.clone();
-            let text = text.to_string();
-            Box::pin(async move {
-                let response = client.embed(&text).await?;
-                Ok(response.embedding)
-            })
-        })
-    };
-
-    crate::memory::configure_embedding_client(embed_fn);
-
-    tracing::info!("[VikingCommands] Embedding configured with provider: {} (both storage systems)", provider);
+    tracing::info!("[VikingCommands] Embedding configured with provider: {}", provider);
 
     Ok(EmbeddingConfigResult {
         provider,