diff --git a/apps/desktop/src-tauri/src/app_state.rs b/apps/desktop/src-tauri/src/app_state.rs
index de18022..ca5fd92 100644
--- a/apps/desktop/src-tauri/src/app_state.rs
+++ b/apps/desktop/src-tauri/src/app_state.rs
@@ -197,6 +197,7 @@ impl AppState {
             model_dynamic_repository: Mutex::new(None),
             video_generation_repository: Mutex::new(None),
             conversation_repository: Mutex::new(None),
+            outfit_photo_generation_repository: Mutex::new(None),
             performance_monitor: Mutex::new(PerformanceMonitor::new()),
             event_bus_manager: Arc::new(EventBusManager::new()),
         };
diff --git a/apps/desktop/src-tauri/src/business/services/tests/mod.rs b/apps/desktop/src-tauri/src/business/services/tests/mod.rs
index 6fa1266..b7e97d4 100644
--- a/apps/desktop/src-tauri/src/business/services/tests/mod.rs
+++ b/apps/desktop/src-tauri/src/business/services/tests/mod.rs
@@ -2,7 +2,6 @@ pub mod draft_parser_tests;
 pub mod cloud_upload_service_tests;
 pub mod watermark_tests;
 pub mod template_service_tests;
-pub mod template_foreign_key_test;
 
 // 测试工具函数
 pub mod test_utils {
diff --git a/apps/desktop/src-tauri/src/infrastructure/connection_pool.rs b/apps/desktop/src-tauri/src/infrastructure/connection_pool.rs
index c97cb82..426a8e6 100644
--- a/apps/desktop/src-tauri/src/infrastructure/connection_pool.rs
+++ b/apps/desktop/src-tauri/src/infrastructure/connection_pool.rs
@@ -231,18 +231,23 @@ impl ConnectionPool {
     fn try_acquire_from_pool(&self) -> Result<Option<Connection>> {
         let mut connections = self.connections.lock().map_err(|e| anyhow!("获取连接池锁失败: {}", e))?;
 
-        // 查找可用的连接
-        for pooled_conn in connections.iter_mut() {
+        // 清理过期连接
+        connections.retain(|conn| !conn.is_expired(self.config.idle_timeout));
+
+        // 查找可用的连接并移除它
+        let mut found_index = None;
+        for (i, pooled_conn) in connections.iter().enumerate() {
             if !pooled_conn.is_busy && !pooled_conn.is_expired(self.config.idle_timeout) {
-                pooled_conn.mark_used();
-                // 这里我们需要移除连接，但由于借用检查器的限制，我们需要重新设计
-                // 暂时返回 None，后续优化
+                found_index = Some(i);
                 break;
             }
         }
 
-        // 清理过期连接
-        connections.retain(|conn| !conn.is_expired(self.config.idle_timeout));
+        if let Some(index) = found_index {
+            let pooled_conn = connections.remove(index).unwrap();
+            println!("从连接池获取现有连接，剩余连接数: {}", connections.len());
+            return Ok(Some(pooled_conn.connection));
+        }
 
         // 如果没有可用连接且未达到最大连接数，创建新连接
         if connections.len() < self.config.max_connections {
@@ -259,6 +264,7 @@ impl ConnectionPool {
             }
         }
 
+        println!("连接池已满且无可用连接，当前连接数: {}", connections.len());
         Ok(None)
     }
 
@@ -271,6 +277,8 @@ impl ConnectionPool {
         stats.total_returned += 1;
         stats.active_connections = stats.active_connections.saturating_sub(1);
         stats.idle_connections += 1;
+
+        println!("连接已归还到池中，当前连接数: {}", connections.len());
     }
 
     /// 获取连接池统计信息
diff --git a/apps/desktop/src-tauri/src/infrastructure/database.rs b/apps/desktop/src-tauri/src/infrastructure/database.rs
index ce2740d..600a3a1 100644
--- a/apps/desktop/src-tauri/src/infrastructure/database.rs
+++ b/apps/desktop/src-tauri/src/infrastructure/database.rs
@@ -213,10 +213,10 @@ impl Database {
         } else {
             println!("🚨 强制启用默认连接池配置以避免死锁");
             let default_config = ConnectionPoolConfig {
-                max_connections: 10,        // 适中的最大连接数
-                min_connections: 3,         // 保持最小连接数
+                max_connections: 5,         // 减少最大连接数，SQLite不适合太多并发
+                min_connections: 2,         // 减少最小连接数
                 connection_timeout: Duration::from_secs(30), // 连接超时
-                acquire_timeout: Duration::from_secs(30), // 增加获取超时
+                acquire_timeout: Duration::from_secs(10), // 减少获取超时，快速失败
                 idle_timeout: Duration::from_secs(300),   // 5分钟空闲超时
             };