feat(settings): add quick messages management with drag-and-drop sorting

Adds a new "Quick Messages" settings page below Experts for managing reusable title/content snippets, backed by SQLite via SeaORM and exposed through both Tauri commands and the Axum web router. The list supports drag-to-reorder using the same motion/react Reorder pattern as the agent list, with translations provided across all 10 supported locales.

src-tauri/src/commands/mod.rs

@@ -9,6 +9,7 @@ pub mod model_provider;
 #[cfg(feature = "tauri-runtime")]
 pub mod notification;
 pub mod project_boot;
+pub mod quick_messages;
 pub mod system_settings;
 pub mod terminal;
 pub mod version_control;

src-tauri/src/commands/quick_messages.rs

@@ -0,0 +1,55 @@
+#[cfg(feature = "tauri-runtime")]
+use crate::db::error::DbError;
+#[cfg(feature = "tauri-runtime")]
+use crate::db::service::quick_message_service;
+#[cfg(feature = "tauri-runtime")]
+use crate::db::AppDatabase;
+#[cfg(feature = "tauri-runtime")]
+use crate::models::QuickMessageInfo;
+
+#[cfg(feature = "tauri-runtime")]
+#[cfg_attr(feature = "tauri-runtime", tauri::command)]
+pub async fn quick_messages_list(
+    db: tauri::State<'_, AppDatabase>,
+) -> Result<Vec<QuickMessageInfo>, DbError> {
+    quick_message_service::list(&db.conn).await
+}
+
+#[cfg(feature = "tauri-runtime")]
+#[cfg_attr(feature = "tauri-runtime", tauri::command)]
+pub async fn quick_messages_create(
+    db: tauri::State<'_, AppDatabase>,
+    title: String,
+    content: String,
+) -> Result<QuickMessageInfo, DbError> {
+    quick_message_service::create(&db.conn, &title, &content).await
+}
+
+#[cfg(feature = "tauri-runtime")]
+#[cfg_attr(feature = "tauri-runtime", tauri::command)]
+pub async fn quick_messages_update(
+    db: tauri::State<'_, AppDatabase>,
+    id: i32,
+    title: Option<String>,
+    content: Option<String>,
+) -> Result<QuickMessageInfo, DbError> {
+    quick_message_service::update(&db.conn, id, title, content).await
+}
+
+#[cfg(feature = "tauri-runtime")]
+#[cfg_attr(feature = "tauri-runtime", tauri::command)]
+pub async fn quick_messages_delete(
+    db: tauri::State<'_, AppDatabase>,
+    id: i32,
+) -> Result<(), DbError> {
+    quick_message_service::delete(&db.conn, id).await
+}
+
+#[cfg(feature = "tauri-runtime")]
+#[cfg_attr(feature = "tauri-runtime", tauri::command)]
+pub async fn quick_messages_reorder(
+    db: tauri::State<'_, AppDatabase>,
+    ids: Vec<i32>,
+) -> Result<(), DbError> {
+    quick_message_service::reorder(&db.conn, ids).await
+}