feat: add favorites table, CRUD commands, and Pinia store

src-tauri/src/commands.rs

@@ -677,3 +677,61 @@ pub fn get_project_budget_status(state: State<AppState>, project_id: i64) -> Res
         "percent_amount": project_row.1.map(|b| if b > 0.0 { (amount_used / b) * 100.0 } else { 0.0 })
     }))
 }
+
+// Favorite structs and commands
+#[derive(Debug, Serialize, Deserialize)]
+pub struct Favorite {
+    pub id: Option<i64>,
+    pub project_id: i64,
+    pub task_id: Option<i64>,
+    pub description: Option<String>,
+    pub sort_order: i32,
+}
+
+#[tauri::command]
+pub fn get_favorites(state: State<AppState>) -> Result<Vec<Favorite>, String> {
+    let conn = state.db.lock().map_err(|e| e.to_string())?;
+    let mut stmt = conn.prepare(
+        "SELECT id, project_id, task_id, description, sort_order FROM favorites ORDER BY sort_order"
+    ).map_err(|e| e.to_string())?;
+    let favs = stmt.query_map([], |row| {
+        Ok(Favorite {
+            id: Some(row.get(0)?),
+            project_id: row.get(1)?,
+            task_id: row.get(2)?,
+            description: row.get(3)?,
+            sort_order: row.get(4)?,
+        })
+    }).map_err(|e| e.to_string())?;
+    favs.collect::<Result<Vec<_>, _>>().map_err(|e| e.to_string())
+}
+
+#[tauri::command]
+pub fn create_favorite(state: State<AppState>, fav: Favorite) -> Result<i64, String> {
+    let conn = state.db.lock().map_err(|e| e.to_string())?;
+    conn.execute(
+        "INSERT INTO favorites (project_id, task_id, description, sort_order) VALUES (?1, ?2, ?3, ?4)",
+        params![fav.project_id, fav.task_id, fav.description, fav.sort_order],
+    ).map_err(|e| e.to_string())?;
+    Ok(conn.last_insert_rowid())
+}
+
+#[tauri::command]
+pub fn delete_favorite(state: State<AppState>, id: i64) -> Result<(), String> {
+    let conn = state.db.lock().map_err(|e| e.to_string())?;
+    conn.execute("DELETE FROM favorites WHERE id = ?1", params![id])
+        .map_err(|e| e.to_string())?;
+    Ok(())
+}
+
+#[tauri::command]
+pub fn reorder_favorites(state: State<AppState>, ids: Vec<i64>) -> Result<(), String> {
+    let conn = state.db.lock().map_err(|e| e.to_string())?;
+    for (i, id) in ids.iter().enumerate() {
+        conn.execute(
+            "UPDATE favorites SET sort_order = ?1 WHERE id = ?2",
+            params![i as i32, id],
+        ).map_err(|e| e.to_string())?;
+    }
+    Ok(())
+}