feat(sqlfile): add refresh, locate, and context menu to SQL Files panel (#2715)

* feat(sqlfile): add refresh, locate, and context menu to SQL Files panel

- Add per-folder Refresh and Reveal-in-file-manager buttons on each opened
  folder header, plus a Refresh-all button on the panel toolbar. Re-scan
  prunes expand state for paths that no longer exist after refresh.
- Add right-click context menus (via CustomContextMenu) for files, folders,
  folder headers, and the panel background: open, execute SQL file, reveal
  in file manager, copy path, expand/collapse all, refresh, remove folder.
- Highlight the selected tree row on click/right-click; clicking empty space
  clears the selection.
- Wire "Execute SQL file" from the panel into the App-level
  SqlFileExecutionDialog via connectionStore.sqlFileSource.filePath + a new
  prefillFilePath prop, so the dialog opens with the file preview preloaded.
- Add zh-CN/en strings under sqlFileTree.

* chore(i18n): autofill new translations

* fix(sqlfile): clear prefillFilePath on close, dedupe i18n keys

---------

Co-authored-by: wanqinghua <wanqhua@gmail.com>
Co-authored-by: dbx-i18n-bot <github-actions[bot]@users.noreply.github.com>
Co-authored-by: t8y2 <1156263951@qq.com>

apps/desktop/src/components/sql-file/SqlFileExecutionDialog.vue

@@ -27,6 +27,7 @@ const open = defineModel<boolean>("open", { default: false });
 const props = defineProps<{
   prefillConnectionId?: string;
   prefillDatabase?: string;
+  prefillFilePath?: string;
 }>();
 
 const store = useConnectionStore();
@@ -410,6 +411,11 @@ watch(
     if (connectionId.value) {
       loadDatabasesForConnection(connectionId.value);
     }
+    // When opened from the SQL Files panel with a pre-selected file, load its
+    // preview automatically so the user can review statements before running.
+    if (props.prefillFilePath) {
+      void loadPreview(props.prefillFilePath);
+    }
   },
   { immediate: true },
 );