fix: v2.7.4 — Changes matches JetBrains (#72), the chat says when Claude waits on a trust prompt (#73), Vietnamese Telex in Safari

- Changes (#72): a file git reports `MM` whose working copy equals HEAD again
  (a staged change since undone on disk) is no longer listed — JetBrains'
  GitChangesCollector drops it the same way. Mode-only changes stay listed.
  statusCounts (the dirty-tree safety checks) is unchanged.
- Chat (#73): Claude Code runs no hook before a folder is trusted, so a new
  pane's session has no row; the chat now says the session has not started,
  offers Open terminal, and asks before typing a message or /model //effort
  into the pane (an Enter would pick the trust prompt's "No, exit").
- Terminal: Safari + macOS's own Vietnamese Telex replaces the whole word on
  each key (insertReplacementText), which xterm.js ignores — only each word's
  first letter reached the pane. The edit is now sent as DELs + the new tail.
- Also: Ctrl+V pastes a screenshot into the terminal as a file path; the
  folder browser fallback lists files for a file field (`files=1`); the macOS
  native picker opens in front of the browser; a hidden tab is marked while a
  chat waits or once a turn ended; chat live line shows running calls, turn
  time and tokens, and "Done in …".

client/src/lib/api.ts

@@ -2970,14 +2970,20 @@ export const api = {
      * the Add Lane modal's folder browser. Browsers cannot expose absolute
      * filesystem paths from a native picker, so this drives a server-backed one.
      * @param path Absolute path to list; defaults server-side to the home dir.
+     * @param files List files too (`file: true`) — a file field's picker.
      * @returns `{ path, parent, entries }` — `parent` is null at the root.
      */
-    browse: (path?: string) =>
-      request<{
+    browse: (path?: string, files?: boolean) => {
+      const q = new URLSearchParams();
+      if (path) q.set("path", path);
+      if (files) q.set("files", "1");
+      const qs = q.toString();
+      return request<{
         path: string;
         parent: string | null;
-        entries: { name: string; path: string; isGitRepo: boolean }[];
-      }>(`/lanes/browse${path ? `?path=${encodeURIComponent(path)}` : ""}`),
+        entries: { name: string; path: string; isGitRepo: boolean; file?: boolean }[];
+      }>(`/lanes/browse${qs ? `?${qs}` : ""}`);
+    },
     /**
      * POST /api/lanes/pick-path — open the OS's own folder/file picker on the
      * server's desktop and wait for the user. Throws `.code` `EREMOTE` (not a