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 …".

server/__tests__/git-diff-ops.test.js

@@ -143,6 +143,34 @@ describe("collectChanges — work range", () => {
     assert.equal((await gitFacts(LANE)).untracked, 2);
   });
 
+  // #72: a change staged and then undone in the working tree is `MM` in
+  // `git status` while the file on disk equals HEAD — JetBrains' Changes view
+  // (GitChangesCollector) drops it after a `git diff HEAD`, and so does this.
+  it("leaves out a staged change the working tree has reverted (#72)", async () => {
+    write(LANE, "a.txt", "one\nTWO\nthree\n");
+    g(LANE, "add", "a.txt");
+    write(LANE, "a.txt", "one\ntwo\nthree\n"); // back to HEAD's content
+    write(LANE, "keep.txt", "staged\n");
+    g(LANE, "add", "keep.txt");
+    write(LANE, "keep.txt", "staged, then edited\n"); // MM and still a change
+    assert.deepEqual(porcelain(LANE).sort(), ["MM a.txt", "MM keep.txt"]);
+
+    const out = await collectChanges(LANE, { range: "work" });
+    assert.deepEqual(
+      out.files.map((f) => f.path),
+      ["keep.txt"]
+    );
+  });
+
+  it("still lists a file whose only change is its mode, as JetBrains does", async () => {
+    fs.chmodSync(path.join(LANE, "a.txt"), 0o755);
+    const out = await collectChanges(LANE, { range: "work" });
+    assert.deepEqual(
+      out.files.map((f) => [f.path, f.added, f.deleted]),
+      [["a.txt", 0, 0]]
+    );
+  });
+
   it("returns hunks for every file in full mode", async () => {
     write(LANE, "a.txt", "one\nTWO\nthree\n");
     const out = await collectChanges(LANE, { range: "work", full: true });