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/components/run/PaneGrid.tsx

@@ -201,6 +201,15 @@ const ITEM =
  *  (`lib/chatUi.ts`); a session with no id yet has no chat to show. The
  *  unsent prompt goes along: the terminal's input box into the chat's draft,
  *  the draft (its files as paths) back into the input box, never sent. */
+/** A session's chat switched to its terminal: the unsent prompt goes into
+ *  the CLI's input box, without Enter. */
+export function showTerminal(runId: string, sessionId: string) {
+  const draft = readChatDraft(sessionId);
+  const text = promptWithImages(draft.prompt, draft.images);
+  if (text && pasteToRun(runId, text)) writeChatDraft(sessionId, "", []);
+  setSessionChat(sessionId, false);
+}
+
 function ChatToggle({ run }: { run?: RunHandle }) {
   const { t } = useTranslation("lanes");
   const chat = useSessionChat(run?.sessionId);
@@ -215,20 +224,12 @@ function ChatToggle({ run }: { run?: RunHandle }) {
       title={label}
       aria-label={label}
       onClick={() => {
+        if (chat) return showTerminal(run.id, sessionId);
         const draft = readChatDraft(sessionId);
-        if (chat) {
-          const text = promptWithImages(draft.prompt, draft.images);
-          if (text && pasteToRun(run.id, text)) writeChatDraft(sessionId, "", []);
-        } else {
-          const text = takeRunInput(run.id);
-          if (text)
-            writeChatDraft(
-              sessionId,
-              [draft.prompt, text].filter(Boolean).join("\n"),
-              draft.images
-            );
-        }
-        setSessionChat(sessionId, !chat);
+        const text = takeRunInput(run.id);
+        if (text)
+          writeChatDraft(sessionId, [draft.prompt, text].filter(Boolean).join("\n"), draft.images);
+        setSessionChat(sessionId, true);
       }}
       className="flex h-6 w-6 items-center justify-center rounded text-fg-muted hover:bg-surface-4 hover:text-fg-primary"
     >