fix(story-mode): git lookups right after a save read "Claude checks what it saved"

From both round-11 readers: `git --git-dir=origin.git log -1 master;
git status -sb | head -1` after a push read "Claude looks around the
project", so a reader could not tell the save was verified. A look made
only of git lookups (log, status, show, ls-remote, …, piped to head or
tail) after a save in the same turn now reads "Claude checks what it
saved."

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

test/fixtures/story-corpus/errors-push-append.expected.json

@@ -205,7 +205,7 @@
       {
         "kind": "investigate",
         "ok": null,
-        "story": "Claude looks around the project.",
+        "story": "Claude checks what it saved.",
         "unaskedSave": false,
         "director": "Bash · git --git-dir=origin.git log --oneline master; git status -…",
         "balloon": null,
@@ -298,7 +298,7 @@
       {
         "kind": "investigate",
         "ok": null,
-        "story": "Claude looks around the project.",
+        "story": "Claude checks what it saved.",
         "unaskedSave": false,
         "director": "Bash · git --git-dir=origin.git log --oneline -1 master; git statu…",
         "balloon": null,

test/fixtures/story-corpus/long-turn-prompt-added.expected.json

@@ -313,7 +313,7 @@
       {
         "kind": "investigate",
         "ok": null,
-        "story": "Claude looks around the project.",
+        "story": "Claude checks what it saved.",
         "unaskedSave": false,
         "director": "Bash · git log --oneline",
         "balloon": "Step 16:",

test/story-mode.test.ts

@@ -1084,6 +1084,25 @@ describe('buildStoryPage', () => {
     expect(page.panels.map((p) => p.caption.story)).toContain('Claude changes run.sh; the tests pass.');
   });
 
+  it('git lookups after a save are Claude checking its save, and stay fast on a crafted command', () => {
+    const look = (saveFirst: boolean, command: string) =>
+      pageOf([
+        prompt('go'),
+        ...(saveFirst ? bash('b0', 'git commit -qm "add a"', 'Commit', '') : []),
+        ...bash('b1', command, 'Look', 'ok'),
+        end(1000),
+      ]).panels.find((p) => p.kind === 'investigate')?.caption.story;
+    expect(look(true, 'git --git-dir=origin.git log --oneline -1 master; git status -sb | head -1')).toBe(
+      'Claude checks what it saved.'
+    );
+    expect(look(false, 'git log --oneline; git status -sb | head -1')).toBe('Claude looks around the project.');
+    // The wording reads the event's display label (clipped), so a long command costs nothing; the
+    // panel's kind still comes from the whole command.
+    const start = performance.now();
+    expect(look(true, `git log ${'a '.repeat(100_000)}&& cat x`)).toBeTypeOf('string');
+    expect(performance.now() - start).toBeLessThan(1500);
+  });
+
   it('a short ending keeps the sentence that leaves something open', () => {
     const page = pageOf([
       prompt('run them'),