test(pty): grant an owned Create pane whose title row is cropped

The targeted batching rerun on Claude Code 2.1.284 left its first report
Write unanswered for 1,372 s and timed out: the viewport began at the
pane's relative file row and rule, with the 'Create file' title cropped
above, so the preview parser rejected the file row as foreign. That row
must now resolve to the owned path and is skipped before the unchanged
line-by-line preview match. Replay controls reject another file, another
directory and an edited preview row.

test/helpers/plan-count-file-permission.ts

@@ -284,7 +284,11 @@ function currentCreatePreview(preview: string, r: any, config: string, cwd: stri
   if(event.name!=='Write'||`${event.sessionId}:${event.toolUseId}`!==r.pendingId||event.input?.file_path!==r.expected||
     Date.parse(event.timestamp)<startedAt||typeof event.input.content!=='string'||
     Buffer.byteLength(event.input.content)>MAX_WRITE_INPUT_BYTES) return false;
-  const source=event.input.content.split(/\r?\n/), rows=preview.split('\n');
+  // A crop can keep the pane's file row and rule above the preview while its
+  // "Create file" title scrolls away. That row must name the owned path.
+  const header=/^ {0,3}(?![1-9]\d*(?:[ \t]|\n))(\S[^\n]*)\n[╌─━]{3,}[ \t]*\n/.exec(preview);
+  if(header && path.resolve(cwd,header[1]!.trim())!==r.expected) return false;
+  const source=event.input.content.split(/\r?\n/), rows=preview.slice(header?.[0].length ?? 0).split('\n');
   const numbered:Array<{line:number;text:string}>=[];
   let leading='';
   for(const row of rows) {