fix-react-doctor-finding

The fix is always: read → locate → apply the canonical pattern → re-run → commit.

Step 1 — read the report

npm run doctor:json
node -e "
  const r = require('./.react-doctor/report.json');
  console.log(r.summary.errorCount, 'err,', r.summary.warningCount, 'warn');
  r.diagnostics.forEach(d =>
    console.log(d.filePath + ':' + d.line + ':' + d.column + ' [' + d.severity + '] ' + d.rule + ' — ' + d.title)
  );
"

Step 2 — locate the file