Add React Compiler report script

Reports which components and hooks React Compiler skipped optimizing, using
the Babel plugin's `logger` option and grouping the diagnostics by the
compiler's own ErrorCategory. Runs in the Lint workflow, where it writes the
report to the job summary. Always exits 0 - a metric, not a gate.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

.github/workflows/lint.yml

@@ -29,6 +29,7 @@ jobs:
             'typecheck:ios',
             'typecheck:android',
             'typecheck:web',
+            'react-compiler:report',
           ]
     steps:
       - name: ⬇️ Check out Git repository