Add AJAX support to optimize_models endpoint and add CLAUDE.md

- Added jsonify import to admin.py
- optimize_models now returns JSON for AJAX requests (X-Requested-With header)
- Returns structured {status, message} response for success and error cases
- Added CLAUDE.md project configuration file

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

CLAUDE.md

@@ -0,0 +1,9 @@
+# Claude Custom Instructions
+
+## Git Workflow
+Every time you complete a task or make changes to files, you MUST automatically commit those changes to Git before waiting for the user's next prompt.
+
+### Instructions:
+1. Always run `git add .` to stage your changes.
+2. Run `git commit -m "Auto-commit: [brief description of what was changed]"`
+3. Do not ask for permission to commit, just perform the git commit automatically.