Add .gitignore, update paths, remove tracked artifacts

- Add .gitignore for __pycache__, *.db, *.log, nohup.out
- Update CLAUDE.md paths from /tmp/badge-admin to /home/gpsystem
- Remove cached/generated files from git tracking

via HAPI (https://hapi.run)

Co-Authored-By: HAPI <noreply@hapi.run>

.gitignore

@@ -0,0 +1,6 @@
+__pycache__/
+*.pyc
+*.db
+*.log
+nohup.out
+.claude/