Fix common issues in geographic data contributions to the CSC database. Use this skill whenever you need to fix, correct, repair, patch, or resolve issues in a data contribution or PR. Trigger on: "@copilot fix this", "auto-fix" label on issues, "can you fix", "please correct", "help me fix", "what's wrong with my PR", removing auto-managed fields, correcting country codes, fixing mismatched foreign keys, or formatting JSON. Also use when a PR has validation errors and you need to commit fixes directly. Read common-fixes.md in this directory for fix patterns and examples.