chore(docs): add pr skill monitor loop entry to ERRORS.md

Author: PierreBrisorgueil

ERRORS.md

@@ -12,4 +12,5 @@ Use this file as a compact memory of recurring AI mistakes.
 ## Entries
 
 - [2026-02-22] functions: new or modified functions without JSDoc header -> always add JSDoc (description + `@param` for each arg + `@returns` for non-void return values and all async functions)
-- [2026-02-22] tests: never patch code to pass a test -> if a test is wrong, fix the test; if logic needs refactoring, refactor it
+- [2026-02-22] tests: never patch code to pass a test -> if a test is wrong, fix the test; if logic needs refactoring, refactor it
+- [2026-02-23] pr skill: stopping after `gh pr ready` -> always enter the monitor loop (wait CI → 3min grace → read feedback → iterate) until stop condition is met