Summary

• Add anonymized account deletion feedback storage independent from the User table
• Accept optional deletion feedback on general, Google, and Apple account deletion endpoints
• Hash deleted-user emails and preserve deleted user id, social type, message, and timestamp
• Add focused controller/service test coverage for optional deletion feedback

Validation

• ./gradlew compileJava compileTestJava test --tests devkor.ontime_back.controller.UserAuthControllerTest

Note

• Full UserAuthServiceTest execution was previously blocked locally by a MySQL connection failure during Spring context startup, before test code executed.