Description

Deleting card doesn't delete related data (comments, attachments, history). Orphaned records accumulate, bloating database.

Expected Behavior

Cascade delete all related data when card deleted.

Actual Behavior

File: src/services/card.js
Only deletes card: deleteCard(cardId)

GSSoC Points Estimate: Level 1 (Bug/Data Integrity)

Suggested Labels

• gssoc:approved
• type:bug
• severity:medium
• area:data-integrity