[Bug]: Plugin marketplace add fails with mixed-case names due to case normalization

[plcosta]

Operating System

macOS

Python Version

No response

Command That Failed

/plugin marketplace add AgriciDaniel/claude-ads

Full Error Output

Error:
  Failed to finalize marketplace cache                                                                                          
  ENOENT: no such file or directory, rename
  '/Users/my-user/.claude/plugins/marketplaces/AgriciDaniel-claude-ads' ->                                                       
  '/Users/my-user/.claude/plugins/marketplaces/agricidaniel-claude-ads'

Ad Platform and Account Context

No response

Expected Behavior

No response