Main coves client

test: update tests for vote viewer state changes master

- Update mock providers to remove VoteService dependency - Add ViewerState to test fixtures for feed and comments - Update FeedProvider tests for vote state initialization - Update CommentsProvider tests for recursive vote state init - Update VoteProvider tests for extractRkeyFromUri utility - Remove obsolete vote service test methods (deleteVote, getUserVotes) - Add generated mock files for auth service tests 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>