Add commands to manage issue dependencies using the Gitea API: - `tea issues dependencies <index>` - list dependencies - `tea issues dependencies add <index> <dep>` - add a dependency - `tea issues dependencies remove <index> <dep>` - remove a dependency Supports cross-repo dependencies with owner/repo#index syntax. Supports all output formats (table, json, csv, etc.). Closes #4 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>