Fix tea CLI syntax for viewing issues

The tea CLI doesn't have a `view` subcommand - use `tea issues <number>`
directly instead of `tea issues view <number>`.

- Fix example in ARCHITECTURE.md
- Add clarifying tip in gitea skill to prevent this common mistake

Closes #2

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

skills/gitea/SKILL.md

@@ -138,6 +138,7 @@ tea issues -r owner/repo             # Specify repo directly
 
 ## Tips
 
+- **View single issue**: Use `tea issues <number>` (NOT `tea issues view <number>` - there is no `view` subcommand)
 - Always verify you're in the correct repository before running commands
 - Use `tea issues` to find issue numbers before viewing/editing
 - Reference issues in PR bodies with `Closes #N` for auto-linking