chore: update model names and gitea allowed-tools

- Use full model names (claude-haiku-4-5, etc.) in create-capability
- Add allowed-tools to gitea skill for tea/jq commands
- Set default model to opus in settings

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

skills/gitea/SKILL.md

@@ -3,6 +3,9 @@ name: gitea
 model: claude-haiku-4-5
 description: View, create, and manage Gitea issues and pull requests using tea CLI. Use when working with issues, PRs, viewing issue details, creating pull requests, adding comments, merging PRs, or when the user mentions tea, gitea, issue numbers, or PR numbers.
 user-invocable: false
+allowed-tools:
+  - Bash(tea*)
+  - Bash(jq*)
 ---
 
 # Gitea CLI (tea)