OpenCode Walkthrough v0.0.5

What's New in 0.0.5

• Add custom OpenCode agent definition with docs
• Redesign agent chat panel with Copilot-style welcome UI
• Add agent/model selectors and context file support to panel
• Add run-inline-dialog promo screenshot and screenshots CI job
• Fix shell escaping in run inline prompt and add uninstall command
• Fix error detection in auth ls health check output
• Fix missing uninstall walkthrough step and update test assertion

Install

Download opencode-walkthrough-0.0.5.vsix and install via:
```
code --install-extension opencode-walkthrough-0.0.5.vsix
```

Full Changelog: v0.0.3...v0.0.5