chore(workflow): add AI-assisted workflow commands and configurations

Add comprehensive workflow commands for AI-assisted development:
- Claude commands: analyze, clarify, plan
- Kilocode workflows: full feature development lifecycle
- Opencode commands: specification and implementation workflows
- Roo MCP configuration for tool integration

Update .gitignore to exclude .astro build cache directories.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

specs/001-users-pukpuk-dev/research.md

@@ -14,7 +14,7 @@
 
 ## Performance Goals
 
-**Decision**: Aim for a Google Lighthouse score of 90+ for Performance, Accessibility, Best Practices, and SEO.
+**Decision**: Aim for a Google Lighthouse score of 95+ for Performance, Accessibility, Best Practices, and SEO.
 
 **Rationale**: This is a widely accepted benchmark for web performance and user experience. Achieving these scores will ensure a fast and accessible website.
 
@@ -30,7 +30,7 @@
 
 ## Scale/Scope
 
-**Decision**: The initial scope is to migrate the existing content from the old site to the new Astro and Payload CMS setup. This includes ~50 blog posts and ~20 portfolio items.
+**Decision**: The initial scope is to migrate the existing content from the old site to the new Astro and Payload CMS setup. This includes approximately 35 blog posts and portfolio items combined.
 
 **Rationale**: This is based on the analysis of the existing sitemap and CMS structure.