ci: enhance Claude GitHub Actions and documentation

[codemonkey800]

Summary

This PR enhances the Claude GitHub Actions workflows and consolidates development documentation for the CryoET Data Portal project. The changes improve automated code review capabilities and provide comprehensive development guidance.

Changes

• CI/CD Enhancement: Updated Claude GitHub Actions workflows with comprehensive code review prompts tailored for CryoET Data Portal
• Documentation Consolidation: Migrated Claude commands to repository root and created comprehensive CLAUDE.md
• Frontend Documentation: Enhanced frontend-specific documentation with detailed command reference and development standards
• Workflow Configuration: Added context-aware review criteria for frontend (React/TypeScript) and Python code
• Developer Experience: Improved development workflow with better tooling and documentation structure

Key Improvements

GitHub Actions

• Added comprehensive code review prompts specific to scientific data platform requirements
• Enabled sticky comments for consistent PR feedback
• Configured allowed tools for development commands (pnpm, npm, git, python)
• Added sequential thinking MCP integration for better code analysis

Documentation Structure

• Consolidated all Claude commands and guidance in repository root
• Created comprehensive CLAUDE.md with project overview, commands, and architecture
• Enhanced frontend/CLAUDE.md with detailed command reference
• Documented testing setup, code quality standards, and development workflows

Testing

The changes primarily affect documentation and CI configuration. To test:

Frontend Development:

cd frontend && pnpm test
cd frontend && pnpm e2e
cd frontend && pnpm lint
cd frontend && pnpm type-check

Documentation:

cd docs && make html

Files Changed

• .github/workflows/claude-code-review.yml: Enhanced with CryoET-specific review criteria
• .github/workflows/claude.yml: Added comprehensive custom instructions and tooling
• CLAUDE.md: New comprehensive project documentation
• .claude/commands/: Migrated command files to repository root
• frontend/CLAUDE.md: Enhanced with detailed development guidance

🤖 Generated with Claude Code

[codemonkey800]

@jfoo1984 added you as an optional reviewer since you've been using claude code a bit longer and have experience setting these things up 🤣 🙏

[jfoo1984]

@jfoo1984 added you as an optional reviewer since you've been using claude code a bit longer and have experience setting these things up 🤣 🙏

thanks @codemonkey800! I haven't actually set up anything for claude beyond a claude.md, but this looks good, and seems like something that we should set up in other repos!

[codemonkey800]

@jfoo1984 added you as an optional reviewer since you've been using claude code a bit longer and have experience setting these things up 🤣 🙏

thanks @codemonkey800! I haven't actually set up anything for claude beyond a claude.md, but this looks good, and seems like something that we should set up in other repos!

no worries, thank you for still reviewing! I agree, we should definitely add this to other repos too