feat(context): add claude-context-codespaces from jadecli-codespaces

[alex-jadecli]

Summary

Integrate context files from alex-jadecli/jadecli-codespaces into the jadecli monorepo.

Changes

• Add claude-context-codespaces/ directory with agent context files
• Disconnect from original jadecli-codespaces origin
• Add frontmatter markers (origin: codespaces) for searchability
• Update paths in generate_trees.zsh

New Structure

claude-context-codespaces/
├── context/              # Agent context files
│   ├── system-info.md    # Hardware/OS info
│   ├── config-summary.md # ~/.config summary
│   └── dotfiles-summary.md
├── trees/                # Directory tree cache (24h TTL)
│   ├── INDEX.md          # Directory index
│   └── *.md              # 60+ tree files
├── scaffolds/            # Code templates
│   └── mono_indexed_appends/
├── generate_trees.zsh    # Tree generation script
└── README.md

Test plan

• Files moved and committed
• Frontmatter added to context files
• generate_trees.zsh paths updated
• Verify tree generation works: ./claude-context-codespaces/generate_trees.zsh -a
• Search works: grep -l "origin: codespaces" **/*.md

Related

• Original repo: https://github.com/alex-jadecli/jadecli-codespaces
• Release: https://github.com/alex-jadecli/jadecli/releases/tag/v0.1.0

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