feat(claude): Phase 3 - Content migration for Claude Code

[usrrname]

feat(claude): Phase 1 - Foundation for Claude Code supportAdd comprehensive Claude Code support infrastructure:

• Update renovate.json with weekly updates, auto-merge patch/minor,
  manual major review, and GitHub Actions pinning support
• Create .claude/ directory structure with settings, rules, hooks
• Add 4 enhanced personas (BasicBitch, Spellchuck, Godmode, SageDaddy)
• Transform 12 core and standards rules from .mdc to .md format
• Add security-block hook for dangerous command prevention
• Create .claudeignore template file
• Add AGENTS.md discoverability layer
• Build cursor-to-claude rule transformer utility

Refs: Phase 1 implementation plan
feat(cli): Phase 2 - CLI enhancements for IDE selectionAdd comprehensive IDE selection and enhanced CLI features:

• Add --ide flag for choosing cursor|claude|both
• Add interactive IDE selection prompt when --ide not specified
• Add --dry-run flag to preview downloads without writing files
• Add --validate flag for post-download file validation
• Create ide-selection.mjs utility for IDE choice handling
• Update download-files.mjs to support IDE-specific downloads
• Update commands.mjs with IDE-aware interactive mode
• Update CLI help text with examples for all new flags
• Support downloading both Cursor and Claude configurations

Refs: Phase 2 implementation plan
feat(claude): Phase 3 - Content migration for Claude CodeComplete content migration from Cursor to Claude Code format:

• Transform 6 test rules (playwright, vitest, testing-pyramid, etc.)
• Transform 9 utils rules (git-branch, release-, changelog-)
• Create .claude/commands/ with 6 slash commands:
  • /dev, /refactor, /version, /changelog, /commit, /testing-pyramid
• All rules converted from .mdc (Cursor) to .md (Claude) format
• Commands include usage guidelines, workflow steps, and agent recommendations

Refs: Phase 3 implementation plan