Deja Vu v0.6.0: universal agent memory starter kit

[focaxisdev]

Summary

This PR prepares Deja Vu v0.6.0 as a copy-first, universal agent memory starter kit.

Deja Vu is now positioned as:

A 3-file memory system for any capable AI coding agent.

The protocol remains the spec, the starter-kit is the main product, and the CLI is an optional helper.

What changed

• Reworked README first screen for copy-first adoption
• Added starter-kit/ with AGENTS.md, memory templates, and per-agent prompts
• Added prompts for Codex, Claude Code, Cursor, Windsurf, ChatGPT, and Gemini CLI
• Added unified CLI commands:
  • deja-vu init
  • deja-vu doctor
  • deja-vu explain
• Added comparison, compatibility, diagram, launch copy, demo walkthrough, and v0.6.0 checklist docs
• Added GitHub Actions CI
• Split readonly source tests from pack/build tests
• Added repo-root dogfood Deja Vu memory in a separate commit
• Kept protocol version separate from package version

Validation

Local validation passed:

• npm run test:src:readonly
• npm run build
• npm run lint:memory
• npm run report:feedback
• npm run test:pack
• npm test
• node scripts/deja-vu.mjs init --dry-run
• node scripts/deja-vu.mjs doctor --json
• node scripts/deja-vu.mjs explain
• git diff --check

Notes

• Package version is not bumped yet
• Protocol remains v0.4
• No tag created
• No npm publish performed
• No GitHub release created

Release follow-up

Before final v0.6.0 release:

• Wait for GitHub Actions to pass
• Bump package version to 0.6.0
• Confirm release docs and changelog
• Consider adding a remote copy/download quickstart command
• Consider adding a docs/protocol.md pointer in root AGENTS.md
• Merge PR
• Tag v0.6.0
• Create GitHub release
• Publish npm package if desired