[surlymochan]

Relaunch prep for v0.2.0, the first npm release.

Changed

• npm package renamed to @surlymochan/openflow. The unscoped openflow name is taken by an unrelated package. The CLI is still xflow. Install docs and the CLI's copy-paste commands are updated to match.
• package.json now has repository, homepage, bugs, keywords, author, engines.node >= 22.5 (needed for node:sqlite) and a public publishConfig. The version is bumped to 0.2.0.
• README rewritten: problem statement, a demo GIF recorded from a real CLI run (a faked red TDD proof gets rejected), a 3-minute start, single-gate usage, and collapsible capability and docs tables.
• Docs: CHANGELOG.md is new, and RELEASE_NOTES.md has a 0.2.0 section.

Fixed

• agent_invoke EPIPE crash: it no longer throws an uncaught EPIPE when an agent CLI exits before reading its stdin prompt. This caused intermittent heavy-atoms test failures.
• xflow serve: its fallback message no longer links to an unpublished repository.

Verification (local, Node 22)

• npm test: 275 passed, 1 skipped, 0 failed (two full runs).
• npm run drift:scan: 9/9.
• npm publish --dry-run: 188 files, about 323 kB. The demo GIF is excluded from the package.
• Installing the packed tarball into an empty project works: xflow init, goal set, doctor and workflow validate yolo all pass.