Add bin/disinto CLI entry point with two subcommands:
- `disinto init <repo-url>`: bootstraps a new project by cloning the
repo, generating a projects/*.toml config, creating Codeberg labels
(backlog, in-progress, blocked, tech-debt, underspecified, vision,
action), generating a VISION.md template, and installing cron jobs
for dev-poll, review-poll, and gardener.
- `disinto status`: shows active sessions, backlog depth, and open PR
count for all configured projects.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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