v0.1.0 — vcs submodule layout and dotfiles project

Project submodule layout, the first onboarded project, and broader tooling.

Added

• vcs/<repo-name>/ submodule layout for projects: documented in the rules, scaffolded by sys.project.specify, and enforced by a new memos doctor project-layout check.
• The dotfiles project: living spec plus its zsh-configuration and repository-metadata-exclusion work, delivered end to end through the SDD task loop (submodule pinned at dotfiles v0.0.3).

Changed

• Migrated the dotfiles submodule from repo/ to vcs/dotfiles/ and purged the stale repo/ references across the rules and skills.

Tooling

• pre-commit now mirrors CI (ruff check, ruff format --check, mypy, memos doctor).
• Moved the uv workspace root to scripts/, consolidating .venv and tool caches under scripts/ instead of scattering them at the repo root.

Docs

• Added third-party references and attributions to the README; made import-existing-repo guidance explicit in sys.project.specify.

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See CHANGELOG.md for the full history (v0.0.1–v0.1.0).