plastic-store-provisioninglisted

# Add a Project Store Provision the intent store for a project that is already registered in `projects.yml` but whose `~/.plastic/projects/{slug}/store/` is missing. This is the standalone path; `plastic-project-creating` provisions the store for brand new projects. The provisioner is the single source of truth for store creation. It is pure filesystem and idempotent, so re-running is always safe. The project must already be registered (this skill does not edit `projects.yml`). ## 1. Resolve the slug The slug is the project's key under `projects` in `~/.plastic/projects.yml`. If the user names a project, map it to its slug. If the slug is missing from `projects.yml`, stop: the provisioner requires the project to already be registered. If ambiguous, list the registered slugs and ask which one. ## 2. Run the provisioner ```bash ruby ~/.plastic/scripts/provision-project-store <slug> ``` This creates `~/.plastic/projects/<slug>/store/` with `.gitkeep`, writes `INDEX.md` and `project.yml` only if they are missing, and never clobbers existing files. An unregistered slug exits non-zero with a clear error and creates nothing. ## 3. Register with QMD (separate, optional step) ```bash ruby ~/.plastic/scripts/qmd-sync register --store ~/.plastic/projects/<slug>/store ``` This is the only qmd mutation; the provisioner itself performs none. It no-ops when qmd is absent, so it is safe to run unconditionally. ## Scope - Provisioning and qmd registration are two distinct steps. D