Initial commit. This repo is the source of truth for labdev workspace
templates — independent of the labdev binary, versioned per-template.

Repo conventions:
- One directory per template at the repo root (kebab-case name).
- Every template carries its own workspace.yaml, AGENTS.md, README.md,
  and docs/.
- Templates evolve independently of labdev; pin via per-template tags
  like ontex-vMAJOR.MINOR.PATCH.
- See docs/authoring.md for the full template-authoring guide.

Bootstrapped content:
- README.md          catalog of available templates + usage
- AGENTS.md          agent context for editing THIS repo
- docs/authoring.md  step-by-step template-authoring guide
- .gitignore
- ontex/             full Ontex POC template (43 files): Spring
                     Modulith backend + React/Vite frontend + Postgres
                     + Liquibase, with declarative gates and per-repo
                     AGENTS.md files