…with manual versioning

- Manually docker pull/run Maya tests (after freeing disk) instead of a job-level container, fixing pulls failing on larger Maya images
- Add Maya 2027 support; slim default matrix to 2024 only
- Bump setup-uv, cache, and checkout action pins
- Replace python-semantic-release (silently no-op'd on non-main branches) with a manual `version` input that bumps, tags, and creates a GitHub release
- Pin mkdocs<2; doc/comment cleanup

Adds scripts/build_module.py to stage a shippable .mod tree from src/,
install_module.py to install it locally, release.py to drive publishing,
and wires reusable-release.yml to the new flow. Also switches the repo
naming convention example from underscore to hyphen and drops the
redundant PYTHONPATH row from the generated .mod (Maya auto-adds
<root>/scripts).

The zip now ships <name>_drag_and_drop_installer.py instead of a bare
install_module.py, and reusable-release.yml's release notes reference
it by the resolved package name. Also adds a {{PROJECT_TITLE}}
placeholder (hyphens/underscores replaced with spaces) for the h3
headings in _README.md/CONTRIBUTING.md, distinct from {{PROJECT_NAME}}
which still needs to stay a raw URL-safe slug.

build_module.py now vendors locked runtime deps (via uv, prebuilt wheels
only) into per-platform/per-Python dirs with qualified .mod rows, when the
project declares runtime dependencies. The release workflow builds before
any push so failures are no-ops, passes inputs via env (shell-injection
safety), keeps uv.lock in sync with the version bump, and tolerates
re-dispatch after partial failure.

plugins: was nested under theme:, so search and mkdocstrings never
loaded; mkdocstrings options also updated from the old rendering/watch
keys. mkdocs.yml now carries a real site_name (same contract as
pyproject.toml) so mkdocs build works on the template repo itself;
initial_setup.py string-replaces the literal during setup. initial_setup
also gains a root parameter and docstrings so its logic is testable.

Static analysis and a new template-tests job now run unguarded (on this
repo too); only Maya Docker tests, release, and initial-setup stay
generated-repo-only. Static analysis widens from src/ to the whole repo.
tests/template/ covers initial_setup, build_module staging, and
release.py's version-bump logic with plain pytest; initial-setup.yml
deletes it in generated repos. Includes ruff cleanup of existing files.

Static analysis is ruff-only: mypy's value on cmds-heavy Maya code is
low (stringly-typed, returns Any) and it caused most of the tooling
friction. maya-stubs stays as a dev dep purely for IDE completion.

Template README gains its own CI/uv/ruff badges; mypy references removed
everywhere; documented commands updated to repo-wide scope; AGENTS files
describe the guarded/unguarded workflow split and the mkdocs real-value
contract.