* chore: require pnpm release age policy
- Add pnpm minimum release age 2880 and deny dependency build scripts.
- Require Node 24 and pnpm 11 across engines, CI, and version files.
- Refresh docs and lockfile for the runtime upgrade.
* ci: install pnpm after node setup
- Put Node 24 on PATH before pnpm/action-setup installs pnpm 11.
- Keep setup-node cache restore after pnpm is installed.
* ci: run javascript actions on node 24
- Opt CI and release workflows into GitHub JavaScript action execution on Node 24.
- Unblock pnpm/action-setup from installing pnpm 11.
* ci: avoid engine strict pnpm setup
- Remove the root engine-strict npm config.
- Drop the temporary Node 24 JavaScript action runtime override.
* test: use valid ca pem fixture
- Replace the fake CA text used in NODE_EXTRA_CA_CERTS tests with a valid PEM.
- Avoid Windows Node 24 aborting before the capture script runs.