Deploy from uv-workspace monorepos

Procedures living inside a uv-workspace monorepo can now be deployed without restructuring the repo, by pointing the CLI at the package directory.

• Added a package_directory setting on procedures so deployments resolve dependencies from a sub-package instead of the repo root.
• Updated the CLI and deployer to walk up from the package directory to find the workspace venv and lockfile.
• Consolidated the deploy pipeline behind a typed v1 manifest, with framework auto-detected from disk at runtime.