Release v0.5.0

Release v0.5.0

• deploy now surfaces machine-shape parameters as flags for Agent Runtime and Cloud Run.
• deploy adds a --service-name override.
• run prints a copy-pasteable resume command in the session footer.
• run no longer tears down a reused local server on a plain run.
• scaffold upgrade now builds the prior-version template via uvx.
• Skills setup/update no longer hangs on large npx output (a pipe-buffer deadlock).
• The project-root notice now only prints when the command actually changes directory.
• Fixed pre-existing inaccuracies in the bundled skills and generated project READMEs.
• Source code is now published to the public GitHub repo: https://github.com/google/agents-cli