Add glama.json configuration file

[escott-]

Summary

Describe the user-visible behavior and the public-boundary impact.

Validation

• cargo fmt --all --check
• cargo clippy --locked --workspace --all-targets -- -D warnings
• cargo test --locked --workspace --all-targets
• npm test
• python3 .github/scripts/public_boundary.py .

Data handling and compatibility

• The change does not add credentials, customer data, raw local paths, or private deployment topology.
• Any new collection or transmission of user data is documented in docs/data-handling.md.
• Existing npm executable aliases and MCP wire compatibility are preserved, or the change is explicitly marked breaking.

Contribution certification

• Every commit includes a Signed-off-by: trailer (git commit -s).