docs: Enhance MONOREPO_CONVERSION_PLAN.md with improved details

- Specify production-ready implementation details for sal-git
  package.
- Add a detailed code review and quality assurance process
  section.
- Include comprehensive success metrics and validation checklists
  for production readiness.
- Improve security considerations and risk mitigation strategies.
- Add stricter code review criteria based on sal-git's conversion.
- Update README with security configurations and environment
  variables.

git/Cargo.toml

@@ -13,6 +13,8 @@ redis = "0.31.0"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 rhai = { version = "1.12.0", features = ["sync"] }
+log = "0.4"
+url = "2.4"
 
 [dev-dependencies]
 tempfile = "3.5"