Dependabot now scans per-function requirement directories instead
of the repo root. Admin override/open/clear commands accept an
optional day/night parameter for weekend day shift management.
- Set arm64 architecture globally for all Lambda functions
- Add explicit CloudWatch log groups with 60-day retention
- Add missing WeeklyPostFunctionArn to stack outputs
- Add Dependabot assignees for both ecosystems
- Add samconfig.toml.example for onboarding
