Add work bash utilities as git submodule to centralize and
version-control work development utilities.
Changes:
- Add submodule at .bash_aliases/hosts/work
- Add host loader with single-line import (sources init.sh)
- Company-specific config kept in submodule
- Simplified import chain: just source init.sh
The modules are now independently version-controlled and can be easily
shared across machines or used in other contexts.
Work modules include:
- init.sh: Single entry point for all modules
- config.sh: Company-specific environment configuration
- modules/gitlab.sh: GitLab MR workflow utilities
- modules/jira.sh: Jira issue management aliases
- modules/kubernetes-secrets.sh: K8s secret management
- modules/tenant-manager.sh: Tenant Manager dev tools
