- Move SubjectMessageSender, helpers, and test files from messaging-internal to messaging
- Update imports to use relative paths instead of @bitwarden/messaging imports
- Remove messaging-internal library entirely to eliminate circular dependency
- Update external references to use @bitwarden/messaging instead of @bitwarden/messaging-internal
- Fix tsconfig.lib.json rootDir conflict by removing cross-library file includes
Resolves the first incomplete TODO in Fix Nx Library Paths memory:
'Import from messaging-internal directly in messaging'
