refactor: migrate vendor auth, profile, team, dashboard, settings to modules
Tenancy module (identity & organizational hierarchy):
- vendor_auth.py: login, logout, /me endpoints
- vendor_profile.py: vendor profile get/update
- vendor_team.py: team management, roles, permissions, invitations
Core module (foundational non-domain features):
- vendor_dashboard.py: dashboard statistics
- vendor_settings.py: localization, business info, letzshop settings
All routes auto-discovered via is_self_contained=True.
Deleted 5 legacy files from app/api/v1/vendor/.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Samir Boulahtit
da3f28849e