- Add POST /admin/authorizations/auth-province-company for 省团队授权
- Add POST /admin/authorizations/auth-city-company for 市团队授权
- Add team uniqueness validation for all province/city authorization types
- Add domain events: AuthProvinceCompanyGrantedEvent, AuthCityCompanyGrantedEvent
- Add factory methods: createAuthProvinceCompanyByAdmin, createAuthCityCompanyByAdmin
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>