docs: extend UAE PASS social sign-in provider documentation

Add comprehensive reference sections for the UAE PASS provider:
- Configuration fields reference table
- Available claims (standard + rawClaims) with SOP-level availability
- User account types (SOP1/SOP2/SOP3) with verification methods
- Visitor account details and profileType distinction
- Build and deploy instructions for custom Kratos fork
- Staging testing guide with links to UAE PASS docs
- UAE PASS-specific troubleshooting (missing attributes, logout redirects)
- Logout endpoint added to endpoints table

Author: suquant