feat: Add additional verification APIs (FCA, SRA, GitHub, OpenCorporates, ORCID)

This adds five new free API integrations for enhanced CV verification:

- FCA Register API: Verify financial services professionals
- SRA Register API: Verify solicitors and legal professionals
- GitHub API: Verify developer profiles and technical skills
- OpenCorporates API: Verify international companies across jurisdictions
- ORCID API: Verify academic researchers and publications

Includes:
- API clients for all five services with retry policies
- Service implementations with name matching and validation
- Models for verification results with detailed flags
- Configuration options in appsettings.json
- DI registration for all services

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/RealCV.Infrastructure/DependencyInjection.cs

@@ -6,6 +6,7 @@ using Microsoft.Extensions.DependencyInjection;
 using Polly;
 using Polly.Extensions.Http;
 using RealCV.Application.Interfaces;
+using RealCV.Infrastructure.Clients;
 using RealCV.Infrastructure.Configuration;
 using RealCV.Infrastructure.Data;
 using RealCV.Infrastructure.ExternalApis;
@@ -74,6 +75,16 @@ public static class DependencyInjection
         services.Configure<LocalStorageSettings>(
             configuration.GetSection(LocalStorageSettings.SectionName));
 
+        // Configure options for additional verification APIs
+        services.Configure<FcaOptions>(
+            configuration.GetSection("FcaRegister"));
+
+        services.Configure<GitHubOptions>(
+            configuration.GetSection("GitHub"));
+
+        services.Configure<OpenCorporatesOptions>(
+            configuration.GetSection("OpenCorporates"));
+
         // Configure HttpClient for CompaniesHouseClient with retry policy
         services.AddHttpClient<CompaniesHouseClient>((serviceProvider, client) =>
             {
@@ -88,6 +99,26 @@ public static class DependencyInjection
             })
             .AddPolicyHandler(GetRetryPolicy());
 
+        // Configure HttpClient for FCA Register API
+        services.AddHttpClient<FcaRegisterClient>()
+            .AddPolicyHandler(GetRetryPolicy());
+
+        // Configure HttpClient for SRA Register API
+        services.AddHttpClient<SraRegisterClient>()
+            .AddPolicyHandler(GetRetryPolicy());
+
+        // Configure HttpClient for GitHub API
+        services.AddHttpClient<GitHubApiClient>()
+            .AddPolicyHandler(GetRetryPolicy());
+
+        // Configure HttpClient for OpenCorporates API
+        services.AddHttpClient<OpenCorporatesClient>()
+            .AddPolicyHandler(GetRetryPolicy());
+
+        // Configure HttpClient for ORCID API
+        services.AddHttpClient<OrcidClient>()
+            .AddPolicyHandler(GetRetryPolicy());
+
         // Register services
         services.AddScoped<ICVParserService, CVParserService>();
         services.AddScoped<ICompanyNameMatcherService, AICompanyNameMatcherService>();
@@ -98,6 +129,12 @@ public static class DependencyInjection
         services.AddScoped<IUserContextService, UserContextService>();
         services.AddScoped<IAuditService, AuditService>();
 
+        // Register additional verification services
+        services.AddScoped<IProfessionalVerifierService, ProfessionalVerifierService>();
+        services.AddScoped<IGitHubVerifierService, GitHubVerifierService>();
+        services.AddScoped<IInternationalCompanyVerifierService, InternationalCompanyVerifierService>();
+        services.AddScoped<IAcademicVerifierService, AcademicVerifierService>();
+
         // Register file storage - use local storage if configured, otherwise Azure
         var useLocalStorage = configuration.GetValue<bool>("UseLocalStorage");
         if (useLocalStorage)