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.Application/Interfaces/IAcademicVerifierService.cs

@@ -0,0 +1,54 @@
+using RealCV.Application.Models;
+
+namespace RealCV.Application.Interfaces;
+
+/// <summary>
+/// Service for verifying academic researchers via ORCID
+/// </summary>
+public interface IAcademicVerifierService
+{
+    /// <summary>
+    /// Verify an academic researcher by ORCID ID
+    /// </summary>
+    Task<AcademicVerificationResult> VerifyByOrcidAsync(string orcidId);
+
+    /// <summary>
+    /// Search for researchers and verify by name
+    /// </summary>
+    Task<AcademicVerificationResult> VerifyByNameAsync(
+        string name,
+        string? affiliation = null);
+
+    /// <summary>
+    /// Search ORCID for researchers
+    /// </summary>
+    Task<List<OrcidSearchResult>> SearchResearchersAsync(
+        string name,
+        string? affiliation = null);
+
+    /// <summary>
+    /// Verify claimed publications
+    /// </summary>
+    Task<List<PublicationVerificationResult>> VerifyPublicationsAsync(
+        string orcidId,
+        List<string> claimedPublications);
+}
+
+public sealed record OrcidSearchResult
+{
+    public required string OrcidId { get; init; }
+    public required string Name { get; init; }
+    public string? OrcidUrl { get; init; }
+    public List<string>? Affiliations { get; init; }
+    public int? PublicationCount { get; init; }
+}
+
+public sealed record PublicationVerificationResult
+{
+    public required string ClaimedTitle { get; init; }
+    public required bool IsVerified { get; init; }
+    public string? MatchedTitle { get; init; }
+    public string? Doi { get; init; }
+    public int? Year { get; init; }
+    public string? Notes { get; init; }
+}

src/RealCV.Application/Interfaces/IGitHubVerifierService.cs

@@ -0,0 +1,36 @@
+using RealCV.Application.Models;
+
+namespace RealCV.Application.Interfaces;
+
+/// <summary>
+/// Service for verifying developer profiles and skills via GitHub
+/// </summary>
+public interface IGitHubVerifierService
+{
+    /// <summary>
+    /// Verify a GitHub profile and analyze activity
+    /// </summary>
+    Task<GitHubVerificationResult> VerifyProfileAsync(string username);
+
+    /// <summary>
+    /// Verify claimed programming skills against GitHub activity
+    /// </summary>
+    Task<GitHubVerificationResult> VerifySkillsAsync(
+        string username,
+        List<string> claimedSkills);
+
+    /// <summary>
+    /// Search for GitHub profiles matching a name
+    /// </summary>
+    Task<List<GitHubProfileSearchResult>> SearchProfilesAsync(string name);
+}
+
+public sealed record GitHubProfileSearchResult
+{
+    public required string Username { get; init; }
+    public string? Name { get; init; }
+    public string? AvatarUrl { get; init; }
+    public string? Bio { get; init; }
+    public int PublicRepos { get; init; }
+    public int Followers { get; init; }
+}

src/RealCV.Application/Interfaces/IInternationalCompanyVerifierService.cs

@@ -0,0 +1,49 @@
+using RealCV.Application.Models;
+
+namespace RealCV.Application.Interfaces;
+
+/// <summary>
+/// Service for verifying international companies via OpenCorporates
+/// </summary>
+public interface IInternationalCompanyVerifierService
+{
+    /// <summary>
+    /// Verify an international company
+    /// </summary>
+    Task<InternationalCompanyResult> VerifyCompanyAsync(
+        string companyName,
+        string? jurisdiction = null,
+        DateOnly? claimedStartDate = null,
+        DateOnly? claimedEndDate = null);
+
+    /// <summary>
+    /// Search for companies across all jurisdictions
+    /// </summary>
+    Task<List<OpenCorporatesSearchResult>> SearchCompaniesAsync(
+        string query,
+        string? jurisdiction = null);
+
+    /// <summary>
+    /// Get list of supported jurisdictions
+    /// </summary>
+    Task<List<JurisdictionInfo>> GetJurisdictionsAsync();
+}
+
+public sealed record OpenCorporatesSearchResult
+{
+    public required string CompanyName { get; init; }
+    public required string CompanyNumber { get; init; }
+    public required string Jurisdiction { get; init; }
+    public string? JurisdictionCode { get; init; }
+    public string? Status { get; init; }
+    public DateOnly? IncorporationDate { get; init; }
+    public string? OpenCorporatesUrl { get; init; }
+    public double? MatchScore { get; init; }
+}
+
+public sealed record JurisdictionInfo
+{
+    public required string Code { get; init; }
+    public required string Name { get; init; }
+    public string? Country { get; init; }
+}

src/RealCV.Application/Interfaces/IProfessionalVerifierService.cs

@@ -0,0 +1,52 @@
+using RealCV.Application.Models;
+
+namespace RealCV.Application.Interfaces;
+
+/// <summary>
+/// Service for verifying professional qualifications (FCA, SRA, etc.)
+/// </summary>
+public interface IProfessionalVerifierService
+{
+    /// <summary>
+    /// Verify if a person is registered with the FCA
+    /// </summary>
+    Task<ProfessionalVerificationResult> VerifyFcaRegistrationAsync(
+        string name,
+        string? firmName = null,
+        string? referenceNumber = null);
+
+    /// <summary>
+    /// Verify if a person is a registered solicitor with the SRA
+    /// </summary>
+    Task<ProfessionalVerificationResult> VerifySolicitorAsync(
+        string name,
+        string? sraNumber = null,
+        string? firmName = null);
+
+    /// <summary>
+    /// Search FCA register for individuals
+    /// </summary>
+    Task<List<FcaIndividualSearchResult>> SearchFcaIndividualsAsync(string name);
+
+    /// <summary>
+    /// Search SRA register for solicitors
+    /// </summary>
+    Task<List<SraSolicitorSearchResult>> SearchSolicitorsAsync(string name);
+}
+
+public sealed record FcaIndividualSearchResult
+{
+    public required string Name { get; init; }
+    public required string IndividualReferenceNumber { get; init; }
+    public string? Status { get; init; }
+    public List<string>? CurrentFirms { get; init; }
+}
+
+public sealed record SraSolicitorSearchResult
+{
+    public required string Name { get; init; }
+    public required string SraNumber { get; init; }
+    public string? Status { get; init; }
+    public string? CurrentOrganisation { get; init; }
+    public string? AdmissionDate { get; init; }
+}