Add comprehensive CV verification checks and dashboard auto-refresh

- Add dashboard auto-refresh polling to update when processing completes
- Skip verification for freelance employers (but not contractors)
- Add incorporation date check (flags employment before company existed)
- Add dissolution date check (flags employment at dissolved companies)
- Add dormant company check (flags non-director roles at dormant companies)
- Add company size vs role check (flags senior roles at micro-entities)
- Add SIC code mismatch check (flags tech roles at non-tech companies)
- Add director verification against Companies House officers
- Add rapid career progression detection (3+ seniority jumps in <2 years)
- Add early career senior role detection (<2 years after education)
- Extend CompanyVerificationResult with flags and company data
- Add officers endpoint to Companies House client
- Fix null reference warning in Report.razor

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

src/TrueCV.Application/Interfaces/ICompanyVerifierService.cs

@@ -5,6 +5,7 @@ namespace TrueCV.Application.Interfaces;
 
 public interface ICompanyVerifierService
 {
-    Task<CompanyVerificationResult> VerifyCompanyAsync(string companyName, DateOnly? startDate, DateOnly? endDate);
+    Task<CompanyVerificationResult> VerifyCompanyAsync(string companyName, DateOnly? startDate, DateOnly? endDate, string? jobTitle = null);
     Task<List<CompanySearchResult>> SearchCompaniesAsync(string query);
+    Task<bool?> VerifyDirectorAsync(string companyNumber, string candidateName, DateOnly? startDate, DateOnly? endDate);
 }