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.Domain/Entities/CompanyCache.cs

@@ -16,9 +16,18 @@ public class CompanyCache
     [MaxLength(64)]
     public string Status { get; set; } = string.Empty;
 
+    [MaxLength(64)]
+    public string? CompanyType { get; set; }
+
     public DateOnly? IncorporationDate { get; set; }
 
     public DateOnly? DissolutionDate { get; set; }
 
+    [MaxLength(64)]
+    public string? AccountsCategory { get; set; }
+
+    [MaxLength(256)]
+    public string? SicCodesJson { get; set; }
+
     public DateTime CachedAt { get; set; }
 }