fix: Contract, TaxProfile, TaxFilingSchedule에 대해 선제적으로 GetAllAsync API 및 구현체 추가

TaxBaik.Infrastructure/Repositories/TaxProfileRepository.cs

@@ -20,6 +20,16 @@ public class TaxProfileRepository(IDbConnectionFactory connectionFactory) : Base
             profile);
     }
 
+    public async Task<IEnumerable<TaxProfile>> GetAllAsync(CancellationToken cancellationToken = default)
+    {
+        using var conn = Conn();
+        return await conn.QueryAsync<TaxProfile>(
+            @"SELECT id, client_id, business_registration, business_type, establishment_date,
+              annual_revenue_range, employee_count, accounting_method, fiscal_year_end, last_filing_date,
+              next_filing_due_date, tax_risk_level, previous_audit_history, special_notes, created_at, updated_at
+              FROM tax_profiles ORDER BY id DESC");
+    }
+
     public async Task<TaxProfile?> GetByClientIdAsync(int clientId, CancellationToken cancellationToken = default)
     {
         using var conn = Conn();