stabilizaiton work - projects rework for maintenanceability and ui livening

src/__Libraries/StellaOps.Provcache.Postgres/PostgresProvcacheRepository.DeletePolicySigner.cs

@@ -0,0 +1,40 @@
+using Microsoft.EntityFrameworkCore;
+
+namespace StellaOps.Provcache.Postgres;
+
+public sealed partial class PostgresProvcacheRepository
+{
+    /// <inheritdoc />
+    public async Task<long> DeleteByPolicyHashAsync(string policyHash, CancellationToken cancellationToken = default)
+    {
+        var deleted = await _context.ProvcacheItems
+            .Where(e => e.PolicyHash == policyHash)
+            .ExecuteDeleteAsync(cancellationToken)
+            .ConfigureAwait(false);
+
+        if (deleted > 0)
+        {
+            await LogRevocationAsync("policy", policyHash, "policy-update", deleted, cancellationToken)
+                .ConfigureAwait(false);
+        }
+
+        return deleted;
+    }
+
+    /// <inheritdoc />
+    public async Task<long> DeleteBySignerSetHashAsync(string signerSetHash, CancellationToken cancellationToken = default)
+    {
+        var deleted = await _context.ProvcacheItems
+            .Where(e => e.SignerSetHash == signerSetHash)
+            .ExecuteDeleteAsync(cancellationToken)
+            .ConfigureAwait(false);
+
+        if (deleted > 0)
+        {
+            await LogRevocationAsync("signer", signerSetHash, "signer-revocation", deleted, cancellationToken)
+                .ConfigureAwait(false);
+        }
+
+        return deleted;
+    }
+}