wip: doctor/cli/docs/api to vector db consolidation; api hardening for descriptions, tenant, and scopes; migrations and conversions of all DALs to EF v10

src/__Libraries/StellaOps.Evidence.Persistence/Postgres/PostgresEvidenceStore.cs

@@ -1,17 +1,22 @@
 using Microsoft.Extensions.Logging;
 using StellaOps.Evidence.Core;
-using StellaOps.Infrastructure.Postgres.Repositories;
+using StellaOps.Infrastructure.Postgres.Connections;
 using System.Text.Json;
 
 namespace StellaOps.Evidence.Persistence.Postgres;
 
 /// <summary>
-/// PostgreSQL implementation of <see cref="IEvidenceStore"/>.
+/// PostgreSQL (EF Core) implementation of <see cref="IEvidenceStore"/>.
 /// Stores evidence records with content-addressed IDs and tenant isolation via RLS.
 /// </summary>
-public sealed partial class PostgresEvidenceStore : RepositoryBase<EvidenceDataSource>, IEvidenceStore
+public sealed partial class PostgresEvidenceStore : IEvidenceStore
 {
+    private const int CommandTimeoutSeconds = 30;
+
+    private readonly EvidenceDataSource _dataSource;
     private readonly string _tenantId;
+    private readonly ILogger<PostgresEvidenceStore> _logger;
+
     private static readonly JsonSerializerOptions _jsonOptions = new()
     {
         PropertyNamingPolicy = JsonNamingPolicy.CamelCase
@@ -27,9 +32,15 @@ public sealed partial class PostgresEvidenceStore : RepositoryBase<EvidenceDataS
         EvidenceDataSource dataSource,
         string tenantId,
         ILogger<PostgresEvidenceStore> logger)
-        : base(dataSource, logger)
     {
+        ArgumentNullException.ThrowIfNull(dataSource);
         ArgumentException.ThrowIfNullOrWhiteSpace(tenantId);
+        ArgumentNullException.ThrowIfNull(logger);
+
+        _dataSource = dataSource;
         _tenantId = tenantId;
+        _logger = logger;
     }
+
+    private string GetSchemaName() => EvidenceDataSource.DefaultSchemaName;
 }