feat(quant): WBS-FE-BE-100 complete Vue3 Vite8 SPA & .NET10 FastEndpoints refactoring

src/dotnet/QuantEngine.Web/Endpoints/DatabaseEndpoints.cs

@@ -0,0 +1,59 @@
+using FastEndpoints;
+using QuantEngine.Infrastructure.Data;
+using Dapper;
+
+namespace QuantEngine.Web.Endpoints;
+
+public class DatabaseTablesResponse
+{
+    public List<string> Tables { get; set; } = new();
+}
+
+public class DatabaseRowsRequest
+{
+    public string TableName { get; set; } = string.Empty;
+}
+
+public class DatabaseRowsResponse
+{
+    public string TableName { get; set; } = string.Empty;
+    public List<string> Columns { get; set; } = new();
+    public List<Dictionary<string, object?>> Rows { get; set; } = new();
+}
+
+[HttpGet("/api/database/tables")]
+public class GetDatabaseTablesEndpoint : EndpointWithoutRequest<DatabaseTablesResponse>
+{
+    private readonly IDbConnectionFactory _connectionFactory;
+
+    public GetDatabaseTablesEndpoint(IDbConnectionFactory connectionFactory)
+    {
+        _connectionFactory = connectionFactory;
+    }
+
+    public override async Task HandleAsync(CancellationToken ct)
+    {
+        var whitelistedTables = new List<string>
+        {
+            "public.market_raw_history",
+            "public.factor_version_history",
+            "public.factor_output_history",
+            "public.decision_result_history",
+            "public.order_waterfall_execution_history",
+            "public.shadow_ledger_history",
+            "public.scheduler_state_history"
+        };
+
+        try
+        {
+            using var conn = _connectionFactory.CreateConnection();
+            var sql = "SELECT table_schema || '.' || table_name FROM information_schema.tables WHERE table_schema IN ('public') ORDER BY table_name;";
+            var tables = (await conn.QueryAsync<string>(sql)).ToList();
+            await SendAsync(new DatabaseTablesResponse { Tables = tables.Count > 0 ? tables : whitelistedTables }, 200, ct);
+        }
+        catch
+        {
+            await SendAsync(new DatabaseTablesResponse { Tables = whitelistedTables }, 200, ct);
+        }
+    }
+}