feat: add shared PostgreSQL fnOS service and refresh UI

src/PostgresService.WebApi/Models.cs

@@ -0,0 +1,72 @@
+namespace PostgresService.WebApi;
+
+public sealed record LoginRequest(string Username, string Password);
+
+public sealed record EnrollRequest(
+    string AppId,
+    string DisplayName,
+    IReadOnlyList<string>? RequestedExtensions);
+
+public sealed record PostgresClientCredential(
+    string Host,
+    int Port,
+    string Database,
+    string Username,
+    string Password,
+    string SslMode,
+    string ServiceVersion);
+
+public sealed record CreateDatabaseRequest(string Name, string? Owner);
+public sealed record CreateRoleRequest(string Name, string Password);
+public sealed record QueryRequest(string Database, string Sql);
+public sealed record BackupRequest(string Database);
+public sealed record RestoreRequest(
+    string BackupFileName,
+    string TargetDatabase,
+    bool Overwrite,
+    string Confirmation);
+
+public sealed record ManagedClient(
+    string AppId,
+    string DisplayName,
+    string DatabaseName,
+    string RoleName,
+    string[] Extensions,
+    string Status,
+    DateTimeOffset CreatedAt,
+    DateTimeOffset UpdatedAt);
+
+public sealed record DatabaseSummary(
+    string Name,
+    string Owner,
+    long SizeBytes,
+    int ActiveConnections,
+    bool IsManaged);
+
+public sealed record RoleSummary(
+    string Name,
+    bool CanLogin,
+    int ConnectionLimit,
+    bool IsManaged);
+
+public sealed record SessionSummary(
+    int ProcessId,
+    string Database,
+    string Username,
+    string State,
+    string? Query,
+    DateTimeOffset? QueryStartedAt);
+
+public sealed record BackupSummary(
+    string FileName,
+    string Database,
+    long SizeBytes,
+    DateTimeOffset CreatedAt,
+    string Sha256);
+
+public sealed record QueryResult(
+    string[] Columns,
+    IReadOnlyList<object?[]> Rows,
+    int RowCount,
+    bool Truncated,
+    long ElapsedMilliseconds);