Ban template system (#29365)

To help out admins, so they can easily fill out datacenter bans and stuff. Supports ban exemption flags and everything.

This is for use with SS14.Admin so it's just DB models here.

(cherry picked from commit 0c34eb6138b9f7d1698b546d1591096fc517d989)

Content.Server.Database/Migrations/Postgres/20240623005121_BanTemplate.cs

@@ -0,0 +1,42 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace Content.Server.Database.Migrations.Postgres
+{
+    /// <inheritdoc />
+    public partial class BanTemplate : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "ban_template",
+                columns: table => new
+                {
+                    ban_template_id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    title = table.Column<string>(type: "text", nullable: false),
+                    length = table.Column<TimeSpan>(type: "interval", nullable: false),
+                    reason = table.Column<string>(type: "text", nullable: false),
+                    exempt_flags = table.Column<int>(type: "integer", nullable: false),
+                    severity = table.Column<int>(type: "integer", nullable: false),
+                    auto_delete = table.Column<bool>(type: "boolean", nullable: false),
+                    hidden = table.Column<bool>(type: "boolean", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_ban_template", x => x.ban_template_id);
+                });
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "ban_template");
+        }
+    }
+}

Content.Server.Database/Migrations/Postgres/PostgresServerDbContextModelSnapshot.cs

@@ -512,6 +512,51 @@ protected override void BuildModel(ModelBuilder modelBuilder)
                     b.ToTable("assigned_user_id", (string)null);
                 });
 
+            modelBuilder.Entity("Content.Server.Database.BanTemplate", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer")
+                        .HasColumnName("ban_template_id");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<bool>("AutoDelete")
+                        .HasColumnType("boolean")
+                        .HasColumnName("auto_delete");
+
+                    b.Property<int>("ExemptFlags")
+                        .HasColumnType("integer")
+                        .HasColumnName("exempt_flags");
+
+                    b.Property<bool>("Hidden")
+                        .HasColumnType("boolean")
+                        .HasColumnName("hidden");
+
+                    b.Property<TimeSpan>("Length")
+                        .HasColumnType("interval")
+                        .HasColumnName("length");
+
+                    b.Property<string>("Reason")
+                        .IsRequired()
+                        .HasColumnType("text")
+                        .HasColumnName("reason");
+
+                    b.Property<int>("Severity")
+                        .HasColumnType("integer")
+                        .HasColumnName("severity");
+
+                    b.Property<string>("Title")
+                        .IsRequired()
+                        .HasColumnType("text")
+                        .HasColumnName("title");
+
+                    b.HasKey("Id")
+                        .HasName("PK_ban_template");
+
+                    b.ToTable("ban_template", (string)null);
+                });
+
             modelBuilder.Entity("Content.Server.Database.ConnectionLog", b =>
                 {
                     b.Property<int>("Id")