add missing migration

src/app/database/migrations/2025-05-04_05-05-24_create_blogs.zig

@@ -0,0 +1,20 @@
+const std = @import("std");
+const jetquery = @import("jetquery");
+const t = jetquery.schema.table;
+
+pub fn up(repo: anytype) !void {
+    try repo.createTable(
+        "blogs",
+        &.{
+            t.primaryKey("id", .{}),
+            t.column("title", .string, .{}),
+            t.column("content", .text, .{ .optional = true }),
+            t.timestamps(.{}),
+        },
+        .{},
+    );
+}
+
+pub fn down(repo: anytype) !void {
+    try repo.dropTable("blogs", .{});
+}