feat(backend): implement task creation and admin web

backend-api/internal/platform/migration/runner_test.go

@@ -27,10 +27,13 @@ func TestRunnerSupportsUpStatusDownAndIdempotentUp(t *testing.T) {
 	if err != nil {
 		t.Fatalf("Up() error = %v", err)
 	}
-	if applied != 1 {
-		t.Fatalf("Up() applied = %d, want 1", applied)
+	if applied != 2 {
+		t.Fatalf("Up() applied = %d, want 2", applied)
 	}
-	assertStatus(t, runner, true)
+	assertStatuses(t, runner, map[int64]bool{
+		1: true,
+		2: true,
+	})
 
 	applied, err = runner.Up(context.Background())
 	if err != nil {
@@ -43,7 +46,10 @@ func TestRunnerSupportsUpStatusDownAndIdempotentUp(t *testing.T) {
 	if err := runner.Down(context.Background()); err != nil {
 		t.Fatalf("Down() error = %v", err)
 	}
-	assertStatus(t, runner, false)
+	assertStatuses(t, runner, map[int64]bool{
+		1: true,
+		2: false,
+	})
 
 	applied, err = runner.Up(context.Background())
 	if err != nil {
@@ -52,18 +58,37 @@ func TestRunnerSupportsUpStatusDownAndIdempotentUp(t *testing.T) {
 	if applied != 1 {
 		t.Fatalf("final Up() applied = %d, want 1", applied)
 	}
+	assertStatuses(t, runner, map[int64]bool{
+		1: true,
+		2: true,
+	})
 }
 
-func assertStatus(t *testing.T, runner *Runner, applied bool) {
+func assertStatuses(
+	t *testing.T,
+	runner *Runner,
+	want map[int64]bool,
+) {
 	t.Helper()
 	statuses, err := runner.Status(context.Background())
 	if err != nil {
 		t.Fatalf("Status() error = %v", err)
 	}
-	if len(statuses) != 1 {
-		t.Fatalf("Status() count = %d, want 1", len(statuses))
+	if len(statuses) != len(want) {
+		t.Fatalf("Status() count = %d, want %d", len(statuses), len(want))
 	}
-	if statuses[0].Version != 1 || statuses[0].Applied != applied {
-		t.Fatalf("Status() = %+v", statuses[0])
+	for _, status := range statuses {
+		applied, ok := want[status.Version]
+		if !ok {
+			t.Fatalf("unexpected migration status = %+v", status)
+		}
+		if status.Applied != applied {
+			t.Fatalf(
+				"migration %d applied = %t, want %t",
+				status.Version,
+				status.Applied,
+				applied,
+			)
+		}
 	}
 }