Keep Run and Platform logs opaque

plugins/examples/scum-server-plugin/companion/player_projection_test.go

@@ -5,6 +5,7 @@ import (
 	"encoding/json"
 	"io"
 	"net/http"
+	"os"
 	"strings"
 	"testing"
 	"time"
@@ -44,3 +45,55 @@ func TestSCUMPlayerLogProjectionCreatesTypedUserSnapshot(t *testing.T) {
 		t.Fatalf("unexpected projected player: %#v", players[0])
 	}
 }
+
+func TestSCUMPlayerLogProjectionKeepsSequenceAcrossRestart(t *testing.T) {
+	stamp := time.Date(2026, 9, 2, 2, 0, 0, 0, time.UTC)
+	config := loadTestConfig(t)
+	sequences := make([]uint64, 0, 2)
+	client := newTestClient(t, config, roundTripFunc(func(request *http.Request) (*http.Response, error) {
+		if request.URL.Path != snapshotPath {
+			t.Fatalf("unexpected projection request path: %s", request.URL.Path)
+		}
+		var body snapshotRequest
+		if err := json.NewDecoder(request.Body).Decode(&body); err != nil {
+			t.Fatalf("decode snapshot request: %v", err)
+		}
+		sequences = append(sequences, body.Sequence)
+		return &http.Response{StatusCode: http.StatusAccepted, Header: make(http.Header), Body: io.NopCloser(strings.NewReader(`{"snapshotId":"snapshot","profileKey":"scum-client-manager","type":"players","schemaVersion":"1","streamKey":"current"}`))}, nil
+	}), stamp)
+	client.mu.Lock()
+	client.sessionToken = "component-session"
+	client.sessionExpiresAt = stamp.Add(time.Hour)
+	client.mu.Unlock()
+
+	originalDirectory, err := os.Getwd()
+	if err != nil {
+		t.Fatalf("get working directory: %v", err)
+	}
+	t.Chdir(t.TempDir())
+	t.Cleanup(func() { _ = os.Chdir(originalDirectory) })
+	store, err := NewFileSnapshotSequenceStore(SnapshotSequenceFilename)
+	if err != nil {
+		t.Fatalf("create sequence store: %v", err)
+	}
+	project := func(name string) error {
+		projection := NewSCUMPlayerLogProjection(client, "server-example")
+		projection.Now = func() time.Time { return stamp }
+		projection.SequenceStore = store
+		return projection.Handle(context.Background(), SemanticEventBatch{ServerID: "server-example", Events: []SemanticEvent{{ServerID: "server-example", Sequence: 1, Type: "scum.login", PlayerID: "76561198000000001", DisplayName: name, OccurredAt: stamp}}})
+	}
+	if err := project("Ada"); err != nil {
+		t.Fatalf("project before restart: %v", err)
+	}
+	restarted, err := NewFileSnapshotSequenceStore(SnapshotSequenceFilename)
+	if err != nil {
+		t.Fatalf("restart sequence store: %v", err)
+	}
+	store = restarted
+	if err := project("Ada Lovelace"); err != nil {
+		t.Fatalf("project after restart: %v", err)
+	}
+	if len(sequences) != 2 || sequences[1] <= sequences[0] {
+		t.Fatalf("expected restart-safe monotonic snapshots, got %v", sequences)
+	}
+}