Add archive storage path configuration

internal/artifacts/s3_keys_test.go

@@ -0,0 +1,45 @@
+package artifacts
+
+import (
+	"strings"
+	"testing"
+)
+
+func TestS3KeyConstruction(t *testing.T) {
+	runID := "20260515T031522Z-a1b2c3d4"
+	sessionPrefix := S3SessionPrefix("dnd", "forsaken", "2026-04-19")
+	if sessionPrefix != "dnd/campaigns/forsaken/sessions/2026-04-19/" {
+		t.Fatalf("sessionPrefix = %q", sessionPrefix)
+	}
+
+	audioPrefix := S3AudioPrefix(sessionPrefix, "audio/")
+	if audioPrefix != "dnd/campaigns/forsaken/sessions/2026-04-19/audio/" {
+		t.Fatalf("audioPrefix = %q", audioPrefix)
+	}
+
+	runPrefix := S3RunPrefix(sessionPrefix, runID)
+	wantRunPrefix := "dnd/campaigns/forsaken/sessions/2026-04-19/runs/" + runID + "/"
+	if runPrefix != wantRunPrefix {
+		t.Fatalf("runPrefix = %q, want %q", runPrefix, wantRunPrefix)
+	}
+
+	runPointer := S3CurrentRunPointerKey(sessionPrefix)
+	if runPointer != "dnd/campaigns/forsaken/sessions/2026-04-19/current/run_id.txt" {
+		t.Fatalf("run pointer key = %q", runPointer)
+	}
+
+	manifestKey := S3CurrentManifestKey(sessionPrefix)
+	if manifestKey != "dnd/campaigns/forsaken/sessions/2026-04-19/current/manifest.json" {
+		t.Fatalf("manifest key = %q", manifestKey)
+	}
+
+	promoted := S3PromotedArtifactKey(sessionPrefix, "transcripts/trimmed.json")
+	if promoted != "dnd/campaigns/forsaken/sessions/2026-04-19/transcripts/trimmed.json" {
+		t.Fatalf("promoted key = %q", promoted)
+	}
+
+	runRelative := S3RunRelativeDestinationKey(runPrefix, `logs\whisperx.stdout.log`)
+	if !strings.HasSuffix(runRelative, "/logs/whisperx.stdout.log") {
+		t.Fatalf("runRelative key = %q, want normalized forward slashes", runRelative)
+	}
+}