Music Pipeline Configuration Hardening

internal/project/project_test.go

@@ -81,6 +81,9 @@ paths:
 	if got := strings.Join(effective.Validation.RequiredFields["ifo"], ","); got != "Mod_Name" {
 		t.Fatalf("expected default IFO required fields, got %#v", effective.Validation.RequiredFields)
 	}
+	if got, want := strings.Join(effective.Music.ConvertExtensions, ","), ".flac,.m4a,.mp3,.ogg,.wav"; got != want {
+		t.Fatalf("expected default music convert extensions %q, got %q", want, got)
+	}
 	if prov := effective.Provenance["paths.build"]; prov.Source != "toolkit default" {
 		t.Fatalf("expected paths.build toolkit default provenance, got %#v", prov)
 	}
@@ -120,6 +123,53 @@ validation:
 	}
 }
 
+func TestScanUsesYAMLMusicConvertExtensionsWithinConfiguredDatasetRoots(t *testing.T) {
+	root := t.TempDir()
+	if err := os.MkdirAll(filepath.Join(root, "assets", "audio", "westgate"), 0o755); err != nil {
+		t.Fatalf("mkdir westgate audio: %v", err)
+	}
+	if err := os.MkdirAll(filepath.Join(root, "assets", "audio", "other"), 0o755); err != nil {
+		t.Fatalf("mkdir other audio: %v", err)
+	}
+	writeProjectFile(t, filepath.Join(root, ConfigFile), `
+module:
+  name: Test Module
+  resref: testmod
+paths:
+  source: src
+  assets: assets
+music:
+  defaults:
+    convert_extensions:
+      - .flac
+  datasets:
+    westgate_audio:
+      source: audio/westgate
+      convert_extensions:
+        - .aac
+`)
+	writeProjectFile(t, filepath.Join(root, "assets", "audio", "westgate", "theme.aac"), "aac")
+	writeProjectFile(t, filepath.Join(root, "assets", "audio", "westgate", "theme.flac"), "flac")
+	writeProjectFile(t, filepath.Join(root, "assets", "audio", "other", "ignored.aac"), "aac")
+
+	proj, err := Load(root)
+	if err != nil {
+		t.Fatalf("Load returned error: %v", err)
+	}
+	if err := proj.Scan(); err != nil {
+		t.Fatalf("Scan returned error: %v", err)
+	}
+	if !slices.Contains(proj.Inventory.AssetFiles, "audio/westgate/theme.aac") {
+		t.Fatalf("expected configured dataset AAC file to be discovered, got %#v", proj.Inventory.AssetFiles)
+	}
+	if !slices.Contains(proj.Inventory.AssetFiles, "audio/westgate/theme.flac") {
+		t.Fatalf("expected configured dataset FLAC file to be discovered, got %#v", proj.Inventory.AssetFiles)
+	}
+	if slices.Contains(proj.Inventory.AssetFiles, "audio/other/ignored.aac") {
+		t.Fatalf("did not expect non-dataset AAC file to be discovered, got %#v", proj.Inventory.AssetFiles)
+	}
+}
+
 func TestEffectiveConfigHonorsConfiguredOutputAndCacheFields(t *testing.T) {
 	root := t.TempDir()
 	writeProjectFile(t, filepath.Join(root, ConfigFile), `