Add post-archive cleanup policies

internal/config/config.go

@@ -36,7 +36,8 @@ type SessionConfig struct {
 
 // WorkspaceConfig configures local workspace behavior.
 type WorkspaceConfig struct {
-	Root string `yaml:"root"`
+	Root                string `yaml:"root"`
+	CleanupAfterArchive bool   `yaml:"cleanup_after_archive"`
 }
 
 // SecretsConfig configures optional local filesystem secret loading.

internal/config/storage_archive_test.go

@@ -47,6 +47,9 @@ func TestSpoolAndArchiveDefaults(t *testing.T) {
 	if cfg.Pipeline.Spool.DeleteAudioAfterArchive {
 		t.Fatalf("spool.delete_audio_after_archive = true, want false")
 	}
+	if cfg.Pipeline.Workspace.CleanupAfterArchive {
+		t.Fatalf("workspace.cleanup_after_archive = true, want false")
+	}
 	if cfg.Pipeline.Archive == nil {
 		t.Fatal("archive should be initialized by defaults")
 	}