Engine: list edge, params and reverse in the sequence.applyAudioTransition schema (#1100)

crates/engine/src/commands.rs

@@ -1740,7 +1740,7 @@ fn build() -> Vec<CommandSpec> {
             "Apply Audio Transition",
             ["Sequence"],
             Some("Cmd+Shift+D"),
-            r#"{"clip":id?,"effect":str?,"frames":i64?}"#,
+            r#"{"clip":id?,"effect":"constant_power|Constant Power|…"?,"frames":i64?,"edge":"in"|"out"?,"params":{param:value}?,"reverse":bool?}"#,
             has_seq,
             |s, p| apply_transition(s, p, TrackKind::Audio)
         ),

crates/engine/src/mixer_tests.rs

@@ -520,3 +520,11 @@ fn surround_sequence_settings_and_panner_lanes() {
     assert!(s.execute("file.newSequence", json!({"mix": "7.1"})).is_err());
     s.execute("file.newSequence", json!({"trackType": "Standard"})).unwrap();
 }
+
+#[test]
+fn audio_transition_schema_lists_edge_params_and_reverse() {
+    let params = find_command("sequence.applyAudioTransition").unwrap().params;
+    for key in ["\"edge\"", "\"params\"", "\"reverse\"", "constant_power"] {
+        assert!(params.contains(key), "schema `{params}` is missing {key}");
+    }
+}