chore(mma): Clean up mma_exec.py and robustify visual simulation mocking

tests/temp_project.toml

@@ -40,3 +40,27 @@ fetch_url = true
 epic = "Develop a new feature"
 active_track_id = ""
 tracks = []
+
+[mma.active_track]
+id = "track_024370f1b453"
+description = "Mock Goal 1"
+
+[[mma.active_track.tickets]]
+id = "mock-ticket-1"
+description = "Mock Ticket 1"
+status = "todo"
+assigned_to = "unassigned"
+context_requirements = []
+depends_on = []
+step_mode = false
+
+[[mma.active_track.tickets]]
+id = "mock-ticket-2"
+description = "Mock Ticket 2"
+status = "todo"
+assigned_to = "unassigned"
+context_requirements = []
+depends_on = [
+    "mock-ticket-1",
+]
+step_mode = false