MiniMaxH3 became ModelType.FLOW_AV in ComfyUI 0.31 (bdcb886a: audio
carriage redesign); our IS_FLOW checks only matched ModelType.FLOW, so H3
silently fell into the VE schedule branch and sampled garbage (corrupted
video, clipped audio). Treat FLOW_AV as a flow type via a version-safe
getattr tuple.
Example_29: replace the output with the fixed run (InPainted mp4/gif +
combined showcase), and re-export example_workflows JSON from the new
output's embedded metadata. Bump version to 2.0.1.