Wire H3 long videos to plan scene refs

README.md

@@ -34,11 +34,12 @@
   - Reads back the nine optional images for a selected MiniMax H3 plan scene, for example by connecting the current `clip_index`.
 
 - `Dumas H3 Long Videos (FL2VA + REF2VA)`
-  - Inputs: H3 model stack, prompt socket, optional `first_frame`, optional `ref_image_1`..`ref_image_9`, plus the upstream long-video control surface for pacing, continuity, audio, overlays, and guards
+  - Inputs: H3 model stack, prompt socket, optional `first_frame`, optional `ref_image_1`..`ref_image_9`, optional `plan`, optional `plan_scene_index`, plus the upstream long-video control surface for pacing, continuity, audio, overlays, and guards
   - Outputs: `images`, `audio`, `info`, `script`, `frames_per_shot`, `total_frames`, `shots`, `video_seconds`, `fps`, `fps_int`, `latent`, `soundscape`
   - First-pass Dumas port of the `MiniMax-H3-Longvideos` sampler, brought in as a local starting point for long-form H3 chaining work.
   - Keeps the upstream split-beats / handoff / ref-routing behavior close to source so future Dumas-specific improvements can be compared against a known baseline.
   - Prompt `<Picture N>` tags now map to the actual ref socket numbers you wire, even with gaps such as only `ref_image_2` and `ref_image_7` connected.
+  - A connected H3 plan can now supply the current scene’s 9-image bundle directly; any directly-wired `ref_image_*` socket overrides the same numbered plan slot.
 
 - `Dumas H3 Shot Length`
   - Inputs: `shot_seconds`, `fps`, optional `cap_to_h3_max`