feat(nodes): add VAE options and clone-safe diffusion

Add VAE encode/decode option nodes across legacy and Comfy v3 exports, with tooltip and registration coverage. Preserve cloned model graph composition for differential diffusion in tiled and regional sampling paths.

tests/test_node_tooltips.py

@@ -20,6 +20,8 @@ from simple_syrup.nodes_v3.encode_prompt_batch_with_prompt_control import (
 from simple_syrup.nodes_v3.scale_factor import ScaleFactorV3
 from simple_syrup.nodes_v3.simple_load_checkpoint import SimpleLoadCheckpointV3
 from simple_syrup.nodes_v3.tile_and_tag_segs import TileAndTagSEGSV3
+from simple_syrup.nodes_v3.vae_decode_options import VAEDecodeOptionsV3
+from simple_syrup.nodes_v3.vae_encode_options import VAEEncodeOptionsV3
 from simple_syrup.nodes_v3.wd14_tagger_loader import WD14TaggerLoaderV3
 
 
@@ -116,6 +118,8 @@ def test_legacy_named_outputs_provide_tooltips() -> None:
         SimpleLoadCheckpointV3,
         ScaleFactorV3,
         TileAndTagSEGSV3,
+        VAEDecodeOptionsV3,
+        VAEEncodeOptionsV3,
         WD14TaggerLoaderV3,
         EncodePromptBatchWithPromptControl,
     ],