Stack portrait LoRAs and embeddings from model, preset, and shot kind.

Swarm loads LoRAs via loras/loraweights; embeddings go in the prompt as embed tags, not lora tags.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/HSchool.Server/Game/SwarmUiSettingsStore.cs

@@ -550,6 +550,10 @@ internal sealed class SwarmUiModelDefinition
             Sampler = sampler,
             Scheduler = scheduler,
             Seed = seed,
+            PositiveLoras = [],
+            NegativeLoras = [],
+            PositiveEmbeddings = [],
+            NegativeEmbeddings = [],
         };
 }