feat: unify text encoder selection across H3 variants (#2340)

examples/server/recipes/p-h3-image.json

@@ -3,7 +3,7 @@
   "id": "p-h3-image",
   "name": "P-H3-Image",
   "size_multiple": 32,
-  "description": "Supports text-to-image and reference-image editing with the fixed 8-step schedule. Use the P-H3 single-frame VAE and Qwen3-VL-4B with its vision tower. Supply the P-H3 text connector separately unless it is included in the text encoder.",
+  "description": "Supports text-to-image and reference-image editing with the fixed 8-step schedule. Use the P-H3 single-frame VAE and either Qwen3-VL-4B with the P-H3 text connector or the MiniMax-H3 Qwen3-VL-32B text encoder. Reference images need the matching vision tower.",
   "model_url": "https://huggingface.co/PrunaAI/P-H3-Image",
   "slots": [
     {
@@ -13,7 +13,7 @@
     {
       "id": "llm",
       "required": true,
-      "label": "Qwen 3 VL 4B Text Encoder"
+      "label": "MiniMax-H3 Qwen 3 VL 32B or P-H3 Qwen 3 VL 4B Text Encoder"
     },
     {
       "id": "llm_vision",
@@ -23,7 +23,7 @@
     {
       "id": "embeddings_connectors",
       "required": false,
-      "label": "P-H3 Text Connector (required when not included in the text encoder)"
+      "label": "P-H3 Text Connector (for Qwen 3 VL 4B, when not included in the text encoder)"
     },
     {
       "id": "vae",