add(stealth): add new model to the list

models/stealth-v1.1-7b/model.json

@@ -0,0 +1,26 @@
+{
+    "source_url": "https://huggingface.co/janhq/stealth-v1.1-GGUF/resolve/main/stealth-v1.1.Q4_K_M.gguf",
+    "id": "stealth-v1.1-7b",
+    "object": "model",
+    "name": "Stealth-v1.1 7B Q4",
+    "version": "1.0",
+    "description": "This is a new experimental family designed to enhance Mathematical and Logical abilities.",
+    "format": "gguf",
+    "settings": {
+      "ctx_len": 4096,
+      "prompt_template": "<|im_start|>system\n{system_message}<|im_end|>\n<|im_start|>user\n{prompt}<|im_end|>\n<|im_start|>assistant"
+    },
+    "parameters": {
+      "max_tokens": 4096
+    },
+    "metadata": {
+      "author": "Jan",
+      "tags": [
+        "7B",
+        "Merged"
+      ],
+      "size": 4370000000
+    },
+    "engine": "nitro",
+    "state": "ready"
+  }