fix: address issues in model pull and chat API

- Refactored model pull logic to improve error handling and user feedback.
- Enhanced chat API to ensure better performance and reliability during message fetching.
- Updated UI components for a more intuitive user experience when interacting with models and messages.

data/models/qwen3-embedding.json

@@ -0,0 +1,32 @@
+{
+  "model": "qwen3-embedding",
+  "url": "https://ollama.com/library/qwen3-embedding",
+  "description": "Building upon the foundational models of the Qwen3 series, Qwen3 Embedding provides a comprehensive range of text embeddings models in various sizes",
+  "variantsCount": 4,
+  "variants": [
+    {
+      "name": "qwen3-embedding:latest",
+      "size": "4.7GB",
+      "context": "40K",
+      "inputType": "Text"
+    },
+    {
+      "name": "qwen3-embedding:0.6b",
+      "size": "639MB",
+      "context": "32K",
+      "inputType": "Text"
+    },
+    {
+      "name": "qwen3-embedding:4b",
+      "size": "2.5GB",
+      "context": "40K",
+      "inputType": "Text"
+    },
+    {
+      "name": "qwen3-embedding:8b",
+      "size": "4.7GB",
+      "context": "40K",
+      "inputType": "Text"
+    }
+  ]
+}