feat: refactor model manager

* chore: mv model icon
* fix: model icon
* fix: model icon
* feat: refactor model manager
* fix: model icon
* fix: model icon
* feat: refactor model manager

See merge request: !905

backend/conf/model/template/model_template_ollama.yaml

@@ -0,0 +1,84 @@
+id: 2003
+name: Gemma-3
+icon_uri: default_icon/ollama.png
+icon_url: ""
+description:
+    zh: ollama 模型简介
+    en: ollama model description
+default_parameters:
+    - name: temperature
+      label:
+        zh: 生成随机性
+        en: Temperature
+      desc:
+        zh: '- **temperature**: 调高温度会使得模型的输出更多样性和创新性，反之，降低温度会使输出内容更加遵循指令要求但减少多样性。建议不要与“Top p”同时调整。'
+        en: '**Temperature**:\n\n- When you increase this value, the model outputs more diverse and innovative content; when you decrease it, the model outputs less diverse content that strictly follows the given instructions.\n- It is recommended not to adjust this value with \"Top p\" at the same time.'
+      type: float
+      min: "0"
+      max: "1"
+      default_val:
+        balance: "0.8"
+        creative: "1"
+        default_val: "1.0"
+        precise: "0.3"
+      precision: 1
+      options: []
+      style:
+        widget: slider
+        label:
+            zh: 生成多样性
+            en: Generation diversity
+    - name: max_tokens
+      label:
+        zh: 最大回复长度
+        en: Response max length
+      desc:
+        zh: 控制模型输出的Tokens 长度上限。通常 100 Tokens 约等于 150 个中文汉字。
+        en: You can specify the maximum length of the tokens output through this value. Typically, 100 tokens are approximately equal to 150 Chinese characters.
+      type: int
+      min: "1"
+      max: "4096"
+      default_val:
+        default_val: "4096"
+      options: []
+      style:
+        widget: slider
+        label:
+            zh: 输入及输出设置
+            en: Input and output settings
+meta:
+    name: Gemma-3
+    protocol: ollama
+    capability:
+        function_call: true
+        input_modal:
+            - text
+        input_tokens: 128000
+        json_mode: false
+        max_tokens: 128000
+        output_modal:
+            - text
+        output_tokens: 16384
+        prefix_caching: false
+        reasoning: false
+        prefill_response: false
+    conn_config:
+        base_url: ""
+        api_key: ""
+        timeout: 0s
+        model: ""
+        temperature: 0.6
+        frequency_penalty: 0
+        presence_penalty: 0
+        max_tokens: 4096
+        top_p: 0.95
+        top_k: 20
+        stop: []
+        openai: null
+        claude: null
+        ark: null
+        deepseek: null
+        qwen: null
+        gemini: null
+        custom: {}
+    status: 0