feat(user-models): fall back to category icon when no brand logo matches

src/assets/model_icons/embedding.svg

@@ -0,0 +1,24 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none">
+  <defs>
+    <!-- 顶面填充（亮面，高透明度） -->
+    <linearGradient id="cube-top-grad" x1="12" y1="2" x2="12" y2="12" gradientUnits="userSpaceOnUse">
+      <stop offset="0%" stop-color="#f759ab" stop-opacity="0.18"/>
+      <stop offset="100%" stop-color="#c41d7f" stop-opacity="0.1"/>
+    </linearGradient>
+    <!-- 左侧面填充（暗面，低透明度） -->
+    <linearGradient id="cube-left-grad" x1="2" y1="7" x2="12" y2="17" gradientUnits="userSpaceOnUse">
+      <stop offset="0%" stop-color="#c41d7f" stop-opacity="0.12"/>
+      <stop offset="100%" stop-color="#c41d7f" stop-opacity="0.04"/>
+    </linearGradient>
+    <linearGradient id="cube-stroke-grad" x1="0" y1="0" x2="24" y2="24" gradientUnits="userSpaceOnUse">
+      <stop offset="0%" stop-color="#f759ab"/>
+      <stop offset="100%" stop-color="#c41d7f"/>
+    </linearGradient>
+  </defs>
+  <!-- 顶面填充 -->
+  <polygon points="12,2 21.5,6.7 12,11.5 2.5,6.7" fill="url(#cube-top-grad)" />
+  <!-- 左侧面填充 -->
+  <polygon points="2.5,6.7 12,11.5 12,21.3 2.5,16.5" fill="url(#cube-left-grad)" />
+  <!-- 立方体全纯线外骨架（细化为圆角衔接） -->
+  <path d="M12 2L2.5 6.7M12 2l9.5 4.7M21.5 6.7L12 11.5M2.5 6.7L12 11.5M2.5 6.7v9.8l9.5 4.8M21.5 6.7v9.8l-9.5 4.8M12 11.5v9.8" stroke="url(#cube-stroke-grad)" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round"/>
+</svg>

src/assets/model_icons/image.svg

@@ -0,0 +1,22 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none">
+  <defs>
+    <!-- 1. 定义专属微通透渐变填充 -->
+    <linearGradient id="img-fill-grad" x1="0" y1="0" x2="24" y2="24" gradientUnits="userSpaceOnUse">
+      <stop offset="0%" stop-color="#d46b08" stop-opacity="0.12"/>
+      <stop offset="100%" stop-color="#d46b08" stop-opacity="0.04"/>
+    </linearGradient>
+    <!-- 2. 定义边框高精度渐变（亮橙到深橙，拉开层次） -->
+    <linearGradient id="img-stroke-grad" x1="4" y1="4" x2="20" y2="20" gradientUnits="userSpaceOnUse">
+      <stop offset="0%" stop-color="#fa8c16"/>
+      <stop offset="100%" stop-color="#d46b08"/>
+    </linearGradient>
+  </defs>
+  <!-- 3. 精装底色充填层 -->
+  <rect x="3" y="3" width="18" height="18" rx="4" fill="url(#img-fill-grad)" />
+  <!-- 4. 高级柔和微圆角边框层 -->
+  <rect x="3" y="3" width="18" height="18" rx="4" stroke="url(#img-stroke-grad)" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round"/>
+  <!-- 内部几何现代山脉线条 -->
+  <path d="M3 16l4-4a2 2 0 0 1 2.8 0l5.2 5.2M13 15l2.5-2.5a2 2 0 0 1 2.8 0l2.7 2.7" stroke="url(#img-stroke-grad)" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round"/>
+  <!-- 标志性通透小钻石 -->
+  <rect x="14" y="6" width="4" height="4" rx="1.5" transform="rotate(45 16 8)" fill="#fa8c16" fill-opacity="0.3" stroke="url(#img-stroke-grad)" stroke-width="1"/>
+</svg>

src/assets/model_icons/llm.svg

@@ -0,0 +1,17 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none">
+  <defs>
+    <linearGradient id="chat-fill-grad" x1="0" y1="0" x2="24" y2="24" gradientUnits="userSpaceOnUse">
+      <stop offset="0%" stop-color="#389e0d" stop-opacity="0.1"/>
+      <stop offset="100%" stop-color="#389e0d" stop-opacity="0.02"/>
+    </linearGradient>
+    <linearGradient id="chat-stroke-grad" x1="0" y1="0" x2="24" y2="24" gradientUnits="userSpaceOnUse">
+      <stop offset="0%" stop-color="#73d13d"/>
+      <stop offset="100%" stop-color="#389e0d"/>
+    </linearGradient>
+  </defs>
+  <!-- 主现代对话框体（全部改为圆润R角，精装填充） -->
+  <path d="M18 4H6a3 3 0 0 0-3 3v8a3 3 0 0 0 3 3h7.5l3.5 3.5a1 1 0 0 0 1.5-.5V17a3 3 0 0 0 3-3V7a3 3 0 0 0-3-3z" fill="url(#chat-fill-grad)" stroke="url(#chat-stroke-grad)" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round"/>
+  <!-- 内部通透对话线条（细化为圆角代码采样块感） -->
+  <rect x="7" y="8" width="8" height="1.5" rx="0.75" fill="#73d13d" fill-opacity="0.3"/>
+  <rect x="7" y="11.5" width="10" height="1.5" rx="0.75" fill="#73d13d" fill-opacity="0.2"/>
+</svg>

src/assets/model_icons/reranker.svg

@@ -0,0 +1,19 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none">
+  <defs>
+    <linearGradient id="rank-fill-grad" x1="0" y1="0" x2="24" y2="24" gradientUnits="userSpaceOnUse">
+      <stop offset="0%" stop-color="#08979c" stop-opacity="0.1"/>
+      <stop offset="100%" stop-color="#08979c" stop-opacity="0.01"/>
+    </linearGradient>
+    <linearGradient id="rank-stroke-grad" x1="0" y1="0" x2="24" y2="24" gradientUnits="userSpaceOnUse">
+      <stop offset="0%" stop-color="#36cfc9"/>
+      <stop offset="100%" stop-color="#08979c"/>
+    </linearGradient>
+  </defs>
+  <!-- 数据权重条（全部改为高级圆角） -->
+  <rect x="11" y="4" width="10" height="2.5" rx="1.25" fill="#36cfc9" fill-opacity="0.1" stroke="url(#rank-stroke-grad)" stroke-width="1.5"/>
+  <rect x="11" y="9" width="7.5" height="2.5" rx="1.25" fill="#36cfc9" fill-opacity="0.05" stroke="url(#rank-stroke-grad)" stroke-width="1.5"/>
+  <rect x="11" y="14" width="5" height="2.5" rx="1.25" stroke="url(#rank-stroke-grad)" stroke-width="1.5"/>
+  <!-- 基准线与立体双向指引箭头（优化为圆角） -->
+  <path d="M3 17l3 3 3-3M6 4v16" stroke="url(#rank-stroke-grad)" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round"/>
+  <path d="M4.5 5.5L6 4l1.5 1.5" stroke="url(#rank-stroke-grad)" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round"/>
+</svg>

src/assets/model_icons/stt.svg

@@ -0,0 +1,18 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none">
+  <defs>
+    <linearGradient id="stt-fill-grad" x1="12" y1="3" x2="12" y2="14" gradientUnits="userSpaceOnUse">
+      <stop offset="0%" stop-color="#40a9ff" stop-opacity="0.2"/>
+      <stop offset="100%" stop-color="#1677ff" stop-opacity="0.05"/>
+    </linearGradient>
+    <linearGradient id="stt-stroke-grad" x1="12" y1="3" x2="12" y2="21" gradientUnits="userSpaceOnUse">
+      <stop offset="0%" stop-color="#40a9ff"/>
+      <stop offset="100%" stop-color="#1677ff"/>
+    </linearGradient>
+  </defs>
+  <!-- 麦克风核心体：精装通透填充 -->
+  <rect x="8.5" y="3" width="7" height="11" rx="3.5" fill="url(#stt-fill-grad)" stroke="url(#stt-stroke-grad)" stroke-width="1.8" />
+  <!-- 内部音膜立体结构线（细化为点状） -->
+  <line x1="10" y1="8" x2="14" y2="8" stroke="url(#stt-stroke-grad)" stroke-width="1" stroke-dasharray="1 2"/>
+  <!-- 悬挂外托架与底座（全部改为高级圆角） -->
+  <path d="M5 10a7 7 0 0 0 14 0M12 17v4M8 21h8" stroke="url(#stt-stroke-grad)" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round"/>
+</svg>

src/assets/model_icons/tts.svg

@@ -0,0 +1,23 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none">
+  <defs>
+    <!-- 1. 核心高通透深蓝渐变充填 -->
+    <linearGradient id="tts-v2-fill" x1="12" y1="2" x2="12" y2="22" gradientUnits="userSpaceOnUse">
+      <stop offset="0%" stop-color="#2f54eb" stop-opacity="0.15"/>
+      <stop offset="100%" stop-color="#1d39c4" stop-opacity="0.03"/>
+    </linearGradient>
+    <!-- 2. 精准调校的专属蓝色渐变边框 -->
+    <linearGradient id="tts-v2-stroke" x1="4" y1="4" x2="20" y2="20" gradientUnits="userSpaceOnUse">
+      <stop offset="0%" stop-color="#2f54eb"/>
+      <stop offset="100%" stop-color="#1d39c4"/>
+    </linearGradient>
+  </defs>
+  
+  <!-- 左侧：低频辅助声波（大间距，带现代圆角） -->
+  <rect x="4" y="8" width="2.2" height="8" rx="1.1" stroke="url(#tts-v2-stroke)" stroke-width="1.8" stroke-linecap="round"/>
+  
+  <!-- 中央：核心高频声波主体（拉大宽度，注入通透水晶质感） -->
+  <rect x="10.4" y="2" width="3.2" height="20" rx="1.6" fill="url(#tts-v2-fill)" stroke="url(#tts-v2-stroke)" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round"/>
+  
+  <!-- 右侧：高频衰减声波（保持几何对称与呼吸感） -->
+  <rect x="17.8" y="5" width="2.2" height="14" rx="1.1" stroke="url(#tts-v2-stroke)" stroke-width="1.8" stroke-linecap="round"/>
+</svg>