feat: chat integration, tenant admin spec, backend chat service, miniprogram updates, DEMO moved to tmp, XCX-TEST removed, migrations & docs

tmp/DEMO-miniprogram/miniprogram/assets/icons/feature-ai.svg

@@ -0,0 +1,97 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 80 80" fill="none">
+  <defs>
+    <!-- 主背景渐变：橙色 -->
+    <linearGradient id="ag" x1="0" y1="0" x2="80" y2="80" gradientUnits="userSpaceOnUse">
+      <stop offset="0%" stop-color="#ffab5e"/>
+      <stop offset="100%" stop-color="#e05a00"/>
+    </linearGradient>
+    <!-- 头部面板渐变 -->
+    <linearGradient id="head" x1="20" y1="26" x2="60" y2="66" gradientUnits="userSpaceOnUse">
+      <stop offset="0%" stop-color="#fff3e0"/>
+      <stop offset="100%" stop-color="#ffe0b2"/>
+    </linearGradient>
+    <!-- 眼睛渐变 -->
+    <linearGradient id="eye" x1="0" y1="0" x2="0" y2="1">
+      <stop offset="0%" stop-color="#ff8c42"/>
+      <stop offset="100%" stop-color="#c94f00"/>
+    </linearGradient>
+    <!-- 口部渐变 -->
+    <linearGradient id="mouth" x1="0" y1="0" x2="1" y2="0">
+      <stop offset="0%" stop-color="#ff8c42"/>
+      <stop offset="100%" stop-color="#e05a00"/>
+    </linearGradient>
+    <!-- 投影 -->
+    <filter id="as" x="-20%" y="-20%" width="140%" height="140%">
+      <feDropShadow dx="0" dy="3" stdDeviation="3" flood-color="#c94f00" flood-opacity="0.32"/>
+    </filter>
+    <!-- 头部光泽 -->
+    <filter id="hs" x="-10%" y="-10%" width="120%" height="120%">
+      <feDropShadow dx="0" dy="2" stdDeviation="2" flood-color="#ffab5e" flood-opacity="0.5"/>
+    </filter>
+    <!-- 眼睛外发光 -->
+    <filter id="eyeglow" x="-60%" y="-60%" width="220%" height="220%">
+      <feGaussianBlur stdDeviation="1.5" result="blur"/>
+      <feMerge><feMergeNode in="blur"/><feMergeNode in="SourceGraphic"/></feMerge>
+    </filter>
+    <!-- 天线发光 -->
+    <filter id="antglow" x="-80%" y="-80%" width="360%" height="360%">
+      <feGaussianBlur stdDeviation="2" result="blur"/>
+      <feMerge><feMergeNode in="blur"/><feMergeNode in="SourceGraphic"/></feMerge>
+    </filter>
+  </defs>
+
+  <!-- ── 外层背景圆角面板 ── -->
+  <rect x="8" y="8" width="64" height="64" rx="18" fill="url(#ag)" filter="url(#as)"/>
+
+  <!-- ── 顶部高光条 ── -->
+  <rect x="8" y="8" width="64" height="22" rx="18" fill="white" opacity="0.10"/>
+
+  <!-- ── 天线（高对比度，纯白单杆，辨识度优先） ── -->
+  <line x1="40" y1="23" x2="40" y2="10" stroke="white" stroke-width="5" stroke-linecap="round"/>
+  <!-- 天线球：白色大球 + 橙色芯 + 高光 -->
+  <circle cx="40" cy="7" r="6" fill="white"/>
+  <circle cx="40" cy="7" r="3.2" fill="#ff8c42"/>
+  <circle cx="38.8" cy="5.8" r="1.1" fill="white" opacity="0.9"/>
+
+  <!-- ── 机器人头部主体 ── -->
+  <rect x="18" y="24" width="44" height="36" rx="10" fill="url(#head)" filter="url(#hs)"/>
+
+  <!-- 头部顶部高光线 -->
+  <rect x="24" y="25" width="32" height="3" rx="1.5" fill="white" opacity="0.55"/>
+
+  <!-- ── 耳朵（只保留外轮廓三面，内侧开口贴合头部无边界线） ── -->
+  <!-- 左耳：填充先铺，再用外轮廓 path 三面描边（左/上/下弧），右侧开口不画线 -->
+  <rect x="11" y="33" width="8" height="14" rx="4" fill="#ffd4a8"/>
+  <!-- 用头部同色覆盖右侧接缝描边区域 -->
+  <rect x="17" y="33" width="3" height="14" fill="#ffd4a8"/>
+  <path d="M19 33 Q11 33 11 37 L11 43 Q11 47 19 47" stroke="#ffab5e" stroke-width="1.8" fill="none" stroke-linecap="round"/>
+
+  <!-- 右耳：同理，左侧开口不画线 -->
+  <rect x="61" y="33" width="8" height="14" rx="4" fill="#ffd4a8"/>
+  <rect x="61" y="33" width="3" height="14" fill="#ffd4a8"/>
+  <path d="M61 33 Q69 33 69 37 L69 43 Q69 47 61 47" stroke="#ffab5e" stroke-width="1.8" fill="none" stroke-linecap="round"/>
+
+  <!-- ── 眼睛（渐变 + 双高光 + 发光） ── -->
+  <!-- 左眼 -->
+  <circle cx="31" cy="37" r="5.5" fill="url(#eye)" filter="url(#eyeglow)"/>
+  <circle cx="31" cy="37" r="4.5" fill="url(#eye)"/>
+  <circle cx="29.5" cy="35.5" r="1.6" fill="white" opacity="0.9"/>
+  <circle cx="33" cy="38.5" r="0.8" fill="white" opacity="0.5"/>
+  <!-- 右眼 -->
+  <circle cx="49" cy="37" r="5.5" fill="url(#eye)" filter="url(#eyeglow)"/>
+  <circle cx="49" cy="37" r="4.5" fill="url(#eye)"/>
+  <circle cx="47.5" cy="35.5" r="1.6" fill="white" opacity="0.9"/>
+  <circle cx="51" cy="38.5" r="0.8" fill="white" opacity="0.5"/>
+
+  <!-- ── 腮红（红色系，更明显） ── -->
+  <ellipse cx="23.5" cy="46" rx="5" ry="3.2" fill="#f4756a" opacity="0.65"/>
+  <ellipse cx="56.5" cy="46" rx="5" ry="3.2" fill="#f4756a" opacity="0.65"/>
+
+  <!-- ── 微笑嘴巴 ── -->
+  <path d="M30 49 Q40 56 50 49" stroke="url(#mouth)" stroke-width="2.2" stroke-linecap="round" fill="none"/>
+  <path d="M34 50.5 Q40 55 46 50.5" fill="white" opacity="0.55"/>
+
+  <!-- ── 右上角单颗星形闪光 ── -->
+  <path d="M65 13 L66.2 16 L69.5 16 L67 18 L68 21 L65 19.2 L62 21 L63 18 L60.5 16 L63.8 16 Z"
+    fill="#fff3e0" opacity="0.65"/>
+</svg>