polish: 全面清理旧名引用 + 英文 README 对齐中文版质量

- .gitignore/.env.example: agent-eyes → agent-reach
- README.md: 暂去掉 logo 图片标签（logo 待定）
- docs/README_en.md: 完全重写，对齐中文版的表格/徽章/结构
- SKILL.md: setup → configure
- sync-upstream.sh: 更新路径到 agent_reach/channels
- 提交 3 个 logo 候选文件（最终选定后改名 logo.png）

docs/assets/logo-1.svg

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" width="512" height="512">
+  <defs>
+    <linearGradient id="grad1" x1="0%" y1="0%" x2="100%" y2="100%">
+      <stop offset="0%" style="stop-color:#0066FF"/>
+      <stop offset="100%" style="stop-color:#00AAFF"/>
+    </linearGradient>
+    <clipPath id="clip-circle">
+      <circle cx="256" cy="256" r="140"/>
+    </clipPath>
+  </defs>
+  
+  <rect width="512" height="512" fill="#0A0A1A"/>
+  
+  <!-- 外圆环 - "边界" -->
+  <circle cx="256" cy="256" r="160" fill="none" stroke="url(#grad1)" stroke-width="8" opacity="0.3"/>
+  <circle cx="256" cy="256" r="140" fill="none" stroke="url(#grad1)" stroke-width="3" opacity="0.6"/>
+  
+  <!-- 内部：Agent 核心点 -->
+  <circle cx="220" cy="256" r="24" fill="url(#grad1)"/>
+  
+  <!-- "穿越"弧线 — 从核心出发，穿过圆环边界，延伸到外面 -->
+  <path d="M 230 256 Q 320 180, 420 200" 
+        fill="none" stroke="url(#grad1)" stroke-width="6" stroke-linecap="round" opacity="0.9"/>
+  <path d="M 230 256 Q 320 256, 420 256" 
+        fill="none" stroke="url(#grad1)" stroke-width="6" stroke-linecap="round" opacity="0.7"/>
+  <path d="M 230 256 Q 320 330, 420 312" 
+        fill="none" stroke="url(#grad1)" stroke-width="6" stroke-linecap="round" opacity="0.5"/>
+  
+  <!-- 目标点：穿越后的落脚 -->
+  <circle cx="420" cy="200" r="8" fill="#00AAFF" opacity="0.9"/>
+  <circle cx="420" cy="256" r="8" fill="#00AAFF" opacity="0.7"/>
+  <circle cx="420" cy="312" r="8" fill="#00AAFF" opacity="0.5"/>
+</svg>

docs/assets/logo-2.svg

@@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" width="512" height="512">
+  <defs>
+    <radialGradient id="glow2" cx="50%" cy="50%" r="50%">
+      <stop offset="0%" style="stop-color:#0066FF;stop-opacity:0.3"/>
+      <stop offset="100%" style="stop-color:#0066FF;stop-opacity:0"/>
+    </radialGradient>
+    <linearGradient id="line-grad" x1="0%" y1="0%" x2="100%" y2="0%">
+      <stop offset="0%" style="stop-color:#0066FF"/>
+      <stop offset="100%" style="stop-color:#00CCFF"/>
+    </linearGradient>
+  </defs>
+  
+  <rect width="512" height="512" fill="#0A0A1A"/>
+  
+  <!-- 光晕背景 -->
+  <circle cx="230" cy="256" r="200" fill="url(#glow2)"/>
+  
+  <!-- 连接线 — 6 条，不同长度、粗细、透明度 -->
+  <line x1="230" y1="256" x2="130" y2="140" stroke="#0066FF" stroke-width="2" opacity="0.4"/>
+  <line x1="230" y1="256" x2="100" y2="256" stroke="#0066FF" stroke-width="2" opacity="0.35"/>
+  <line x1="230" y1="256" x2="130" y2="372" stroke="#0066FF" stroke-width="2" opacity="0.3"/>
+  <line x1="230" y1="256" x2="310" y2="140" stroke="#0066FF" stroke-width="2" opacity="0.45"/>
+  <line x1="230" y1="256" x2="310" y2="372" stroke="#0066FF" stroke-width="2" opacity="0.35"/>
+  
+  <!-- "Reach" 线 — 更长、更粗、有渐变 -->
+  <line x1="230" y1="256" x2="440" y2="220" stroke="url(#line-grad)" stroke-width="4" opacity="0.9"/>
+  
+  <!-- 中心：Agent 核心 -->
+  <polygon points="230,232 246,248 246,264 230,280 214,264 214,248" 
+           fill="#0066FF" opacity="0.9"/>
+  <circle cx="230" cy="256" r="10" fill="#00CCFF"/>
+  
+  <!-- 普通节点 -->
+  <circle cx="130" cy="140" r="6" fill="#0066FF" opacity="0.4"/>
+  <circle cx="100" cy="256" r="6" fill="#0066FF" opacity="0.35"/>
+  <circle cx="130" cy="372" r="6" fill="#0066FF" opacity="0.3"/>
+  <circle cx="310" cy="140" r="6" fill="#0066FF" opacity="0.45"/>
+  <circle cx="310" cy="372" r="6" fill="#0066FF" opacity="0.35"/>
+  
+  <!-- "Reach" 节点 — 更大，带光环 -->
+  <circle cx="440" cy="220" r="20" fill="#0066FF" opacity="0.15"/>
+  <circle cx="440" cy="220" r="12" fill="#00AAFF" opacity="0.6"/>
+  <circle cx="440" cy="220" r="6" fill="#00CCFF" opacity="0.9"/>
+  
+  <!-- Reach 节点的信号弧 -->
+  <path d="M 454 200 A 20 20 0 0 1 454 240" 
+        fill="none" stroke="#00CCFF" stroke-width="2" stroke-linecap="round" opacity="0.5"/>
+  <path d="M 464 192 A 30 30 0 0 1 464 248" 
+        fill="none" stroke="#00CCFF" stroke-width="1.5" stroke-linecap="round" opacity="0.3"/>
+</svg>

docs/assets/logo-3.svg

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" width="512" height="512">
+  <defs>
+    <linearGradient id="grad3" x1="0%" y1="0%" x2="100%" y2="100%">
+      <stop offset="0%" style="stop-color:#0066FF"/>
+      <stop offset="100%" style="stop-color:#00BBFF"/>
+    </linearGradient>
+  </defs>
+  
+  <rect width="512" height="512" fill="#0A0A1A"/>
+  
+  <!-- 容器圆环 -->
+  <circle cx="240" cy="256" r="155" fill="none" stroke="url(#grad3)" stroke-width="4" opacity="0.5"/>
+  
+  <!-- 字母 A — 极简三角 -->
+  <path d="M 160 360 L 220 150 L 280 360" 
+        fill="none" stroke="#0066FF" stroke-width="14" stroke-linecap="round" stroke-linejoin="round"/>
+  <!-- A 的横线 -->
+  <line x1="178" y1="290" x2="262" y2="290" stroke="#0066FF" stroke-width="10" stroke-linecap="round"/>
+  
+  <!-- 字母 R — 共用 A 的右竖线 -->
+  <!-- R 的弧顶 -->
+  <path d="M 280 360 L 280 150 Q 340 150, 340 210 Q 340 270, 280 270" 
+        fill="none" stroke="#00AAFF" stroke-width="14" stroke-linecap="round" stroke-linejoin="round"/>
+  
+  <!-- R 的腿 — "Reach" 线，穿出圆环 -->
+  <line x1="300" y1="270" x2="420" y2="390" 
+        stroke="url(#grad3)" stroke-width="10" stroke-linecap="round"/>
+  
+  <!-- Reach 末端信号 -->
+  <circle cx="420" cy="390" r="8" fill="#00CCFF" opacity="0.8"/>
+  <circle cx="420" cy="390" r="16" fill="none" stroke="#00CCFF" stroke-width="2" opacity="0.4"/>
+  <circle cx="420" cy="390" r="26" fill="none" stroke="#00CCFF" stroke-width="1.5" opacity="0.2"/>
+</svg>