feat: streamline dashboard, fix docs, optimize UI width

- Remove AI角色 quick action, keep only 回复日志/插件设置/刷新数据
- Fix LogsView filter/batch bar width to match content area (mx-4 mt-2 -> m-4 mb-0)
- Fix docs: Halo version 2.23->2.25, GitHub link nxxy335->sunny-335, Cravatar link, variable name {{conversation}}->{{conversation_history}}
- Add missing settings docs (maxConversationRounds, rateLimitPerMinute, enabledPresets)
- Update README: remove version display, update changelog
- Update version to 1.0.0-beta.2-r8k4n2

ui/src/views/HomeView.vue

@@ -112,7 +112,7 @@
       <div class="mt-4">
         <VCard :body-class="['!p-5']">
           <h3 class="text-sm font-medium text-gray-500 mb-3">快捷操作</h3>
-          <div class="grid grid-cols-2 gap-2 sm:grid-cols-4">
+          <div class="grid grid-cols-1 gap-2 sm:grid-cols-3">
             <button
               class="flex items-center gap-2 px-3 py-2.5 rounded-md bg-gray-50 hover:bg-gray-100 transition-colors text-sm text-gray-700"
               @click="$router.push({ name: 'CommentAiAutopilotLogs' })"
@@ -132,15 +132,6 @@
               </svg>
               插件设置
             </button>
-            <button
-              class="flex items-center gap-2 px-3 py-2.5 rounded-md bg-gray-50 hover:bg-gray-100 transition-colors text-sm text-gray-700"
-              @click="$router.push({ name: 'CommentAiAutopilotSettings' })"
-            >
-              <svg class="w-4 h-4 text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M16 7a4 4 0 11-8 0 4 4 0 018 0zM12 14a7 7 0 00-7 7h14a7 7 0 00-7-7z" />
-              </svg>
-              AI角色
-            </button>
             <button
               class="flex items-center gap-2 px-3 py-2.5 rounded-md bg-gray-50 hover:bg-gray-100 transition-colors text-sm text-gray-700"
               @click="refreshData"

ui/src/views/LogsView.vue

@@ -10,7 +10,7 @@
     </VPageHeader>
 
     <!-- Batch Operation Toolbar -->
-    <div v-if="selectedNames.size > 0" class="mx-4 mt-2 flex items-center gap-3 bg-blue-50 border border-blue-200 rounded-lg px-4 py-2.5">
+    <div v-if="selectedNames.size > 0" class="m-4 mb-0 flex items-center gap-3 bg-blue-50 border border-blue-200 rounded-lg px-4 py-2.5">
       <span class="text-sm text-blue-700">已选择 {{ selectedNames.size }} 项</span>
       <button
         class="text-xs px-3 py-1 rounded bg-green-600 text-white hover:bg-green-700 transition-colors"
@@ -39,7 +39,7 @@
     </div>
 
     <!-- Filter Bar -->
-    <div class="mx-4 mt-2 flex items-center gap-3">
+    <div class="m-4 mb-0 flex items-center gap-3">
       <select
         v-model="filterStatus"
         class="rounded-md border border-gray-300 pl-3 pr-8 py-1.5 text-sm focus:border-blue-500 focus:outline-none focus:ring-1 focus:ring-blue-500"