refactor: migrate legacy color classes to inline tailwind text utilities

Replace all usages of legacy `.color-*` and `.text-color-*` SCSS utility classes with inline Tailwind `text-[#hexcode]` arbitrary value classes. Remove the deprecated `src/static/scss/colors.scss` file, and fix minor formatting/indentation issues across multiple component files.

src/pages/ChatModule/AnswerComponent/index.vue

@@ -5,7 +5,7 @@
     <view class="flex flex-col px-[16px] pt-[16px] pb-[12px] border-box" @click="lookDetailAction">
       <view v-if="tag" class="long-answer-tag" :style="longAnswerTagStyle">{{ tag }}</view>
       <view v-if="title" class="flex flex-row flex-items-start flex-justify-start mb-4">
-        <text class="font-size-16 font-600 text-color-900"> {{ title }}</text>
+        <text class="font-size-16 font-600 text-[#0B5C2D]"> {{ title }}</text>
       </view>
       <!-- 文字内容，根据数据模式限制预览行数 -->
       <view v-if="processedContent" class="answer-content font-size-12 font-color-600" :style="answerContentStyle">
@@ -17,7 +17,7 @@
         <ChatLoading />
       </view>
       <view v-if="isOverflow" class="flex flex-row flex-items-center flex-justify-between mt-12">
-        <text class="font-size-12 font-800 color-CBD5E1 mr-4">查看完整{{ tag }}</text>
+        <text class="font-size-12 font-800 text-[#cbd5e1] mr-4">查看完整{{ tag }}</text>
         <uni-icons type="right" size="16" color="#CBD5E1"></uni-icons>
       </view>