backup: 完成 HR_position_ 表格前綴重命名與欄位對照表整理

變更內容：
- 所有資料表加上 HR_position_ 前綴
- 整理完整欄位顯示名稱與 ID 對照表
- 模組化 JS 檔案 (admin.js, ai.js, csv.js 等)
- 專案結構優化 (docs/, scripts/, tests/ 等)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

images/logo.svg

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+
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+
+  <!-- 嘴巴 - 顯示為困惑的表情 -->
+  <path d="M 120 155 Q 150 145 180 155" stroke="#fff" stroke-width="4" fill="none" stroke-linecap="round"/>
+
+  <!-- 問號裝飾 -->
+  <text x="70" y="200" font-family="Arial, sans-serif" font-size="40" fill="#fff" font-weight="bold">?</text>
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+
+  <!-- AI 文字 -->
+  <text x="150" y="250" font-family="Arial, sans-serif" font-size="32" fill="#fff" font-weight="bold" text-anchor="middle">AI</text>
+</svg>