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>

clear_database.sql

@@ -0,0 +1,83 @@
+-- HR Position System - 清空資料庫腳本
+-- 只清空業務資料，保留表結構和參照代碼
+-- 執行前請確認備份重要資料
+
+USE hr_position_system;
+
+-- ============================================================
+-- 1. 停用外鍵檢查（避免刪除順序問題）
+-- ============================================================
+SET FOREIGN_KEY_CHECKS = 0;
+
+-- ============================================================
+-- 2. 清空業務資料表（保留表結構）
+-- ============================================================
+
+-- 清空組織崗位關聯表
+TRUNCATE TABLE HR_position_organization_positions;
+
+-- 清空部級單位表
+TRUNCATE TABLE HR_position_departments;
+
+-- 清空處級單位表
+TRUNCATE TABLE HR_position_divisions;
+
+-- 清空事業體表
+TRUNCATE TABLE HR_position_business_units;
+
+-- 清空崗位描述表
+TRUNCATE TABLE HR_position_job_descriptions;
+
+-- 清空職務基礎資料表
+TRUNCATE TABLE HR_position_jobs;
+
+-- 清空崗位基礎資料表
+TRUNCATE TABLE HR_position_positions;
+
+-- 清空審計日誌表
+TRUNCATE TABLE HR_position_audit_logs;
+
+-- ============================================================
+-- 3. 重新啟用外鍵檢查
+-- ============================================================
+SET FOREIGN_KEY_CHECKS = 1;
+
+-- ============================================================
+-- 4. 確認參照代碼表資料保留（不清空）
+-- ============================================================
+-- reference_codes 表保留所有參照代碼資料
+-- 包含：POSITION_CATEGORY, POSITION_NATURE, POSITION_LEVEL,
+--       JOB_CATEGORY, EDUCATION, SALARY_RANGE, WORK_LOCATION,
+--       EMP_ATTRIBUTE, RECRUIT_POSITION, TITLE_REQ
+
+-- 確認參照代碼數量
+SELECT code_type, COUNT(*) as count
+FROM HR_position_reference_codes
+GROUP BY code_type
+ORDER BY code_type;
+
+-- ============================================================
+-- 5. 顯示清空結果
+-- ============================================================
+SELECT 'HR_position_organization_positions' as table_name, COUNT(*) as row_count FROM HR_position_organization_positions
+UNION ALL
+SELECT 'HR_position_departments', COUNT(*) FROM HR_position_departments
+UNION ALL
+SELECT 'HR_position_divisions', COUNT(*) FROM HR_position_divisions
+UNION ALL
+SELECT 'HR_position_business_units', COUNT(*) FROM HR_position_business_units
+UNION ALL
+SELECT 'HR_position_job_descriptions', COUNT(*) FROM HR_position_job_descriptions
+UNION ALL
+SELECT 'HR_position_jobs', COUNT(*) FROM HR_position_jobs
+UNION ALL
+SELECT 'HR_position_positions', COUNT(*) FROM HR_position_positions
+UNION ALL
+SELECT 'HR_position_audit_logs', COUNT(*) FROM HR_position_audit_logs
+UNION ALL
+SELECT 'HR_position_reference_codes (保留)', COUNT(*) FROM HR_position_reference_codes;
+
+-- ============================================================
+-- 完成訊息
+-- ============================================================
+SELECT '資料庫清空完成！參照代碼已保留。' as message;