refactor(db,frontend): Improve queries and modularize frontend

- Replaced SELECT* queries in 8 models with explicit columns.
- Began modularizing work-report-calendar.js by creating CalendarAPI.js, CalendarState.js, and CalendarView.js.
- Refactored manage-project.js to use global API helpers.
- Fixed API container crash by adding missing volume mounts to docker-compose.yml.
- Added new migration for missing columns in the projects table.
- Documented current DB schema and deployment notes.

api.hyungi.net/models/WorkAnalysis.js

@@ -427,6 +427,51 @@ class WorkAnalysis {
             throw new Error(`대시보드 데이터 조회 실패: ${error.message}`);
         }
     }
+    // 프로젝트별-작업별 시간 분석용 데이터 조회
+    async getProjectWorkTypeRawData(startDate, endDate) {
+        const query = `
+            SELECT
+                COALESCE(p.project_id, dwr.project_id) as project_id,
+                COALESCE(p.project_name, CONCAT('프로젝트 ', dwr.project_id)) as project_name,
+                COALESCE(p.job_no, 'N/A') as job_no,
+                dwr.work_type_id,
+                COALESCE(wt.name, CONCAT('작업유형 ', dwr.work_type_id)) as work_type_name,
+
+                -- 총 시간
+                SUM(dwr.work_hours) as total_hours,
+
+                -- 정규 시간 (work_status_id = 1)
+                SUM(CASE WHEN dwr.work_status_id = 1 THEN dwr.work_hours ELSE 0 END) as regular_hours,
+
+                -- 에러 시간 (work_status_id = 2)
+                SUM(CASE WHEN dwr.work_status_id = 2 THEN dwr.work_hours ELSE 0 END) as error_hours,
+
+                -- 작업 건수
+                COUNT(*) as total_reports,
+                COUNT(CASE WHEN dwr.work_status_id = 1 THEN 1 END) as regular_reports,
+                COUNT(CASE WHEN dwr.work_status_id = 2 THEN 1 END) as error_reports,
+
+                -- 에러율 계산
+                ROUND(
+                    (SUM(CASE WHEN dwr.work_status_id = 2 THEN dwr.work_hours ELSE 0 END) /
+                     SUM(dwr.work_hours)) * 100, 2
+                ) as error_rate_percent
+
+            FROM daily_work_reports dwr
+            LEFT JOIN projects p ON dwr.project_id = p.project_id
+            LEFT JOIN work_types wt ON dwr.work_type_id = wt.id
+            WHERE dwr.report_date BETWEEN ? AND ?
+            GROUP BY dwr.project_id, p.project_name, p.job_no, dwr.work_type_id, wt.name
+            ORDER BY p.project_name, wt.name
+        `;
+
+        try {
+            const [results] = await this.db.execute(query, [startDate, endDate]);
+            return results;
+        } catch (error) {
+            throw new Error(`프로젝트-작업유형별 원본 데이터 조회 실패: ${error.message}`);
+        }
+    }
 }
 
 module.exports = WorkAnalysis;