feat: MachineBridge 추가 및 fetch API를 HostObject 호출로 전환

- WebView2 HostObject 기반 MachineBridge 브릿지 클래스 추가
  - MachineBridge.cs (메인), Login, Dashboard, Todo, Common, Jobreport, Kuntae, Project 모듈
- WebSocketServer.cs 추가 (실시간 통신용)
- fDashboardNew 다이얼로그 추가
- Jobreport/index.html, Project/index.html의 fetch API를 machine HostObject 호출로 전환
- DashBoardController.cs의 gcode null 처리 추가
- 사용하지 않는 파일 삭제 (navigation.html, common-nav.js, navigation.js, _add_to_project.py, _project_updater.js)

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

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

Project/Web/MachineBridge/MachineBridge.Kuntae.cs

@@ -0,0 +1,95 @@
+using System;
+using System.Collections.Generic;
+using System.Data;
+using System.Data.SqlClient;
+using Newtonsoft.Json;
+using FCOMMON;
+
+namespace Project.Web
+{
+    public partial class MachineBridge
+    {
+        #region Kuntae API
+
+        /// <summary>
+        /// 근태 목록 조회
+        /// </summary>
+        public string Kuntae_GetList(string sd, string ed)
+        {
+            try
+            {
+                var sql = @"SELECT k.*, u.name as userName
+                           FROM EETGW_Kuntae k WITH (nolock)
+                           LEFT JOIN Users u ON k.uid = u.id
+                           WHERE k.gcode = @gcode AND k.uid = @uid";
+
+                var parameters = new List<SqlParameter>();
+                parameters.Add(new SqlParameter("@gcode", info.Login.gcode));
+                parameters.Add(new SqlParameter("@uid", info.Login.no));
+
+                if (!string.IsNullOrEmpty(sd))
+                {
+                    sql += " AND k.kdate >= @sd";
+                    parameters.Add(new SqlParameter("@sd", sd));
+                }
+                if (!string.IsNullOrEmpty(ed))
+                {
+                    sql += " AND k.kdate <= @ed";
+                    parameters.Add(new SqlParameter("@ed", ed));
+                }
+
+                sql += " ORDER BY k.kdate DESC";
+
+                var cs = Properties.Settings.Default.gwcs;
+                var cn = new SqlConnection(cs);
+                var cmd = new SqlCommand(sql, cn);
+                cmd.Parameters.AddRange(parameters.ToArray());
+
+                var da = new SqlDataAdapter(cmd);
+                var dt = new DataTable();
+                da.Fill(dt);
+                da.Dispose();
+                cmd.Dispose();
+                cn.Dispose();
+
+                return JsonConvert.SerializeObject(new { Success = true, Data = dt }, new JsonSerializerSettings { NullValueHandling = NullValueHandling.Ignore });
+            }
+            catch (Exception ex)
+            {
+                return JsonConvert.SerializeObject(new { Success = false, Message = ex.Message });
+            }
+        }
+
+        /// <summary>
+        /// 근태 삭제
+        /// </summary>
+        public string Kuntae_Delete(int id)
+        {
+            try
+            {
+                var sql = "DELETE FROM EETGW_Kuntae WHERE idx = @idx AND gcode = @gcode AND uid = @uid";
+
+                var cs = Properties.Settings.Default.gwcs;
+                var cn = new SqlConnection(cs);
+                var cmd = new SqlCommand(sql, cn);
+                cmd.Parameters.AddWithValue("@idx", id);
+                cmd.Parameters.AddWithValue("@gcode", info.Login.gcode);
+                cmd.Parameters.AddWithValue("@uid", info.Login.no);
+
+                cn.Open();
+                var result = cmd.ExecuteNonQuery();
+                cn.Close();
+                cmd.Dispose();
+                cn.Dispose();
+
+                return JsonConvert.SerializeObject(new { Success = result > 0, Message = result > 0 ? "삭제되었습니다." : "삭제에 실패했습니다." });
+            }
+            catch (Exception ex)
+            {
+                return JsonConvert.SerializeObject(new { Success = false, Message = ex.Message });
+            }
+        }
+
+        #endregion
+    }
+}