feat: React 프론트엔드 기능 대폭 확장

- 월별근무표: 휴일/근무일 관리, 자동 초기화
- 메일양식: 템플릿 CRUD, To/CC/BCC 설정
- 그룹정보: 부서 관리, 비트 연산 기반 권한 설정
- 업무일지: 수정 성공 메시지 제거, 오늘 근무시간 필터링 수정
- 웹소켓 메시지 type 충돌 버그 수정

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

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

Project/Dialog/fDashboard.Designer.cs

@@ -0,0 +1,63 @@
+namespace Project.Dialog
+{
+    partial class fDashboard
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.label1 = new System.Windows.Forms.Label();
+            this.SuspendLayout();
+            // 
+            // label1
+            // 
+            this.label1.Dock = System.Windows.Forms.DockStyle.Fill;
+            this.label1.Font = new System.Drawing.Font("맑은 고딕", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(129)));
+            this.label1.ForeColor = System.Drawing.Color.DimGray;
+            this.label1.Location = new System.Drawing.Point(0, 0);
+            this.label1.Name = "label1";
+            this.label1.Size = new System.Drawing.Size(1063, 567);
+            this.label1.TabIndex = 0;
+            this.label1.Text = "요약 화면 구성 중 입니다.\r\n\r\n업무일지는 \"관리->업무일지->목록\" 을 사용하세요";
+            this.label1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
+            this.label1.Click += new System.EventHandler(this.label1_Click);
+            // 
+            // fDashboard
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 12F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(1063, 567);
+            this.Controls.Add(this.label1);
+            this.Name = "fDashboard";
+            this.Text = "요약";
+            this.ResumeLayout(false);
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.Label label1;
+    }
+}