feat(employee): Add birthdays and work anniversaries indicator in form

erpnext/setup/doctype/employee/employee.js

@@ -45,6 +45,63 @@ frappe.ui.form.on("Employee", {
 
 	refresh: function (frm) {
 		frm.fields_dict.date_of_birth.datepicker.update({ maxDate: new Date() });
+
+		frm.trigger("add_anniversary_indicator");
+	},
+
+	date_of_birth: function (frm) {
+		frm.trigger("add_anniversary_indicator");
+	},
+
+	date_of_joining: function (frm) {
+		frm.trigger("add_anniversary_indicator");
+	},
+
+	add_anniversary_indicator: function (frm) {
+		if (!frm.sidebar || !frm.sidebar.sidebar) return;
+
+		let $sidebar = frm.sidebar.sidebar;
+		let $indicator_section = $sidebar.find(".anniversary-indicator-section");
+
+		if (!$indicator_section.length) {
+			$indicator_section = $(`
+				<div class="sidebar-section anniversary-indicator-section border-bottom">
+					<div class="anniversary-content"></div>
+				</div>
+			`).insertAfter($sidebar.find(".sidebar-meta-details"));
+		}
+
+		let content = "";
+		let today = moment().startOf("day");
+
+		if (frm.doc.date_of_birth) {
+			let dob = moment(frm.doc.date_of_birth);
+			if (dob.date() === today.date() && dob.month() === today.month()) {
+				content += `<div class="mb-1"><span class="indicator green"></span> ${__(
+					"Today is their Birthday!"
+				)}</div>`;
+			}
+		}
+
+		if (frm.doc.date_of_joining) {
+			let doj = moment(frm.doc.date_of_joining);
+			if (doj.date() === today.date() && doj.month() === today.month()) {
+				let years = today.year() - doj.year();
+				if (years > 0) {
+					content += `<div class="mb-1"><span class="indicator green"></span> ${__(
+						"Today is their {0} Year Work Anniversary!",
+						[years]
+					)}</div>`;
+				}
+			}
+		}
+
+		if (content) {
+			$indicator_section.find(".anniversary-content").html(content);
+			$indicator_section.show();
+		} else {
+			$indicator_section.hide();
+		}
 	},
 
 	prefered_contact_email: function (frm) {