Add live calendar state to Quickshell

config/dot/quickshell/shell.qml

@@ -261,6 +261,28 @@ ShellRoot {
         }
     }
 
+    IpcHandler {
+        target: "calendar-agenda"
+        function fixture(name: string): void { CalendarAgenda.applyFixture(name); }
+        function reset(): void { CalendarAgenda.clearFixture(); }
+        function refresh(): void { CalendarAgenda.refresh(); }
+        function open(): void { ShellState.open("notifications"); }
+        function close(): void { ShellState.close(); }
+        function select(date: string): void { CalendarAgenda.selectIsoDate(date); }
+        function status(): string {
+            return JSON.stringify({
+                phase: CalendarAgenda.phase,
+                fixture: CalendarAgenda.fixtureMode,
+                sourceCount: CalendarAgenda.sources.length,
+                eventCount: CalendarAgenda.events.length,
+                selectedDate: CalendarAgenda.selectedDateKey,
+                selectedEventCount: CalendarAgenda.selectedEvents.length,
+                capsuleVisible: CalendarAgenda.capsuleVisible,
+                capsuleText: CalendarAgenda.capsuleText
+            });
+        }
+    }
+
     IpcHandler {
         target: "clipboard"
         function toggle(): void { ShellState.toggle("clipboard"); }