Add projects

backend/internal/home/global.go

@@ -0,0 +1,27 @@
+package home
+
+import "sync/atomic"
+
+var currentClient atomic.Pointer[Client]
+
+// SetCurrent sets the active home client used by runtime integrations.
+func SetCurrent(client *Client) {
+	currentClient.Store(client)
+}
+
+// Current returns the active home client instance, if any.
+func Current() *Client {
+	return currentClient.Load()
+}
+
+// ClearCurrent removes the active home client.
+func ClearCurrent() {
+	currentClient.Store(nil)
+}
+
+// ClearCurrentIf removes the active client only when it is client.
+func ClearCurrentIf(client *Client) {
+	if client != nil {
+		currentClient.CompareAndSwap(client, nil)
+	}
+}