Revert "PHP Rebuild"

This reverts commit 2ef3654841.

src/lib/business/get-acting-business-context.ts

@@ -0,0 +1,57 @@
+import { cache } from "react";
+import { auth } from "@/auth";
+import { prisma } from "@/lib/db/prisma";
+import { isSuperAdmin } from "@/lib/auth/permissions";
+import { getPrimaryBusiness } from "@/lib/business/get-primary-business";
+
+/**
+ * Resolves "which business is the signed-in user acting on behalf of" for
+ * pages/actions that only need the business id/name/timezone — not full
+ * staff identity (see getActingStaff for that, which stays the right
+ * choice for anything that needs a real StaffProfile id, e.g. loyalty
+ * stamp authorship or appointment reassignment).
+ *
+ * A regular staff member/owner resolves via their StaffProfile, same as
+ * getActingStaff. A Super Administrator (see scripts/ensure-super-admin.ts)
+ * deliberately has no StaffProfile at all — that's what keeps them out of
+ * the Team list/barber picker/appointment FKs by construction rather than
+ * a filter — so they resolve straight to the app's one business instead
+ * (v1 is single-business, same assumption getPrimaryBusiness() already
+ * makes everywhere else). Returns null only for a signed-in user who is
+ * neither staff nor a super admin.
+ */
+export const getActingBusinessContext = cache(async () => {
+  const session = await auth();
+  if (!session?.user?.id) return null;
+
+  const staffProfile = await prisma.staffProfile.findUnique({
+    where: { userId: session.user.id },
+    select: { id: true, businessId: true, business: { select: { name: true, timezone: true } } },
+  });
+  if (staffProfile) {
+    return {
+      userId: session.user.id,
+      staffId: staffProfile.id,
+      businessId: staffProfile.businessId,
+      businessName: staffProfile.business.name,
+      businessTimezone: staffProfile.business.timezone,
+    };
+  }
+
+  if (!(await isSuperAdmin(session.user.id))) return null;
+
+  const business = await getPrimaryBusiness();
+  return {
+    userId: session.user.id,
+    // A Super Administrator has no StaffProfile by design (see isSuperAdmin) —
+    // null here is what lets callers tell "acting as real staff" apart from
+    // "acting as a Super Administrator with no personal staff identity",
+    // e.g. to withhold note authorship (see CustomerNotes' actingStaffId).
+    staffId: null,
+    businessId: business.id,
+    businessName: business.name,
+    businessTimezone: business.timezone,
+  };
+});
+
+export type ActingBusinessContext = NonNullable<Awaited<ReturnType<typeof getActingBusinessContext>>>;