refactor: remove additional dead exports and unused actions

Remove buildFontUrl, measureText, uncached, invalidateCache, fetchJsonWithFlareSolver, upsertPermission, deletePermission, bulkImportPermissions, clearAllPermissions, bulkDeletePermissions, bulkDeletePhotos, userReplyTicket, closeTicketByUser. Update staff-smoke-contract test for bulkDeletePhotos removal.

src/lib/staff-smoke-contract.test.ts

@@ -3,11 +3,10 @@ import { join } from "node:path";
 import { describe, expect, it } from "vitest";
 
 describe("staff smoke contract", () => {
-	it("gates photos delete/bulk with PAGES_EDIT", () => {
+	it("gates photos delete with PAGES_EDIT", () => {
 		const src = readFileSync("src/actions/admin-photos.ts", "utf8");
 		expect(src).toContain("PERMS.PAGES_EDIT");
 		expect(src).toContain("deletePhoto");
-		expect(src).toContain("bulkDeletePhotos");
 		expect(src).toContain("logStaffActivity");
 		expect(existsSync("src/app/admin/photos/page.tsx")).toBe(true);
 		expect(readFileSync("src/app/admin/photos/page.tsx", "utf8")).toContain(