feat(docker): prepare portable images with runtime hotel configuration

src/lib/format.test.ts

@@ -27,14 +27,14 @@ describe("avatarImageUrl", () => {
 		expect(url).toContain("figure=hr-100");
 		expect(url).toContain("size=l");
 		expect(url).toContain("headonly=1");
-		expect(url.startsWith("https://img.example.com?")).toBe(true);
+		expect(url.startsWith("/api/imaging/avatar?")).toBe(true);
 	});
 
 	it("preserves the exact user look instead of replacing it with a default figure", () => {
 		const look =
 			"hr-11782-40-40.hd-180-7-14.ch-11592-66.lg-10726-79-1408.sh-11764-1408.ha-11958-70-1408.wa-2007-0";
 
-		const url = new URL(avatarImageUrl(look));
+		const url = new URL(avatarImageUrl(look), "https://hotel.test");
 
 		expect(url.searchParams.get("figure")).toBe(look);
 	});