feat: finish the homepage plugin, move service links and canvas out of core (B19)

plugins/homepage/tests/backend/url.test.ts

@@ -0,0 +1,28 @@
+import { describe, expect, it } from "vitest";
+import {
+  isValidServiceLinkUrl,
+  normalizeServiceLinkUrl,
+} from "../../src/backend/url.js";
+
+describe("service link URL handling", () => {
+  it("keeps explicit http and https URLs", () => {
+    expect(normalizeServiceLinkUrl("https://example.com")).toBe(
+      "https://example.com",
+    );
+    expect(normalizeServiceLinkUrl("http://192.168.1.10:8080")).toBe(
+      "http://192.168.1.10:8080",
+    );
+  });
+
+  it("adds http to bare service addresses", () => {
+    expect(normalizeServiceLinkUrl("192.168.1.10:8080")).toBe(
+      "http://192.168.1.10:8080",
+    );
+    expect(normalizeServiceLinkUrl("termix.local")).toBe("http://termix.local");
+  });
+
+  it("rejects unsupported schemes", () => {
+    expect(isValidServiceLinkUrl("ssh://example.com")).toBe(false);
+    expect(isValidServiceLinkUrl("javascript:alert(1)")).toBe(false);
+  });
+});