implement CalDAV MCP server v1 with streamable HTTP tools

tests/util.test.ts

@@ -0,0 +1,14 @@
+import { describe, expect, it } from "vitest";
+import { normalizeHref } from "../src/util.js";
+
+describe("normalizeHref", () => {
+  it("resolves relative href against base", () => {
+    const href = normalizeHref("/caldav/user/Calendar/personal/", "https://caldav.example.com/caldav");
+    expect(href).toBe("https://caldav.example.com/caldav/user/Calendar/personal/");
+  });
+
+  it("strips URL fragment", () => {
+    const href = normalizeHref("https://caldav.example.com/caldav/user/Calendar/personal/#fragment", "https://caldav.example.com/caldav");
+    expect(href).toBe("https://caldav.example.com/caldav/user/Calendar/personal/");
+  });
+});