feat(web): add dispatchFor transport helper for same-origin proxy

packages/web/src/test/dispatch.test.ts

@@ -0,0 +1,40 @@
+import { afterEach, describe, expect, it, vi } from "vitest";
+
+const { mockIsTauri } = vi.hoisted(() => ({ mockIsTauri: vi.fn() }));
+vi.mock("@/lib/platform", () => ({ isTauri: () => mockIsTauri() }));
+
+import { API_PREFIX, dispatchFor, PROXY_REJECT_HEADER, UPSTREAM_HEADER } from "@/lib/dispatch";
+
+afterEach(() => mockIsTauri.mockReset());
+
+describe("dispatchFor — web mode", () => {
+	it("targets the /api prefix and carries the upstream header", () => {
+		mockIsTauri.mockReturnValue(false);
+		const d = dispatchFor({ baseUrl: "https://honcho.example.net/", token: "" });
+		expect(d.baseUrl).toBe(API_PREFIX);
+		expect(d.headers[UPSTREAM_HEADER]).toBe("https://honcho.example.net");
+		expect(d.headers.Authorization).toBeUndefined();
+	});
+
+	it("adds Authorization only when a token is present", () => {
+		mockIsTauri.mockReturnValue(false);
+		const d = dispatchFor({ baseUrl: "https://honcho.example.net", token: "sk-1" });
+		expect(d.headers.Authorization).toBe("Bearer sk-1");
+	});
+});
+
+describe("dispatchFor — tauri mode", () => {
+	it("targets the absolute URL with no upstream header", () => {
+		mockIsTauri.mockReturnValue(true);
+		const d = dispatchFor({ baseUrl: "https://honcho.example.net", token: "sk-1" });
+		expect(d.baseUrl).toBe("https://honcho.example.net");
+		expect(d.headers[UPSTREAM_HEADER]).toBeUndefined();
+		expect(d.headers.Authorization).toBe("Bearer sk-1");
+	});
+});
+
+describe("proxy reject header constant", () => {
+	it("is the agreed sentinel name", () => {
+		expect(PROXY_REJECT_HEADER).toBe("X-Honcho-Proxy-Reject");
+	});
+});