feat(db): add pricing config fields to proxy_config table

- Add default_cost_multiplier field per app type
- Add pricing_model_source field (request/response)
- Add request_model field to proxy_request_logs table
- Implement schema migration v5

tests/components/GlobalProxySettings.test.tsx

@@ -0,0 +1,83 @@
+import { render, screen, fireEvent, waitFor } from "@testing-library/react";
+import { describe, it, expect, vi, beforeEach } from "vitest";
+import { GlobalProxySettings } from "@/components/settings/GlobalProxySettings";
+
+vi.mock("react-i18next", () => ({
+  useTranslation: () => ({ t: (key: string) => key }),
+}));
+
+const mutateAsyncMock = vi.fn();
+const testMutateAsyncMock = vi.fn();
+const scanMutateAsyncMock = vi.fn();
+
+vi.mock("@/hooks/useGlobalProxy", () => ({
+  useGlobalProxyUrl: () => ({ data: "http://127.0.0.1:7890", isLoading: false }),
+  useSetGlobalProxyUrl: () => ({
+    mutateAsync: mutateAsyncMock,
+    isPending: false,
+  }),
+  useTestProxy: () => ({
+    mutateAsync: testMutateAsyncMock,
+    isPending: false,
+  }),
+  useScanProxies: () => ({
+    mutateAsync: scanMutateAsyncMock,
+    isPending: false,
+  }),
+}));
+
+describe("GlobalProxySettings", () => {
+  beforeEach(() => {
+    mutateAsyncMock.mockReset();
+    testMutateAsyncMock.mockReset();
+    scanMutateAsyncMock.mockReset();
+  });
+
+  it("renders proxy URL input with saved value", async () => {
+    render(<GlobalProxySettings />);
+
+    const urlInput = screen.getByPlaceholderText(
+      "http://127.0.0.1:7890 / socks5://127.0.0.1:1080",
+    );
+    // URL 对象会在末尾添加斜杠
+    await waitFor(() =>
+      expect(urlInput).toHaveValue("http://127.0.0.1:7890/"),
+    );
+  });
+
+  it("saves proxy URL when save button is clicked", async () => {
+    render(<GlobalProxySettings />);
+
+    const urlInput = screen.getByPlaceholderText(
+      "http://127.0.0.1:7890 / socks5://127.0.0.1:1080",
+    );
+
+    fireEvent.change(urlInput, { target: { value: "http://localhost:8080" } });
+
+    const saveButton = screen.getByRole("button", { name: "common.save" });
+    fireEvent.click(saveButton);
+
+    await waitFor(() => expect(mutateAsyncMock).toHaveBeenCalled());
+    // 没有用户名时，URL 不经过 URL 对象解析，所以没有尾部斜杠
+    expect(mutateAsyncMock).toHaveBeenCalledWith("http://localhost:8080");
+  });
+
+  it("clears proxy URL when clear button is clicked", async () => {
+    render(<GlobalProxySettings />);
+
+    const urlInput = screen.getByPlaceholderText(
+      "http://127.0.0.1:7890 / socks5://127.0.0.1:1080",
+    );
+
+    // Wait for initial value to load
+    await waitFor(() =>
+      expect(urlInput).toHaveValue("http://127.0.0.1:7890/"),
+    );
+
+    // Click clear button
+    const clearButton = screen.getByTitle("settings.globalProxy.clear");
+    fireEvent.click(clearButton);
+
+    expect(urlInput).toHaveValue("");
+  });
+});

tests/setupGlobals.ts

@@ -0,0 +1,26 @@
+const storage = new Map<string, string>();
+
+if (
+  typeof globalThis.localStorage === "undefined" ||
+  typeof globalThis.localStorage?.getItem !== "function"
+) {
+  Object.defineProperty(globalThis, "localStorage", {
+    value: {
+      getItem: (key: string) => storage.get(key) ?? null,
+      setItem: (key: string, value: string) => {
+        storage.set(key, String(value));
+      },
+      removeItem: (key: string) => {
+        storage.delete(key);
+      },
+      clear: () => {
+        storage.clear();
+      },
+      key: (index: number) => Array.from(storage.keys())[index] ?? null,
+      get length() {
+        return storage.size;
+      },
+    },
+    configurable: true,
+  });
+}