Make English the repository working language (#5)

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

packages/web/test/context.test.ts

@@ -7,23 +7,23 @@ import { describe, expect, it } from "vitest";
 import { DEFAULT_CONTEXT_WINDOW, resolveContextWindow } from "../src/lib/context";
 
 describe("resolveContextWindow", () => {
-  it("正数原样返回", () => {
+  it("positive numbers return as-is", () => {
     expect(resolveContextWindow(200000)).toBe(200000);
     expect(resolveContextWindow(1)).toBe(1);
   });
 
-  it("未配置（undefined / null）回退缺省 128000", () => {
+  it("unset (undefined / null) falls back to the default 128000", () => {
     expect(resolveContextWindow(undefined)).toBe(128000);
     expect(resolveContextWindow(null)).toBe(DEFAULT_CONTEXT_WINDOW);
   });
 
-  it("Trace 的 model_context_window 可能是字符串：数字串解析、`unknown` 回退", () => {
+  it("Trace's model_context_window may be a string: numeric strings parse, `unknown` falls back", () => {
     expect(resolveContextWindow("200000")).toBe(200000);
     expect(resolveContextWindow("unknown")).toBe(128000);
     expect(resolveContextWindow("")).toBe(128000);
   });
 
-  it("非正数（0 / 负数 / NaN）回退缺省", () => {
+  it("non-positive (0 / negative / NaN) falls back to the default", () => {
     expect(resolveContextWindow(0)).toBe(128000);
     expect(resolveContextWindow(-5)).toBe(128000);
     expect(resolveContextWindow(Number.NaN)).toBe(128000);