feat: trim oauth env var and update docs

Author: caozhiyuan

README.md

@@ -40,6 +40,8 @@ A reverse-engineered proxy for the GitHub Copilot API that exposes it as an Open
 - **Flexible Authentication**: Authenticate interactively or provide a GitHub token directly, suitable for CI/CD environments.
 - **Support for Different Account Types**: Works with individual, business, and enterprise GitHub Copilot plans.
 - **Opencode OAuth Support**: Use opencode GitHub Copilot authentication by setting `COPILOT_API_OAUTH_APP=opencode` environment variable.
+- **GitHub Enterprise Support**: Connect to GHE.com by setting `COPILOT_API_ENTERPRISE_URL` environment variable (e.g., `company.ghe.com`).
+- **Custom Data Directory**: Change the default data directory (where tokens and config are stored) by setting `COPILOT_API_HOME` environment variable.
 
 ## Demo
 

src/lib/api-config.ts

@@ -3,7 +3,7 @@ import { randomUUID } from "node:crypto"
 import type { State } from "./state"
 
 export const isOpencodeOauthApp = (): boolean => {
-  return process.env.COPILOT_API_OAUTH_APP === "opencode"
+  return process.env.COPILOT_API_OAUTH_APP?.trim() === "opencode"
 }
 
 export const normalizeDomain = (input: string): string => {

src/lib/paths.ts

@@ -2,7 +2,7 @@ import fs from "node:fs/promises"
 import os from "node:os"
 import path from "node:path"
 
-const AUTH_APP = process.env.COPILOT_API_OAUTH_APP || ""
+const AUTH_APP = process.env.COPILOT_API_OAUTH_APP?.trim() || ""
 const ENTERPRISE_PREFIX = process.env.COPILOT_API_ENTERPRISE_URL ? "ent_" : ""
 
 const DEFAULT_DIR = path.join(os.homedir(), ".local", "share", "copilot-api")