fix(pkce): tolerate redirectUri slash; tweak zh labels

Author: linull24

app/src/lib/i18n/locales/zh-CN.ts

@@ -47,7 +47,7 @@ export const zhCN = {
     weekendDesc: '默认隐藏周六日，如有周末课程或需展示可开启。',
     weekendOn: '显示周末',
     weekendOff: '隐藏周末',
-    languageLabel: '界面语言',
+    languageLabel: '语言',
     languageDesc: '切换 UI 语言，立刻生效。',
     languageOptions: {
       auto: '自动（跟随系统/插件）',
@@ -926,7 +926,7 @@ export const zhCN = {
       currentTerm: '当前学期：{term}',
       storageTitle: '当前设置快照',
       storageDescription: '以下是当前浏览器存储的偏好设置，供参考或调试。',
-      storageLanguage: '界面语言：{locale}',
+      storageLanguage: '语言：{locale}',
       storageTheme: '主题：{theme}',
       storagePagination: '分页：{mode}，每页 {size} 条，邻近 {neighbors} 页',
       storageSelectionMode: '选课模式：{mode}',
@@ -1186,7 +1186,7 @@ export const zhCN = {
     progress: '步骤 {current}/{total}',
     termLabel: '学期：{term}',
     language: {
-      body: '请选择界面语言。',
+      body: '请选择语言。',
       hint: '选择“自动”会跟随系统语言。你也可以在设置中随时修改。',
       options: {
         auto: '自动',

app/src/lib/policies/github/oauthPkce.ts

@@ -31,6 +31,18 @@ function getOauthProxyUrl() {
 	}
 }
 
+function normalizeRedirectUri(value: string) {
+	try {
+		const url = new URL(value);
+		url.hash = '';
+		url.search = '';
+		const pathname = url.pathname.replace(/\/+$/, '');
+		return `${url.origin}${pathname}`;
+	} catch {
+		return String(value || '').replace(/\/+$/, '');
+	}
+}
+
 export function getGithubPkceAvailability(): GithubPkceAvailability {
 	if (!browser) return { supported: false, reason: 'unsupportedRuntime' };
 	const clientId = publicEnv.PUBLIC_GITHUB_CLIENT_ID;
@@ -147,7 +159,7 @@ export async function completeGithubPkceCallback(url: URL): Promise<GithubPkceCa
 
 	const availability = getGithubPkceAvailability();
 	if (!availability.supported) return { ok: false, errorKey: 'errors.githubPkceUnsupported' };
-	if (availability.redirectUri !== session.redirectUri) {
+	if (normalizeRedirectUri(availability.redirectUri) !== normalizeRedirectUri(session.redirectUri)) {
 		return { ok: false, errorKey: 'errors.githubStateValidation' };
 	}