fix: enforce license-backed user capacity

web/src/api/license.ts

@@ -33,13 +33,6 @@ export interface LicenseStatus {
   message?: string
 }
 
-/** Generate a short device fingerprint from browser/OS info. */
-function deviceFingerprint(): string {
-  const nav = window.navigator
-  const parts = [nav.hardwareConcurrency, nav.language, screen.width, screen.height]
-  return btoa(parts.join('|')).slice(0, 32).replace(/[+/=]/g, '')
-}
-
 // ── API methods ──
 
 export const licenseAPI = {
@@ -48,8 +41,6 @@ export const licenseAPI = {
     api
       .post<LicenseActivation>('/license/activate', {
         key: key.trim(),
-        device_id: deviceFingerprint(),
-        device_name: navigator.platform || 'Web Client',
       })
       .then((r) => r.data),
 

web/src/pages/LicensePageSections.tsx

@@ -18,7 +18,7 @@ export function LicenseHeader() {
       </div>
       <div>
         <h1 className="font-display text-3xl font-bold text-ink-600">许可证</h1>
-        <p className="text-sm text-ink-50">绑定授权密钥以解锁全部功能</p>
+        <p className="text-sm text-ink-50">绑定授权密钥以提升多用户容量</p>
       </div>
     </div>
   )
@@ -55,7 +55,7 @@ export function LicenseBindPanel({
         </button>
       </form>
       <p className="text-xs text-sand-500">
-        输入从授权服务器获取的许可证密钥，激活后即可使用所有高级功能。
+        输入从授权服务器获取的许可证密钥，激活后按授权额度开放更多平台用户。
       </p>
     </div>
   )
@@ -126,7 +126,7 @@ export function LicenseStatusPanel({
 
       {active && activation && (
         <div className="grid grid-cols-2 gap-3">
-          <StatusBadge label="密钥" value={activation.key ?? activation.key_id} mono />
+          <StatusBadge label="密钥" value={activation.key || activation.key_id} mono />
           <StatusBadge
             label="套餐"
             value={activation.plan ?? 'standard'}

web/src/pages/settingsGroupGeneral.ts

@@ -122,7 +122,7 @@ export const licenseSettingsGroup: SettingGroup = {
       key: 'license.hmac_secret',
       label: 'HMAC 签名密钥',
       type: 'text',
-      hint: '必须与 License Server 的 LICENSE_HMAC_SECRET 保持一致；留空则跳过响应签名校验。',
+      hint: '必须与 License Server 的 LICENSE_HMAC_SECRET 保持一致；用于校验多用户授权响应签名。',
     },
   ],
 }