Initial commit: HealthCarePregnant project documentation and platform

Co-Authored-By: Claude <noreply@anthropic.com>

pcm-platform/family-app/src/auth/session.ts

@@ -0,0 +1,27 @@
+import type { AuthUser } from '../api/types';
+
+const KEY = 'pcm.family.session';
+
+export interface Session {
+  token: string;
+  user: AuthUser;
+  /** 绑定的被照护孕妇档案 ID（家属受授权查看） */
+  boundPatientId: string | null;
+}
+
+export function loadSession(): Session | null {
+  try {
+    const raw = localStorage.getItem(KEY);
+    return raw ? (JSON.parse(raw) as Session) : null;
+  } catch {
+    return null;
+  }
+}
+
+export function saveSession(session: Session): void {
+  localStorage.setItem(KEY, JSON.stringify(session));
+}
+
+export function clearSession(): void {
+  localStorage.removeItem(KEY);
+}