Fix issues #6, #7, #11, #12, #13: med reminders, push notifications, auth persistence, scheduling conflicts

- Fix TIME object vs string comparison in scheduler preventing adaptive med
  reminders from ever firing (#12, #6)
- Add frequency filtering to midnight schedule creation for every_n_days meds
- Require start_date and interval_days for every_n_days medications
- Add refresh token support (30-day) to API and bot for persistent sessions (#13)
- Add "trusted device" checkbox to frontend login for long-lived sessions (#7)
- Auto-refresh expired tokens in both bot (apiRequest) and frontend (api.ts)
- Restore bot sessions from cache on restart using refresh tokens
- Duration-aware routine scheduling conflict detection (#11)
- Add conflict check when starting routine sessions against medication times
- Add diagnostic logging to notification delivery channels

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

synculous-client/src/components/auth/AuthProvider.tsx

@@ -9,7 +9,7 @@ interface AuthContextType {
   token: string | null;
   isLoading: boolean;
   isAuthenticated: boolean;
-  login: (username: string, password: string) => Promise<void>;
+  login: (username: string, password: string, trustDevice?: boolean) => Promise<void>;
   register: (username: string, password: string) => Promise<void>;
   logout: () => void;
   refreshUser: () => Promise<void>;
@@ -54,8 +54,8 @@ export function AuthProvider({ children }: { children: React.ReactNode }) {
     refreshUser();
   }, [refreshUser]);
 
-  const login = async (username: string, password: string) => {
-    const result = await api.auth.login(username, password);
+  const login = async (username: string, password: string, trustDevice = false) => {
+    const result = await api.auth.login(username, password, trustDevice);
     const storedToken = api.auth.getToken();
     setToken(storedToken);