feat: configurable trip reminders, admin full access, and enhanced audit logging

- Add configurable trip reminder days (1, 3, 9 or custom up to 30) settable by trip owner
- Grant administrators full access to edit, archive, delete, view and list all trips
- Show trip owner email in audit logs and docker logs when admin edits/deletes another user's trip
- Show target user email in audit logs when admin edits or deletes a user account
- Use email instead of username in all notifications (Discord/Slack/email) to avoid ambiguity
- Grey out notification event toggles when no SMTP/webhook is configured
- Grey out trip reminder selector when notifications are disabled
- Skip local admin account creation when OIDC_ONLY=true with OIDC configured
- Conditional scheduler logging: show disabled reason or active reminder count
- Log per-owner reminder creation/update in docker logs
- Demote 401/403 HTTP errors to DEBUG log level to reduce noise
- Hide edit/archive/delete buttons for non-owner invited users on trip cards
- Fix literal "0" rendering on trip cards from SQLite numeric is_owner field
- Add missing translation keys across all 14 language files

Made-with: Cursor

client/src/store/authStore.ts

@@ -26,6 +26,7 @@ interface AuthState {
   serverTimezone: string
   /** Server policy: all users must enable MFA */
   appRequireMfa: boolean
+  tripRemindersEnabled: boolean
 
   login: (email: string, password: string) => Promise<LoginResult>
   completeMfaLogin: (mfaToken: string, code: string) => Promise<AuthResponse>
@@ -42,6 +43,7 @@ interface AuthState {
   setHasMapsKey: (val: boolean) => void
   setServerTimezone: (tz: string) => void
   setAppRequireMfa: (val: boolean) => void
+  setTripRemindersEnabled: (val: boolean) => void
   demoLogin: () => Promise<AuthResponse>
 }
 
@@ -55,6 +57,7 @@ export const useAuthStore = create<AuthState>((set, get) => ({
   hasMapsKey: false,
   serverTimezone: Intl.DateTimeFormat().resolvedOptions().timeZone,
   appRequireMfa: false,
+  tripRemindersEnabled: false,
 
   login: async (email: string, password: string) => {
     set({ isLoading: true, error: null })
@@ -224,6 +227,7 @@ export const useAuthStore = create<AuthState>((set, get) => ({
   setHasMapsKey: (val: boolean) => set({ hasMapsKey: val }),
   setServerTimezone: (tz: string) => set({ serverTimezone: tz }),
   setAppRequireMfa: (val: boolean) => set({ appRequireMfa: val }),
+  setTripRemindersEnabled: (val: boolean) => set({ tripRemindersEnabled: val }),
 
   demoLogin: async () => {
     set({ isLoading: true, error: null })