Add v2 notifications routes

[iamacook]

Summary

This adds SiWe-guard routes for upserting push notification subscriptions/getting preferences, as well as deletion routes for Safe/device subscriptions.

POST /v2/register/notifications (guarded)

The cloudMessagingToken is the Firebase Cloud Messaging token for the device being registered. A UUID can be provided for this device, or one will be returned.

Subscriptions are provided per chain-specific Safe, alongside the preferences of which notification types should be subscribed-to.

Note: the given preferences overwrites existing ones if upserting a subscription.

enum NotificationType {
  CONFIRMATION_REQUEST = 'CONFIRMATION_REQUEST',
  DELETED_MULTISIG_TRANSACTION = 'DELETED_MULTISIG_TRANSACTION',
  EXECUTED_MULTISIG_TRANSACTION = 'EXECUTED_MULTISIG_TRANSACTION',
  INCOMING_ETHER = 'INCOMING_ETHER',
  INCOMING_TOKEN = 'INCOMING_TOKEN',
  MESSAGE_CONFIRMATION_REQUEST = 'MESSAGE_CONFIRMATION_REQUEST',
  MODULE_TRANSACTION = 'MODULE_TRANSACTION',
}

type Request = {
  cloudMessagingToken: string;
  safes: Array<{
    chainId: string;
    address: `0x${string}`;
    notificationTypes: Array<NotificationType>;
  }>
  deviceType: 'ANDROID' | 'IOS' | 'WEB';
  deviceUuid?: `${string}-${string}-${string}-${string}-${string}`;
}

type Response = {
  deviceUuid: `${string}-${string}-${string}-${string}-${string}`;
}

GET /v2/chains/:chainId/notifications/devices/:deviceUuid/safes/:safeAddress (guarded)

This returns an array of NotificationTypes for the respective Safe.

type Response = Array<NotificationType>

DELETE /v2/chains/:chainId/notifications/devices/:deviceUuid/safes/:safeAddress

This deletes the device-specific subscription for the given Safe.

DELETE /v2/chains/:chainId/notifications/devices/:deviceUuid

This deleted the device, and therefore all subscriptions associated with it.

Changes

• Create above routes in a new NotificationsModuleV2 with associated service and controller, tweaking the respective repository/datasource in accordance.
• Add relative validation for entities:
  • Create UpsertSubscriptionsDto, located on the route level and infer the type from it.
  • Create UuidSchema.
• Remove Uuid entity in place of crypto.UUID.
• Add appropriate tests.

The base branch was changed.