v5.0.0

• feat!: WhatsApp Cloud API v25.0 parity (reactions, BSUID, media, Block API) (#49) (eca14d5), closes #49

BREAKING CHANGES

• • CloudAPIVersion bumped from v24 to v25.

• recipient_type is now required on message request types.
• CloudAPIRequest and every CloudAPISend*MessageRequest require at
  least one of to / recipient.
• CloudAPISend*MessageRequest are now type aliases — no declaration
  merging, and no interface … extends of these types.
• CloudAPIMessageRequestWithContext removed; use
  CloudAPIMessageRequestBase (which now carries the optional context
  field for every message type).
• Media id / link is exactly-one via CloudAPIMediaSource (also on
  flow / buttons header media params).
• WebhookUnknownMessage (type: 'unknown') replaced by
  WebhookUnsupportedMessage (type: 'unsupported', with
  unsupported.type).
• WebhookMessageBase.from_user_id and WebhookContact.user_id are now
  required.
• Response wa_id is now optional (BSUID sends omit it).
• WebhookSystemMessage.system.new_wa_id removed (not in v25 docs).
• Minimum Node.js version is now 24.