List all applications linked to companies within the authenticated organisation's subtree. Supports pagination and filtering by company_id.

Related resources can be included via ?include=bank_accounts:

• To fetch without related resources, omit the include parameter.
• To include related bank accounts, pass ?include=bank_accounts.

🔒 This endpoint requires an OAC (Organisation Access Credentials — ⚠️ Beta) access token with the applications:read scope.