docs(legal): remove billing page to redirect to the HubSpot KBA URL (#10488)

Removed the billing md document and updated the links to the HubSpot KBA
-> https://help.zitadel.com/pricing-and-billing-of-zitadel-services

Co-authored-by: Maximilian <mpa@zitadel.com>

docs/docs/legal/policies/acceptable-use-policy.md

@@ -31,7 +31,6 @@ You agree that we may delete any data on our systems or networks, if CAOS believ
 
 You agree to adhere to the following fair use limits:
 
-- [Actions minutes](../service-description/billing.md#action-minutes): A monthly limit of 1'000 Action minutes per instance
 - Usage limits that were agreed by both parties in advance for the duration of the term
 
 ## Violations of this policy

docs/docs/legal/service-description/billing.md

@@ -1,82 +0,0 @@
----
-title: Pricing and billing of ZITADEL services
-sidebar_label: Billing
-custom_edit_url: null
---- 
-
-Last updated on November 15, 2023
-
-This annex of the [Framework Agreement](../terms-of-service) describes the pricing and billing of our Services.
-
-## Pricing
-
-You can find pricing information on our [website](https://zitadel.com/pricing).
-
-### Enterprise pricing
-
-Customer and ZITADEL may agree on an individual per-customer pricing via an Enterprise Agreement.
-
-## Billing Metrics
-
-### Monthly amount
-
-Monthly amount means the available usage per measure for one billing period.
-The amount is reset to zero with the start of a new billing period.
-
-### Daily active user (DAU)
-
-Daily Active Users (DAU) are counted as users who authenticate or refresh their token during the given day.
-To calculate the monthly amount we take the sum of DAU over a given month.
-Included are users that either login with local accounts or users that login with an external identity provider.
-Service users that authenticate or access the management API are counted against Daily Active Users.
-
-### Active external identity providers
-
-To calculate the monthly amount we take the sum of activated external identity providers over all instances on each day and calculate the average over a given month, rounded up to the next integer.
-Excluded are configured identity providers that are not activated.
-
-### Action minutes
-
-Action minutes mean execution time, rounded up to 1 second, of custom code execution via a customer defined Action.
-
-### Management API requests
-
-Management API requests means any request to the following API endpoints requiring a valid authorization header.
-Excluded are requests with a server error, public endpoints, health endpoints, and endpoints to load UI assets.
-
-Management endpoints:
-
-- /zitadel.*
-- /v2alpha*
-- /v2beta*
-- /v2*
-- /admin*
-- /management*
-- /system*
-
-### Admin users
-
-Admin users means users within the customer portal that can manage a customer's account including billing, instances, analytics and additional services.
-
-### Audit trail history (events)
-
-Audit trail history (events) means past events that can be retrieved via API or GUI.
-Typically all changes to any object in within ZITADEL are saved as events and can be used for audit trail and analytics purposes.
-The number of past events that can be retrieved may be limited by your subscription.
-
-### Access and runtime logs (logs)
-
-Access and runtime logs (logs) means logs that are available about your instance.
-Logs may contain information about success or failure reasons for API requests and Action executions, output from Actions, rate limit violations, and system health.
-You might be able to retrieve logs only for a limited period of time based on your subscription.
-
-### Custom domains
-
-Custom domains mean domains that you can configure to reach your ZITADEL instance.
-By default ZITADEL creates a custom domain for you when creating new instances.
-Besides the included amount each additional custom domain is charged.
-
-## Payment cycle
-
-If not agreed otherwise, the payment frequency is monthly.
-Your invoice will contain both pre-paid items for the current billing period and usage-based charges from the last billing period.

docs/docs/legal/service-description/cloud-service-description.md

@@ -17,7 +17,7 @@ This annex of the [Framework Agreement](../terms-of-service) describes the servi
 You will benefit from the same software as the open-source project, but we take care of the hosting, maintenance, backup, scaling, and operational security. The cloud service is managed and maintained by the team that also develops the software.
 
 When creating a new instance, you are able to choose a [data location](#data-location).
-We follow a single-provider strategy by minimizing the involved [sub-processors](../subprocessors.md) to increase security, compliance, and performance of our services. [Billing](./billing.md) is based on effective usage of our services.
+We follow a single-provider strategy by minimizing the involved [sub-processors](../subprocessors.md) to increase security, compliance, and performance of our services. [Billing](https://help.zitadel.com/pricing-and-billing-of-zitadel-services) is based on effective usage of our services.
 
 ### Enterprise license / self-hosted
 

docs/sidebars.js

@@ -1180,6 +1180,11 @@ module.exports = {
               type: "autogenerated",
               dirName: "legal/service-description",
             },
+            {
+              type: "link",
+              label: "Billing",
+              href: "https://help.zitadel.com/pricing-and-billing-of-zitadel-services"
+            }
           ],
         },
         {