docs(pricing-may-2026): soften absolute 'no AI credits / 0 credits' claims in BYOK + CIE credit sections

- Drop the 'No AI credits are consumed' bullet and the 'credit
  transparency footer shows 0 credits used' sentence from BYOK's
  Credit usage subsection. Replaced with a more general framing that
  says inference is billed through your provider account rather than
  drawing from your Warp AI credits, alongside the existing platform
  credits caveat for Business / Enterprise.
- Same softening on the custom inference endpoint page's Warp AI
  credits subsection \u2014 collapse the three firm bullets into one
  general sentence and keep the platform-credits note.

This avoids the misleadingly absolute '0 credits' claim, which is
inaccurate for Business / Enterprise local runs where platform credits
can still apply.

Co-Authored-By: Oz <oz-agent@warp.dev>

Author: hongyi-chen

src/content/docs/support-and-community/plans-and-billing/bring-your-own-api-key.mdx

@@ -75,11 +75,8 @@ To use your own key, select a specific provider model (for example, Claude Opus
 
 When you select a model with the key icon in your model picker, Warp routes the request through your API key. In that case:
 
-* No AI credits are consumed.
-* The request is billed directly through your provider account.
-* Agent Mode always **prioritizes BYOK** over any available Warp credits.
-
-The credit transparency footer shows “0 credits used”, and the `Billing & Usage` page reflects no deductions from your monthly credit total.
+* Inference is billed directly through your provider account rather than drawing from your Warp AI credits.
+* Agent Mode prioritizes BYOK over any available Warp credits.
 
 :::note
 On Business and Enterprise plans, local agent runs that use BYOK still consume platform credits for Warp's platform infrastructure (run lifecycle, integrations, observability). See [platform credits](/support-and-community/plans-and-billing/platform-credits/) for what's covered.

src/content/docs/support-and-community/plans-and-billing/custom-inference-endpoint.mdx

@@ -58,11 +58,7 @@ The configuration flow mirrors the [Bring your own API key](/support-and-communi
 
 ### Warp AI credits
 
-When you select an endpoint-routed model from the model picker:
-
-* No Warp AI credits are consumed for that request.
-* Inference is billed directly by your endpoint provider, according to their pricing.
-* The credit transparency footer will show "0 credits used" for those requests.
+When you select an endpoint-routed model from the model picker, inference is billed directly by your endpoint provider, according to their pricing, rather than drawing from your Warp AI credits.
 
 :::note
 On Business and Enterprise plans, local agent runs that route through a custom inference endpoint still consume platform credits for Warp's platform infrastructure. See [platform credits](/support-and-community/plans-and-billing/platform-credits/) for the full breakdown.