RC: Cost Report API

[cmilesb]

Need to clear the openapi.json file before merging.

[github-actions]

DOC-5767

[github-actions]

Staging links:
https://redis.io/docs/staging/DOC-5767/operate/rc/api/examples/generate-cost-report
https://redis.io/docs/staging/DOC-5767/operate/rc/api/examples/generate-cost-report/
https://redis.io/docs/staging/DOC-5767/operate/rc/billing-and-payments/cost-report
https://redis.io/docs/staging/DOC-5767/operate/rc/billing-and-payments/cost-report/
https://redis.io/docs/staging/DOC-5767/operate/rc/changelog/november-2025/

[dwdougherty]

LGTM.

[mich-elle-luna]

thank you!

[yharesh]

Missing some information related to FOCUS, for example, the list of fields FOCUS is providing (even 1 sentence and then add the link to the focus library fields (https://focus.finops.org/focus-columns/).
I will send you some additional information, highlighting key details related to this matter.

[yharesh]

1. in the 1st example in the Generate cost report section, can you
   Please change the date range in this example to
   startDate 2025-01-01
   endDate 2025-01-31
   We will provide you with more information from the code (e.g, certain restrictions, permissions etc.) so you will be able to add it to the documents (for example the cost report date range cant be more than 40 days) we will send you soon.

2. in the Format line **The default format should be CSV and not json please correct** 3. We are going live with it on December 7th, so maybe you want to change the change log document to match.