[CLOUDGA-28778] Billing estimate cli

[bhupendray-yb]

Summary:

• [CLOUDGA-28778] Added billing estimate cli under a feature flag.

Testing:

Help

> mb; ./ybm billing estimate --help
Get billing estimate for one or more accounts within a specified date range. NOTE: Results may not reflect real-time usage due to backend aggregation pipelines. Expect delays of up to 48 hours under normal conditions, or up to several days in rare cases of pipeline failures.

Usage:
  ybm billing estimate [flags]

Flags:
      --account-names strings   [OPTIONAL] Comma-separated list of account names to fetch billing information for.
      --end-date string         [OPTIONAL] End date(format yyyy-MM-dd) for billing estimate (inclusive). Defaults to current date if not provided.
  -h, --help                    help for estimate
      --start-date string       [OPTIONAL] Start date(format yyyy-MM-dd) for billing estimate (inclusive). Defaults to 1st day of current month if not provided.

Usage

> export YBM_FF_BILLING=true

> make build; ./ybm billing estimate
Start Date   End Date     Total Amount
2025-08-01   2025-08-11   $120.45

Account Name     Amount
superman1        $70.15
iam-batman       $50.30
ybcloud-876412   $0.00
dev-bhupendra    $0.00

[arishta-yb]

Can you please attach a screenshot of a sample output.