[skill-activity] docs: add GHEC and GHES billing dashboard paths to cost management step

[github-actions]

What was improved

Added environment-specific billing dashboard navigation to workshop/26-manage-costs-and-budgets.md. The original step gave instructions only for personal github.com accounts (profile → Settings → Billing). GHEC and GHES learners could not find where to check their AI Credit usage.

The new content adds a sub-section for each deployment target:

• github.com — unchanged personal account path
• GHEC — org Settings → Billing and plans → Plans and usage, plus a note about org-level reporting and admin confirmation
• GHES — directs learners to the GitHub Enterprise billing console and their admin

Learner pain point addressed

Enterprise learners hit a dead end on the first step of the cost-management module: the billing page they were told to open did not match their environment, so they could not complete the AIC usage check or the checkpoint item.

Why it helps workshop flow

The fix aligns with the enterprise-first tie-break rule from the guidelines. It keeps the step self-contained and unblocks GHEC/GHES learners without adding new prerequisites or restructuring the step.

Warning

Firewall blocked 1 domain

The following domain was blocked by the firewall during workflow execution:

• awmgmcpg

To allow these domains, add them to the network.allowed list in your workflow frontmatter:

network:
  allowed:
    - defaults
    - "awmgmcpg"

See Network Configuration for more information.

Generated by 🧩 Workshop Skill Activity Author · 55 AIC · ⌖ 6.1 AIC · ⊞ 5.1K · ◷

• expires on Jul 24, 2026, 3:36 AM UTC