[bot] Update Learning Hub with Copilot v1.0.68 features (July 2026)

[github-actions]

What's new

Based on a review of GitHub Copilot CLI v1.0.66–v1.0.68 releases (June 30 – July 1, 2026), the Learning Hub pages were already up to date through v1.0.67. This PR adds documentation for features introduced in v1.0.68 (released 2026-07-01) that were not yet covered.

Changes found

GitHub Copilot CLI v1.0.68 (2026-07-01):

• New sessions screen — in-session /sessions command to browse/switch all sessions without restarting the CLI
• Plan budget details in /usage and the /statusline footer when sessionLimits are configured
• Slash-command alias completion inline — typing a partial alias now surfaces inline completions
• Kimi K2.7 model added to the CLI model picker for code generation tasks

(v1.0.66 and v1.0.67 features were already documented in previous page updates.)

Sections updated

copilot-configuration-basics.md

• Added /sessions command (v1.0.68) for in-session sessions browsing, after the existing session picker section
• Updated /usage description to mention plan budget display when sessionLimits are active (v1.0.68)
• Updated /statusline description to mention the new plan budget indicator (v1.0.68)
• Added callout about slash-command alias completion inline (v1.0.68)

building-custom-agents.md

• Added Kimi K2.7 (v1.0.68+) to the model recommendation table alongside GPT-4.1 for code generation use cases
• Added a tip encouraging users to open the CLI model picker to see all available models

Source references

• GitHub Copilot CLI changelog: https://github.com/github/copilot-cli/blob/main/changelog.md
• v1.0.68 release: https://github.com/github/copilot-cli/releases/tag/v1.0.68

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