CPS: Dashboard-level scope and panel-level custom scope badge

[florent-leborgne]

Summary

Adds CPS documentation to the dashboard pages:

Dashboard-level CPS scope (using.md):

• New "Cross-project search scope" section explaining how to store a CPS scope with a dashboard via the settings flyout or save modal
• When stored, the dashboard restores its saved CPS scope on load

Panel-level custom CPS scope badge (using.md, manage-panels.md):

• Explains that panels using SET project_routing in ES|QL or Maps layers with project routing display a "Custom CPS scope" badge
• Clicking the badge shows the scope and lets you edit the panel
• Panels with custom scope ignore global/dashboard-level scope changes

Dashboard creation (create-dashboard.md):

• Adds the "Store CPS scope with dashboard" option to the settings list

Closes elastic/docs-content-internal#690
Closes elastic/docs-content-internal#691

Test plan

• Verify pages build correctly at explore-analyze/dashboards/using, explore-analyze/dashboards/create-dashboard, and explore-analyze/visualize/manage-panels
• Confirm applies_to tags render properly (serverless preview / stack unavailable)
• Check all cross-links to CPS pages resolve correctly
• Verify UI labels match Kibana codebase ("Store CPS scope with dashboard", "Custom CPS scope")

Generative AI disclosure

1. Did you use a generative AI (GenAI) tool to assist in creating this contribution?

• Yes
• No

2. If you answered "Yes" to the previous question, please specify the tool(s) and model(s) used (e.g., Google Gemini, OpenAI ChatGPT-4, etc.).

Tool(s) and model(s) used: Claude (Cursor)

Made with Cursor

[github-actions]

Vale Linting Results

Summary: 1 suggestion found

💡 Suggestions (1)

File	Line	Rule	Message
explore-analyze/dashboards/using.md	268	Elastic.WordChoice	Consider using 'deactivate, deselect, hide, turn off' instead of 'disable', unless the term is in the UI.

---

The Vale linter checks documentation changes against the Elastic Docs style guide.

To use Vale locally or report issues, refer to Elastic style guide for Vale.