[Word, Excel, PowerPoint] Event-based activation walkthrough

[AlexJerabek]

This article describes the new event-based activation feature for WXP. It provides a walkthrough on the currently supported onDocumentOpened event in Word.

[Copilot]

Pull Request Overview

This PR adds a walkthrough for implementing event-based activation in Word, Excel, and PowerPoint add-ins, with a focus on the onDocumentOpened event in Word.

• Updated the table of contents (toc.yml) to include a link to the new walkthrough.
• Added a new documentation file (WXP-event-based-activation.md) containing manifest configuration instructions and JavaScript event handler implementations.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
docs/toc.yml	Added a new TOC entry for implementing event-based activation in non-Outlook add-ins.
docs/develop/WXP-event-based-activation.md	Introduces detailed steps and sample code for event-based activation across Word, Excel, and PowerPoint add-ins.

Comments suppressed due to low confidence (1)

docs/develop/WXP-event-based-activation.md:182

• The header text is inconsistent with the primary header text ('Highly Confidential'). Consider updating it to maintain consistency.

          firstPageHeader.insertParagraph("High Confidential - The data must be secret or in some way highly critical", "Start");

[learn-build-service-prod]

Learn Build status updates of commit e56eab6:

💡 Validation status: suggestions

File	Status	Preview URL	Details
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docs/toc.yml	✅Succeeded	View

docs/develop/WXP-event-based-activation.md

• Line 0, Column 0: [Suggestion: filename-invalid-character - See documentation] Only lowercase letters, numbers, and hyphens are allowed in filenames.
• Line 0, Column 0: [Suggestion: filename-incomplete - See documentation] The filename contains an incomplete word, misspelled word, acronym, or abbreviation that is disallowed.

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[learn-build-service-prod]

Learn Build status updates of commit eb6d9f6:

💡 Validation status: suggestions

File	Status	Preview URL	Details
docs/develop/WXP-event-based-activation.md	💡Suggestion	View	Details
docs/toc.yml	✅Succeeded	View

docs/develop/WXP-event-based-activation.md

• Line 0, Column 0: [Suggestion: filename-invalid-character - See documentation] Only lowercase letters, numbers, and hyphens are allowed in filenames.
• Line 0, Column 0: [Suggestion: filename-incomplete - See documentation] The filename contains an incomplete word, misspelled word, acronym, or abbreviation that is disallowed.

For more details, please refer to the build report.

Note: Your PR may contain errors or warnings or suggestions unrelated to the files you changed. This happens when external dependencies like GitHub alias, Microsoft alias, cross repo links are updated. Please use these instructions to resolve them.

[learn-build-service-prod]

Learn Build status updates of commit e9887a8:

💡 Validation status: suggestions

File	Status	Preview URL	Details
docs/develop/WXP-event-based-activation.md	💡Suggestion	View	Details
docs/toc.yml	✅Succeeded	View

docs/develop/WXP-event-based-activation.md

• Line 0, Column 0: [Suggestion: filename-invalid-character - See documentation] Only lowercase letters, numbers, and hyphens are allowed in filenames.
• Line 0, Column 0: [Suggestion: filename-incomplete - See documentation] The filename contains an incomplete word, misspelled word, acronym, or abbreviation that is disallowed.

For more details, please refer to the build report.

Note: Your PR may contain errors or warnings or suggestions unrelated to the files you changed. This happens when external dependencies like GitHub alias, Microsoft alias, cross repo links are updated. Please use these instructions to resolve them.