[WIP] Migrate Adaptor Hooks documentation from Wiki

[Copilot]

Fix Adaptor Hooks documentation 404 issue

The wiki page https://wiki.eclipse.org/Adaptor_Hooks is being shut down, and while the content was migrated to docs/_articles/Adaptor_Hooks.md, it's showing a 404 when accessed via the expected URL.

Analysis

• Verify that Adaptor_Hooks.md exists in docs/_articles/ with proper content
• Check Jekyll configuration in _config.yml for articles collection

Plan

• Add explicit permalink to Adaptor_Hooks.md to match the wiki URL structure
• Verify the permalink works with Jekyll's URL generation
• Test that the documentation is accessible at the expected URL
• Check if any other references need updating

Original prompt

Migrate https://wiki.eclipse.org/Adaptor_Hooks to the docs

The WIki is going to shut down and the page https://wiki.eclipse.org/Adaptor_Hooks claims this was migrated to the docs but it is still missing (shows 404)

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[laeubi]

It seems it was just moved here: https://github.com/eclipse-equinox/equinox/blob/master/docs/_articles/Adaptor_Hooks.md