Default the content type to page so Varbase AI Base applies on every site template

Problem/Motivation

• The content_type input defaults to blog.
• Site templates without a Blog content type, such as Educare and The Rightup, stop when Varbase AI Base applies this recipe with its defaults: field.field.node.blog.field_tags does not exist.
• A recipe cannot skip a missing content type, so the whole Varbase AI Base run fails.

Steps to reproduce

• Install Varbase 11 with the Educare or The Rightup site template.
• Apply Varbase AI Base with its default inputs.
• The run stops with a validation error on field.field.node.blog.field_tags.

Proposed resolution

• Default content_type to page. Varbase Starter, Educare, Horizon Aid and The Rightup all have page with field_tags and field_content.
• Sites tag their main content type (blog, news) by applying the recipe again with --input=varbase_ai_taxonomy_tagging.content_type=..., as the README shows.

Remaining tasks

• ✅ File an issue
• ✅ Addition/Change/Update/Fix (MR)
• ✅ Testing to ensure no regression: applied with page on Educare and The Rightup; automator and "Suggest tags" button created
• ➖ Automated unit/functional testing coverage
• ➖ Developer Documentation support
• ❌ User Guide Documentation support
• ➖ UX/UI designer responsibilities
• ➖ Accessibility and Readability
• ❌ Reviewed by a human
• ❌ Code review by maintainers
• ❌ Full testing and approval
• ❌ Credit contributors
• ❌ Review with the product owner
• ❌ Release

User interface changes

• The recipe form shows page as the default content type.

API changes

• N/A

Data model changes

• N/A

Release notes snippet

• Taxonomy Tagging now defaults to the Basic page content type, so Varbase AI Base applies on every Varbase site template.

AI-Generated: Yes