Feat/prompt hub v2

[fabianrbz]

Description

Based on #4667
Add prompt hub with Run in Kai button + markdown support.
TODO: We need to migrate the rest of the prompts

Preview Links

Checklist

• Tested how-to docs. If not, note why here.
• All pages contain metadata.
• Any new docs link to existing docs.
• All autogenerated instructions render correctly (API, decK, Konnect, Kong Manager).
• Style guide (capitalized gateway entities, placeholder URLs) implemented correctly.
• Every page has a description entry in frontmatter.
• Add new pages to the product documentation index (if applicable).

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[Copilot]

Pull request overview

Adds a new “Prompt Hub” section to the Kong Developer site, including generated prompt overview pages sourced from YAML, plus UI filtering and a “Run in KAi” action from code blocks.

Changes:

• Introduces a prompts generator that builds /prompts/:slug/ pages from app/_prompts/*.y{a,}ml and exposes them via site.data.prompts.
• Adds the /prompts/ hub page UI (cards + product filter) and prompt overview content rendering (including markdown support).
• Extends codeblock rendering to support a “Run in KAi” link and adjusts hub filtering to include product filtering.

Reviewed changes

Copilot reviewed 23 out of 23 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
jekyll-dev.yml	Adds a dev skip flag for prompt generation.
app/prompts.html	New Prompt Hub landing page with filters, search, and cards.
app/_prompts/security.yaml	Adds a Security prompt category and prompts.
app/_prompts/debugging.yaml	Adds a Debugging prompt category and prompts.
app/_plugins/generators/prompts/prompt.rb	Defines the Prompt model loaded from YAML.
app/_plugins/generators/prompts/pages/overview.rb	Adds generated overview page type for prompts.
app/_plugins/generators/prompts/pages/base.rb	Base page data/URL plumbing for generated prompt pages.
app/_plugins/generators/prompts/generator.rb	Discovers prompt YAML files and generates pages/data entries.
app/_plugins/generators/prompts.rb	Registers the prompts generator and initializes site.data.prompts.
app/_plugins/generators/data/title/prompt.rb	Adds title handling for prompt pages.
app/_plugins/generators/data/title/base.rb	Routes /prompts/ URLs to the new Prompt title generator.
app/_plugins/generators/data/search_tags/prompt.rb	Adds search tag generator class for prompt content type.
app/_plugins/generators/data/search_tags/base.rb	Registers prompt as a recognized content type for search tags.
app/_plugins/converters/syntax_highlight.rb	Adds generation of “Run in KAi” links for eligible code blocks.
app/_layouts/prompts/overview.html	Adds layout for prompt overview pages.
app/_includes/syntax_highlighting.html	Updates codeblock header rendering to include “Run in KAi” UI.
app/_includes/prompts/overview.md	Adds prompt overview markdown include rendering prompts as runnable code blocks.
app/_includes/product_icon.html	Adds a reusable product icon include for prompt cards/filters.
app/_includes/checkbox.html	Adds optional icon rendering for checkbox rows.
app/_includes/cards/prompt.html	Adds prompt card UI for the hub page (products + description).
app/_data/schemas/frontmatter/base.json	Allows content_type: prompt in frontmatter schema.
app/_assets/stylesheets/index.css	Adjusts code wrapping behavior for ask-kai codeblocks.
app/_assets/entrypoints/hub.js	Adds “product” filter support to the existing hub filtering logic.

Comments suppressed due to low confidence (1)

app/_includes/syntax_highlighting.html:40

• codeblock.copy is still computed and show_inline_actions is set based on it, but the copy control ({{ copy }}) is no longer rendered anywhere (header or inline actions), so the “copy code” button disappears; render copy again when codeblock.copy is true (in the header and/or inline actions).

    {% assign show_inline_actions = false %}
    {% if codeblock.render_header == false and codeblock.copy %}{% assign show_inline_actions = true %}{% endif %}
    {% if codeblock.render_header == false and codeblock.collapsible %}{% assign show_inline_actions = true %}{% endif %}
    <div class="flex w-full relative bg-code-block rounded-b-lg border border-primary/5 overflow-auto p-3 {% if codeblock.render_header %}border-t-0{% else %}rounded-t-lg{% endif %} {% if show_inline_actions %}pr-11{% endif%}" data-code-snippet>
        <div class="code-block h-full w-full">{{codeblock.snippet}}</div>
        {% if show_inline_actions %}
        <div class="flex absolute right-3 top-[10px] items-center gap-2">
            {% if codeblock.collapsible %}