[META] AI-Powered Configuration Navigator

This is the META issue tracking the AI-Powered Configuration Navigator module.

## Goal

Help users find Drupal configuration pages by asking in plain language, instead of clicking through admin menus. A user types a question like "where do I change the site logo?" and the module points them to the right config page.

## How it works (high level)

Read all of Drupal's routes, filter to the configuration pages (those under admin/config), store them as an index, then match a user's question to the right page using AI, with a keyword search as a fallback. A chat widget in the admin UI is the front end.

## Tasks

These will be broken out into child issues:

- [ ] Build the configuration index (read routes, filter to config pages, extract metadata, store in a table)
- [ ] Build the query endpoint (receive the user's question)
- [ ] Add AI matching (send question + index to an AI provider, return the matched page)
- [ ] Add keyword fallback search (works without an AI key)
- [ ] Build the chat widget UI (help icon + chat panel, Claro/Gin themes, accessibility)
- [ ] Add GitLab CI (phpcs, phpstan, tests on every MR)
- [ ] Tests and documentation

## Status

Module scaffold created and pushed to the 1.0.x branch. Starting on the configuration index next.