feat: auto-links screen, keyphrase feed and MCP tools

- SEO › Auto-links (golem15.seo.autolinks, after Pages): list by phrase
  with locale, origin and active filters, the disabled row state, the
  form with its refusals, history through a field-less extension
- toolbar Add focus keyphrases (from_keyphrases) and
  POST /autolinks/from-keyphrases
- GET/POST /autolinks, PUT /autolinks/{id}, DELETE /autolinks and the
  tools seo_list_autolinks, seo_create_autolink, seo_update_autolink,
  seo_delete_autolinks, seo_autolinks_from_keyphrases
- the settings tile description and the permission comment name
  auto-links and the site audit

models/autolink/columns.yaml

@@ -0,0 +1,25 @@
+# Auto-links list columns (UI-SPEC C22). locale and origin show their
+# labels (the controller's ListExtendRecords) and sort by the stored values.
+columns:
+    phrase:
+        label: golem15.seo::lang.autolinks.phrase
+        type: text
+        searchable: true
+        sortable: true
+    url:
+        label: golem15.seo::lang.autolinks.url
+        type: text
+        searchable: true
+        sortable: false
+    locale:
+        label: golem15.seo::lang.autolinks.locale
+        type: text
+        sortable: false
+    origin:
+        label: golem15.seo::lang.autolinks.origin
+        type: text
+        sortable: false
+    updated_at:
+        label: golem15.seo::lang.autolinks.updated
+        type: datetime
+        sortable: true

models/autolink/fields.yaml

@@ -0,0 +1,35 @@
+# Auto-link form (UI-SPEC C22): the phrase and the address it links to,
+# the locale (every locale by default) and the active switch, a note.
+fields:
+    phrase:
+        label: golem15.seo::lang.autolinks.phrase
+        comment: golem15.seo::lang.autolinks.phrase_comment
+        type: text
+        span: left
+        required: true
+
+    url:
+        label: golem15.seo::lang.autolinks.url
+        comment: golem15.seo::lang.autolinks.url_comment
+        type: text
+        span: right
+        required: true
+
+    locale:
+        label: golem15.seo::lang.autolinks.locale
+        type: dropdown
+        span: left
+        emptyOption: golem15.seo::lang.autolinks.locale_all
+        options: localeOptions
+
+    enabled:
+        label: golem15.seo::lang.autolinks.enabled
+        type: switch
+        span: right
+        default: true
+
+    note:
+        label: golem15.seo::lang.autolinks.note
+        type: textarea
+        size: tiny
+        span: full