coredata: split SCRIPT/IFRAME into tracker_resources table

Move resource tracking (scripts, iframes) out of the pattern-based
tracker_patterns/detected_trackers machinery into its own
tracker_resources table keyed by (banner, type, origin, path).

- Add migration that creates the tracker_resource_type enum, the
  tracker_resources table with a unique index, drops existing
  SCRIPT/IFRAME rows (not yet in production), and recreates the
  tracker_type enum without those values.
- Add TrackerResource coredata model with full CRUD, Upsert (bumps
  last_detected_at on conflict), list/count/move operations, filter,
  and order field support.
- Register TrackerResourceEntityType (91) in the entity type registry.
- Drop TrackerTypeScript/TrackerTypeIframe from TrackerType enum.
- Update handler to use TrackerResourceType for resource detection.
- Temporarily stub out resource ingestion in ReportDetectedTrackers
  pending the service-layer wiring in the next commit.
- Drop SCRIPT/IFRAME from the GraphQL TrackerType enum.

Signed-off-by: Émile Ré <emile@getprobo.com>

pkg/server/api/console/v1/graphql/cookie_banner.graphql

@@ -52,14 +52,6 @@ enum TrackerType
         @goEnum(
             value: "go.probo.inc/probo/pkg/coredata.TrackerTypeIndexedDB"
         )
-    SCRIPT
-        @goEnum(
-            value: "go.probo.inc/probo/pkg/coredata.TrackerTypeScript"
-        )
-    IFRAME
-        @goEnum(
-            value: "go.probo.inc/probo/pkg/coredata.TrackerTypeIframe"
-        )
 }
 
 enum CookieBannerOrderField