Clear stale cookie-banner SDK initiator URLs

A pre-fix bug in the cookie-banner SDK walked its own bundle frame
when computing a tracker's initiator, so cookies and storage written
by third parties, malware, or browser extensions were attributed to
cookie-banner.iife.js. The report upsert keeps the existing value on
re-detection (initiator_url = COALESCE(new, old)), so rows whose
corrected initiator is NULL would keep the stale bundle URL forever.

Null initiator_url and initiator_domain on detected_trackers rows that
point at the @probo/cookie-banner bundle. Genuine third-party rows
repopulate the correct initiator on the next detection.

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

pkg/coredata/migrations/20260610T135811Z.sql

@@ -0,0 +1,30 @@
+-- Copyright (c) 2026 Probo Inc <hello@probo.com>.
+--
+-- Permission to use, copy, modify, and/or distribute this software for any
+-- purpose with or without fee is hereby granted, provided that the above
+-- copyright notice and this permission notice appear in all copies.
+--
+-- THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+-- REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+-- AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+-- INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+-- LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+-- OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+-- PERFORMANCE OF THIS SOFTWARE.
+
+-- Clear stale tracker initiator attribution that wrongly pointed at the
+-- @probo/cookie-banner SDK bundle. A pre-fix SDK bug walked its own bundle
+-- frame when computing the initiator, so cookies/storage written by third
+-- parties (or by malware / browser extensions) were attributed to
+-- cookie-banner.iife.js. The SDK now excludes its own bundle, but the report
+-- upsert keeps the existing value on re-detection
+-- (initiator_url = COALESCE(new, old)), so rows whose corrected initiator is
+-- NULL would otherwise keep the stale value forever. NULL them here; genuine
+-- third-party rows repopulate with the correct initiator on next detection.
+UPDATE detected_trackers
+SET initiator_url    = NULL,
+    initiator_domain = NULL,
+    updated_at       = now()
+WHERE initiator_url LIKE '%@probo/cookie-banner%'
+   OR initiator_url LIKE '%cookie-banner.iife.js'
+   OR initiator_url LIKE '%cookie-banner.mjs';