Store detected regulation in consent records and expose it in SDK

Add a regulation column to cookie_consent_records so each consent
captures which privacy law was in effect. Thread the value from the
handler's geoloc resolution through the service into the DB insert.

On the SDK side, add a Regulation union type to BannerConfig and expose
it via a getter on CookieBannerClient and in the probo-ready event
detail so themed-banner consumers can adapt their UI per regulation.

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

pkg/coredata/cookie_consent_record.go

@@ -40,6 +40,7 @@ type (
 		ConsentData           json.RawMessage     `db:"consent_data"`
 		Action                CookieConsentAction `db:"action"`
 		SdkVersion            string              `db:"sdk_version"`
+		Regulation            string              `db:"regulation"`
 		CreatedAt             time.Time           `db:"created_at"`
 	}
 
@@ -90,6 +91,7 @@ SELECT
 	consent_data,
 	action,
 	sdk_version,
+	regulation,
 	created_at
 FROM
 	cookie_consent_records
@@ -174,6 +176,7 @@ INSERT INTO cookie_consent_records (
 	consent_data,
 	action,
 	sdk_version,
+	regulation,
 	created_at
 ) VALUES (
 	@id,
@@ -187,6 +190,7 @@ INSERT INTO cookie_consent_records (
 	@consent_data,
 	@action,
 	@sdk_version,
+	@regulation,
 	@created_at
 )
 `
@@ -203,6 +207,7 @@ INSERT INTO cookie_consent_records (
 		"consent_data":             r.ConsentData,
 		"action":                   r.Action,
 		"sdk_version":              r.SdkVersion,
+		"regulation":               r.Regulation,
 		"created_at":               r.CreatedAt,
 	}
 
@@ -232,6 +237,7 @@ SELECT
 	consent_data,
 	action,
 	sdk_version,
+	regulation,
 	created_at
 FROM
 	cookie_consent_records
@@ -283,6 +289,7 @@ SELECT
 	consent_data,
 	action,
 	sdk_version,
+	regulation,
 	created_at
 FROM
 	cookie_consent_records