Add banner ID to probo_consent cookie

Include a `bid` field in the consent cookie so it explicitly
identifies which cookie banner it belongs to, making validation
direct instead of relying on the visitor ID as an implicit
discriminator. Existing cookies without `bid` self-heal on the
next load by falling through to the API fetch.

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

pkg/coredata/cookie_consent_record.go

@@ -39,6 +39,7 @@ type (
 		UserAgent             *string             `db:"user_agent"`
 		ConsentData           json.RawMessage     `db:"consent_data"`
 		Action                CookieConsentAction `db:"action"`
+		SdkVersion            string              `db:"sdk_version"`
 		CreatedAt             time.Time           `db:"created_at"`
 	}
 
@@ -77,6 +78,7 @@ SELECT
 	user_agent,
 	consent_data,
 	action,
+	sdk_version,
 	created_at
 FROM
 	cookie_consent_records
@@ -160,6 +162,7 @@ INSERT INTO cookie_consent_records (
 	user_agent,
 	consent_data,
 	action,
+	sdk_version,
 	created_at
 ) VALUES (
 	@id,
@@ -172,6 +175,7 @@ INSERT INTO cookie_consent_records (
 	@user_agent,
 	@consent_data,
 	@action,
+	@sdk_version,
 	@created_at
 )
 `
@@ -187,6 +191,7 @@ INSERT INTO cookie_consent_records (
 		"user_agent":               r.UserAgent,
 		"consent_data":             r.ConsentData,
 		"action":                   r.Action,
+		"sdk_version":              r.SdkVersion,
 		"created_at":               r.CreatedAt,
 	}
 
@@ -216,6 +221,7 @@ SELECT
 	user_agent,
 	consent_data,
 	action,
+	sdk_version,
 	created_at
 FROM
 	cookie_consent_records