fix(slack): Use correct feature flag for explore identity prompt

The identity-linking prompt for explore links was gated on
discover-basic, but the actual unfurl handler checks
data-browsing-widget-unfurl. This caused unlinked users to be
prompted to link their identity for unfurls that would silently
produce nothing. Map each link type to its own feature flag.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: DominikB2014

src/sentry/integrations/slack/webhooks/event.py

@@ -195,13 +195,16 @@ def _get_unfurlable_links(
                 if link_type is None or args is None:
                     continue
 
+                feature_flag = {
+                    LinkType.DISCOVER: "organizations:discover-basic",
+                    LinkType.EXPLORE: "organizations:data-browsing-widget-unfurl",
+                }.get(link_type)
+
                 if (
                     organization
-                    and link_type in (LinkType.DISCOVER, LinkType.EXPLORE)
+                    and feature_flag
                     and not slack_request.has_identity
-                    and features.has(
-                        "organizations:discover-basic", organization, actor=request.user
-                    )
+                    and features.has(feature_flag, organization, actor=request.user)
                 ):
                     try:
                         analytics.record(

tests/sentry/integrations/slack/webhooks/events/test_explore_link_shared.py

@@ -97,7 +97,7 @@ def share_explore_links_ephemeral_sdk(self, mock_match_link, mock_):
     def test_share_explore_links_unlinked_user(self) -> None:
         with assume_test_silo_mode(SiloMode.CONTROL):
             self.create_identity_provider(type="slack", external_id="TXXXXXXX1")
-        with self.feature("organizations:discover-basic"):
+        with self.feature("organizations:data-browsing-widget-unfurl"):
             data = self.share_explore_links_ephemeral_sdk()
 
         blocks = orjson.loads(data["blocks"])