Add support for pr:declined webhook event

scripts/bitbucket_onboarding.py

@@ -79,6 +79,7 @@
     "pr:reviewer:needs_work",
     "pr:reviewer:updated",
     "pr:merged",
+    "pr:declined",
     "pr:deleted",
     "repo:refs_changed",
 )

tests/fixtures/bitbucket_pr_declined.json

@@ -0,0 +1,42 @@
+{
+  "eventKey": "pr:declined",
+  "date": "2026-04-28T10:00:00+0000",
+  "actor": {
+    "name": "alice",
+    "displayName": "Alice Example",
+    "slug": "alice"
+  },
+  "pullRequest": {
+    "id": 42,
+    "title": "ABC-123: Add payment retry",
+    "description": "Fixes ABC-123 and PROJ-9",
+    "state": "DECLINED",
+    "closed": true,
+    "closedDate": 1777370400000,
+    "fromRef": {
+      "id": "refs/heads/feature/ABC-123-retries",
+      "displayId": "feature/ABC-123-retries",
+      "latestCommit": "abc1234567890abc1234567890abc1234567890a",
+      "repository": {
+        "slug": "payments-api",
+        "project": {"key": "ACME"}
+      }
+    },
+    "toRef": {
+      "id": "refs/heads/master",
+      "displayId": "master",
+      "latestCommit": "0000000000000000000000000000000000000000",
+      "repository": {
+        "slug": "payments-api",
+        "project": {"key": "ACME"}
+      }
+    },
+    "author": {
+      "user": {
+        "name": "alice",
+        "displayName": "Alice Example",
+        "slug": "alice"
+      }
+    }
+  }
+}

tests/test_parsers_bitbucket.py

@@ -57,6 +57,37 @@ def test_revert_pr_title_marks_is_revert(self) -> None:
         assert result.is_revert is True
 
 
+class TestExtractPrDeclined:
+    def test_pr_declined_fixture_returns_draft_with_lowercased_join_keys(self) -> None:
+        # Given
+        body = _load("bitbucket_pr_declined.json")
+
+        # When
+        result = extract_event(
+            body,
+            x_event_key="pr:declined",
+            x_request_uuid="req-decl",
+            x_hook_uuid=None,
+        )
+
+        # Then — declined-PRs share the merged payload shape; the parser
+        # must persist them with full join keys so they show up in
+        # downstream rollups (e.g. noergler outcome='declined' joins).
+        assert isinstance(result, BitbucketEventDraft)
+        assert result.delivery_id == "req-decl"
+        assert result.event_type == "pr:declined"
+        assert result.repo_full_name == "acme/payments-api"
+        assert result.pr_id == 42
+        assert result.commit_sha == "abc1234567890abc1234567890abc1234567890a"
+        assert result.branch_name == "feature/abc-123-retries"
+        assert result.author == "alice"
+        assert result.is_revert is False
+        assert result.change_type == "feature"
+        assert "ABC-123" in result.jira_keys
+        assert "PROJ-9" in result.jira_keys
+        assert result.payload is body
+
+
 class TestExtractRefsChanged:
     def test_branch_push_extracts_to_hash_and_branch(self) -> None:
         # Given