fix: bitbucket connector: update return type annotation in connector.py and clean up params initialization

Author: danielkravets

backend/onyx/connectors/bitbucket/connector.py

@@ -104,7 +104,7 @@ def _build_params(
         fields: str = PR_LIST_RESPONSE_FIELDS,
         start: SecondsSinceUnixEpoch | None = None,
         end: SecondsSinceUnixEpoch | None = None,
-    ) -> dict[str, Any] | None:
+    ) -> dict[str, Any]:
         """Build Bitbucket fetch params honoring pruning and optional time window.
 
         Respects start/end if BOTH are provided.
@@ -113,7 +113,6 @@ def _build_params(
         - prune_days  > 0: include OPEN (with optional start/end);
           for MERGED/DECLINED require updated_on >= max(threshold, start) and <= end (if provided).
         """
-        base: dict[str, Any] = {"fields": fields, "pagelen": self.batch_size}
 
         # Compute common time bounds
         start_iso = (
@@ -132,7 +131,7 @@ def _tc(lower: str | None, upper: str | None) -> str | None:
                 return f'(updated_on >= "{lower}" AND updated_on <= "{upper}")'
             return None
 
-        params = base
+        params: dict[str, Any] = {"fields": fields, "pagelen": self.batch_size}
         if self._prune_days == -1:
             # All states, optional global window
             time_clause = _tc(start_iso, end_iso)

backend/tests/daily/connectors/bitbucket/test_bitbucket_basic.py

@@ -19,7 +19,6 @@ def bitbucket_connector() -> BitbucketConnector:
     - BITBUCKET_WORKSPACE: workspace id
     - BITBUCKET_REPOSITORIES: comma-separated slugs
     - BITBUCKET_PROJECTS: optional comma-separated project keys
-    - BITBUCKET_PRUNE_DAYS: optional int for prune_closed_prs_after_days
     """
     workspace = os.environ.get("BITBUCKET_WORKSPACE", "dokv")
     repositories = os.environ.get("BITBUCKET_REPOSITORIES")