migrated all pawprint work

artery/veins/slack/core/client.py

@@ -0,0 +1,30 @@
+"""
+Slack connection client using slack_sdk.
+"""
+
+from slack_sdk import WebClient
+from slack_sdk.errors import SlackApiError
+
+
+class SlackClientError(Exception):
+    pass
+
+
+def get_client(token: str) -> WebClient:
+    """Create a Slack WebClient with the given token."""
+    return WebClient(token=token)
+
+
+def test_auth(client: WebClient) -> dict:
+    """Test authentication and return user/bot info."""
+    try:
+        response = client.auth_test()
+        return {
+            "ok": response["ok"],
+            "user": response.get("user"),
+            "user_id": response.get("user_id"),
+            "team": response.get("team"),
+            "team_id": response.get("team_id"),
+        }
+    except SlackApiError as e:
+        raise SlackClientError(f"Auth failed: {e.response['error']}")