Card Lab Game Summary: fix empty selectors via statcast coverage filter

Root cause: game_outcomes contains 2026/recent games with no matching
rows in statcast_event_core (historical data ends at 2025). Game pk
lookups returned 0 rows silently, leaving multiselects empty.

- get_recent_completed_games_for_card_lab: restrict dropdown to games
whose game_pk exists in statcast_event_core (CAST bigint AS STRING
for safe text comparison against game_outcomes.game_pk text column)
- get_game_players_for_card_lab: surface exceptions via _error key in
result dict instead of swallowing silently
- Debug expander: show raw game_pk type, statcast row/pitcher/batter
counts for selected game, and any helper exception text

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

visualization/card_lab_page.py

@@ -335,7 +335,8 @@ def render_card_lab(conn) -> None:
 
         elif card_type == "Game Summary":
             if selected_game_row:
-                st.write(f"**game_pk:** {selected_game_row.get('game_pk')}")
+                raw_gp = selected_game_row.get("game_pk")
+                st.write(f"**game_pk raw value:** {raw_gp!r}  (type: {type(raw_gp).__name__})")
             st.write(f"**Hitters found:** {len(game_players.get('hitters', []))}")
             st.write(f"**Pitchers found:** {len(game_players.get('pitchers', []))}")
             st.write("**First 10 hitters:**", [h['display_name'] for h in game_players.get('hitters', [])[:10]])
@@ -346,6 +347,27 @@ def render_card_lab(conn) -> None:
                 st.write("Selected hitters:", [h['display_name'] for h in game_selected_hitters])
             if game_selected_pitchers:
                 st.write("Selected pitchers:", [p['display_name'] for p in game_selected_pitchers])
+            if selected_game_row and selected_game_row.get("game_pk"):
+                try:
+                    _gp = int(selected_game_row["game_pk"])
+                    _cnt = conn.execute(
+                        text("SELECT COUNT(*) FROM statcast_event_core WHERE game_pk = :gp"),
+                        {"gp": _gp},
+                    ).scalar()
+                    _p_cnt = conn.execute(
+                        text("SELECT COUNT(DISTINCT pitcher) FROM statcast_event_core WHERE game_pk = :gp"),
+                        {"gp": _gp},
+                    ).scalar()
+                    _b_cnt = conn.execute(
+                        text("SELECT COUNT(DISTINCT batter) FROM statcast_event_core WHERE game_pk = :gp"),
+                        {"gp": _gp},
+                    ).scalar()
+                    st.write(f"**statcast rows for game_pk {_gp}:** {_cnt}")
+                    st.write(f"**Distinct pitchers:** {_p_cnt}  |  **Distinct batters:** {_b_cnt}")
+                except Exception as _e:
+                    st.write(f"**Statcast row count error:** {_e}")
+            if game_players.get("_error"):
+                st.write(f"**get_game_players error:** {game_players['_error']}")
 
     fmt = st.radio("Format", ["PNG", "JPG"], horizontal=True, key="cl_fmt")
 

visualization/cards/card_queries.py

@@ -370,10 +370,16 @@ def get_recent_completed_games_for_card_lab(conn, limit: int = 25) -> pd.DataFra
     """Recent completed games from game_outcomes for the Game Summary card type."""
     try:
         sql = text("""
-            SELECT game_pk, away_team, home_team, away_score, home_score, graded_at AS game_date
-            FROM game_outcomes
-            WHERE away_score IS NOT NULL AND home_score IS NOT NULL
-            ORDER BY graded_at DESC
+            SELECT go.game_pk, go.away_team, go.home_team, go.away_score, go.home_score,
+                   go.graded_at AS game_date
+            FROM game_outcomes go
+            WHERE go.away_score IS NOT NULL
+              AND go.home_score IS NOT NULL
+              AND go.game_pk IN (
+                  SELECT DISTINCT CAST(ec.game_pk AS STRING)
+                  FROM statcast_event_core ec
+              )
+            ORDER BY go.graded_at DESC
             LIMIT :limit
         """)
         df = pd.read_sql(sql, conn, params={"limit": limit})
@@ -434,7 +440,7 @@ def get_game_players_for_card_lab(
 
     Each entry: {"display_name": str, "player_id": int|None, "team": str}
     """
-    result: dict[str, list[dict]] = {"pitchers": [], "hitters": []}
+    result: dict[str, list[dict]] = {"pitchers": [], "hitters": [], "_error": None}
     try:
         pitcher_rows = conn.execute(
             text("""
@@ -488,4 +494,5 @@ def get_game_players_for_card_lab(
         )
     except Exception as exc:
         logger.warning("[game_players] failed game_pk=%s: %s", game_pk, exc)
+        result["_error"] = str(exc)
     return result