fix: correct NHL API situation structure for power play detection

The NHL API nests situationDescriptions under situation.homeTeam /
situation.awayTeam, not at the top level. The old flat-structure
lookup always returned an empty list, silently breaking both the
PP indicator on the frontend and the PP bonus in the hype score.
Updated get_power_play_info, the _priority_components PP check,
and all test fixtures to match the real API shape.

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

app/games.py

@@ -179,12 +179,16 @@ def get_start_time(game):
 
 
 def get_power_play_info(game, team_name):
-    if "situation" in game and "situationDescriptions" in game["situation"]:
-        for situation in game["situation"]["situationDescriptions"]:
-            if situation == "PP" and game["awayTeam"]["name"]["default"] == team_name:
-                return f"PP {game['situation']['timeRemaining']}"
-            elif situation == "PP" and game["homeTeam"]["name"]["default"] == team_name:
-                return f"PP {game['situation']['timeRemaining']}"
+    situation = game.get("situation", {})
+    if not situation:
+        return ""
+    time_remaining = situation.get("timeRemaining", "")
+    home_descs = situation.get("homeTeam", {}).get("situationDescriptions", [])
+    away_descs = situation.get("awayTeam", {}).get("situationDescriptions", [])
+    if "PP" in home_descs and game["homeTeam"]["name"]["default"] == team_name:
+        return f"PP {time_remaining}"
+    if "PP" in away_descs and game["awayTeam"]["name"]["default"] == team_name:
+        return f"PP {time_remaining}"
     return ""
 
 
@@ -275,7 +279,9 @@ def _priority_components(game):
     # ── 8. Power play bonus ───────────────────────────────────────────────
     pp_bonus = 0
     situation = game.get("situation", {})
-    if "PP" in situation.get("situationDescriptions", []):
+    home_descs = situation.get("homeTeam", {}).get("situationDescriptions", [])
+    away_descs = situation.get("awayTeam", {}).get("situationDescriptions", [])
+    if "PP" in home_descs or "PP" in away_descs:
         if period >= 4:
             pp_bonus = 200
         elif period == 3 and time_remaining <= 300: