feat: game importance factor in hype scoring

Adds calculate_game_importance() that boosts Priority for high-stakes
regular-season matchups based on season progress (sharp ramp after game
55), playoff bubble proximity (wildcard rank ~17-19 = max relevance),
and divisional/conference rivalry (1.4x/1.2x multipliers). Max bonus
150 pts applied to both LIVE and PRE games; playoff and FINAL games
are unaffected. Extends standings schema with division, conference,
games_played, and wildcard_sequence fields fetched from the NHL API.

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

tests/test_games.py

@@ -1,6 +1,7 @@
 import app.games
 from tests.conftest import make_game
 from app.games import (
+    calculate_game_importance,
     calculate_game_priority,
     convert_game_state,
     format_record,
@@ -413,3 +414,123 @@ class TestGetComebackBonus:
         app.games._score_cache[("Maple Leafs", "Bruins")] = (1, 3)
         game = make_game(home_score=2, away_score=3, period=4)
         assert get_comeback_bonus(game) == 100
+
+
+class TestCalculateGameImportance:
+    def _standings(
+        self,
+        league_seq=10,
+        l10_seq=10,
+        div="ATL",
+        conf="E",
+        gp=65,
+        wc=18,
+    ):
+        return {
+            "league_sequence": league_seq,
+            "league_l10_sequence": l10_seq,
+            "division_abbrev": div,
+            "conference_abbrev": conf,
+            "games_played": gp,
+            "wildcard_sequence": wc,
+        }
+
+    def test_returns_zero_for_playoff_game(self):
+        game = make_game(game_type=3)
+        assert calculate_game_importance(game) == 0
+
+    def test_returns_zero_for_final_game(self):
+        game = make_game(game_state="OFF")
+        assert calculate_game_importance(game) == 0
+
+    def test_near_zero_early_in_season(self, mocker):
+        mocker.patch(
+            "app.games.get_team_standings",
+            return_value=self._standings(gp=10, wc=18),
+        )
+        game = make_game(game_state="FUT")
+        assert calculate_game_importance(game) <= 10
+
+    def test_max_bonus_late_season_bubble_division_game(self, mocker):
+        mocker.patch(
+            "app.games.get_team_standings",
+            return_value=self._standings(gp=82, wc=18, div="ATL", conf="E"),
+        )
+        game = make_game(game_state="FUT")
+        assert calculate_game_importance(game) == 150
+
+    def test_same_division_beats_same_conference(self, mocker):
+        home_st = self._standings(gp=70, wc=18, div="ATL", conf="E")
+        away_st_same_div = self._standings(gp=70, wc=18, div="ATL", conf="E")
+        away_st_diff_div = self._standings(gp=70, wc=18, div="MET", conf="E")
+
+        mocker.patch(
+            "app.games.get_team_standings",
+            side_effect=[home_st, away_st_same_div],
+        )
+        result_div = calculate_game_importance(make_game(game_state="FUT"))
+
+        mocker.patch(
+            "app.games.get_team_standings",
+            side_effect=[home_st, away_st_diff_div],
+        )
+        result_conf = calculate_game_importance(make_game(game_state="FUT"))
+
+        assert result_div > result_conf
+
+    def test_same_conference_beats_different_conference(self, mocker):
+        home_st = self._standings(gp=70, wc=18, div="ATL", conf="E")
+        away_same_conf = self._standings(gp=70, wc=18, div="MET", conf="E")
+        away_diff_conf = self._standings(gp=70, wc=18, div="PAC", conf="W")
+
+        mocker.patch(
+            "app.games.get_team_standings",
+            side_effect=[home_st, away_same_conf],
+        )
+        result_same = calculate_game_importance(make_game(game_state="FUT"))
+
+        mocker.patch(
+            "app.games.get_team_standings",
+            side_effect=[home_st, away_diff_conf],
+        )
+        result_diff = calculate_game_importance(make_game(game_state="FUT"))
+
+        assert result_same > result_diff
+
+    def test_bubble_teams_beat_safely_in_teams(self, mocker):
+        mocker.patch(
+            "app.games.get_team_standings",
+            return_value=self._standings(gp=70, wc=18),
+        )
+        result_bubble = calculate_game_importance(make_game(game_state="FUT"))
+
+        mocker.patch(
+            "app.games.get_team_standings",
+            return_value=self._standings(gp=70, wc=5),
+        )
+        result_safe = calculate_game_importance(make_game(game_state="FUT"))
+
+        assert result_bubble > result_safe
+
+    def test_eliminated_teams_have_lowest_relevance(self, mocker):
+        mocker.patch(
+            "app.games.get_team_standings",
+            return_value=self._standings(gp=70, wc=30),
+        )
+        assert calculate_game_importance(make_game(game_state="FUT")) < 30
+
+    def test_result_is_non_negative_int(self, mocker):
+        mocker.patch(
+            "app.games.get_team_standings",
+            return_value=self._standings(gp=0, wc=32),
+        )
+        result = calculate_game_importance(make_game(game_state="FUT"))
+        assert isinstance(result, int)
+        assert result >= 0
+
+    def test_result_never_exceeds_150(self, mocker):
+        mocker.patch(
+            "app.games.get_team_standings",
+            return_value=self._standings(gp=82, wc=18, div="ATL", conf="E"),
+        )
+        assert calculate_game_importance(make_game(game_state="FUT")) <= 150