feat: add Django web app, CloudKit sync, dashboard, and game_datetime_utc export

Adds the full Django application layer on top of sportstime_parser:
- core: Sport, Team, Stadium, Game models with aliases and league structure
- scraper: orchestration engine, adapter, job management, Celery tasks
- cloudkit: CloudKit sync client, sync state tracking, sync jobs
- dashboard: staff dashboard for monitoring scrapers, sync, review queue
- notifications: email reports for scrape/sync results
- Docker setup for deployment (Dockerfile, docker-compose, entrypoint)

Game exports now use game_datetime_utc (ISO 8601 UTC) instead of
venue-local date+time strings, matching the canonical format used
by the iOS app.

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

core/resources.py

@@ -0,0 +1,162 @@
+"""Import/Export resources for core models."""
+from import_export import resources, fields
+from import_export.widgets import ForeignKeyWidget
+
+from .models import Sport, Conference, Division, Team, Stadium, Game, TeamAlias, StadiumAlias
+
+
+class SportResource(resources.ModelResource):
+    class Meta:
+        model = Sport
+        import_id_fields = ['code']
+        fields = [
+            'code', 'name', 'short_name', 'season_type',
+            'season_start_month', 'season_end_month',
+            'expected_game_count', 'is_active',
+        ]
+        export_order = fields
+
+
+class ConferenceResource(resources.ModelResource):
+    sport = fields.Field(
+        column_name='sport',
+        attribute='sport',
+        widget=ForeignKeyWidget(Sport, 'code')
+    )
+
+    class Meta:
+        model = Conference
+        import_id_fields = ['sport', 'name']
+        fields = ['sport', 'canonical_id', 'name', 'short_name', 'order']
+        export_order = fields
+
+
+class DivisionResource(resources.ModelResource):
+    conference = fields.Field(
+        column_name='conference',
+        attribute='conference',
+        widget=ForeignKeyWidget(Conference, 'name')
+    )
+    sport = fields.Field(attribute='conference__sport__code', readonly=True)
+
+    class Meta:
+        model = Division
+        import_id_fields = ['conference', 'name']
+        fields = ['sport', 'conference', 'canonical_id', 'name', 'short_name', 'order']
+        export_order = fields
+
+
+class TeamResource(resources.ModelResource):
+    sport = fields.Field(
+        column_name='sport',
+        attribute='sport',
+        widget=ForeignKeyWidget(Sport, 'code')
+    )
+    division = fields.Field(
+        column_name='division',
+        attribute='division',
+        widget=ForeignKeyWidget(Division, 'name')
+    )
+    home_stadium = fields.Field(
+        column_name='home_stadium',
+        attribute='home_stadium',
+        widget=ForeignKeyWidget(Stadium, 'name')
+    )
+
+    class Meta:
+        model = Team
+        import_id_fields = ['id']
+        fields = [
+            'id', 'sport', 'division', 'city', 'name', 'full_name',
+            'abbreviation', 'primary_color', 'secondary_color',
+            'logo_url', 'home_stadium', 'is_active',
+        ]
+        export_order = fields
+
+
+class StadiumResource(resources.ModelResource):
+    sport = fields.Field(
+        column_name='sport',
+        attribute='sport',
+        widget=ForeignKeyWidget(Sport, 'code')
+    )
+
+    class Meta:
+        model = Stadium
+        import_id_fields = ['id']
+        fields = [
+            'id', 'sport', 'name', 'city', 'state', 'country',
+            'latitude', 'longitude', 'timezone', 'capacity',
+            'surface', 'roof_type', 'opened_year', 'image_url',
+        ]
+        export_order = fields
+
+
+class GameResource(resources.ModelResource):
+    sport = fields.Field(
+        column_name='sport',
+        attribute='sport',
+        widget=ForeignKeyWidget(Sport, 'code')
+    )
+    home_team = fields.Field(
+        column_name='home_team',
+        attribute='home_team',
+        widget=ForeignKeyWidget(Team, 'abbreviation')
+    )
+    away_team = fields.Field(
+        column_name='away_team',
+        attribute='away_team',
+        widget=ForeignKeyWidget(Team, 'abbreviation')
+    )
+    stadium = fields.Field(
+        column_name='stadium',
+        attribute='stadium',
+        widget=ForeignKeyWidget(Stadium, 'name')
+    )
+
+    class Meta:
+        model = Game
+        import_id_fields = ['id']
+        fields = [
+            'id', 'sport', 'season', 'home_team', 'away_team',
+            'stadium', 'game_date', 'game_number', 'status',
+            'home_score', 'away_score', 'is_playoff', 'playoff_round',
+            'is_neutral_site', 'source_url',
+        ]
+        export_order = fields
+
+
+class TeamAliasResource(resources.ModelResource):
+    team = fields.Field(
+        column_name='team',
+        attribute='team',
+        widget=ForeignKeyWidget(Team, 'abbreviation')
+    )
+    sport = fields.Field(attribute='team__sport__code', readonly=True)
+
+    class Meta:
+        model = TeamAlias
+        import_id_fields = ['team', 'alias']
+        fields = [
+            'sport', 'team', 'alias', 'alias_type',
+            'valid_from', 'valid_until', 'is_primary', 'source', 'notes',
+        ]
+        export_order = fields
+
+
+class StadiumAliasResource(resources.ModelResource):
+    stadium = fields.Field(
+        column_name='stadium',
+        attribute='stadium',
+        widget=ForeignKeyWidget(Stadium, 'name')
+    )
+    sport = fields.Field(attribute='stadium__sport__code', readonly=True)
+
+    class Meta:
+        model = StadiumAlias
+        import_id_fields = ['stadium', 'alias']
+        fields = [
+            'sport', 'stadium', 'alias', 'alias_type',
+            'valid_from', 'valid_until', 'is_primary', 'source', 'notes',
+        ]
+        export_order = fields