phase3: add normalized domain schema, admin, services, and multistage docker build

apps/teams/admin.py

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+from django.contrib import admin
+
+from .models import Team
+
+
+@admin.register(Team)
+class TeamAdmin(admin.ModelAdmin):
+    list_display = ("name", "short_name", "country", "is_national_team")
+    list_filter = ("is_national_team", "country")
+    search_fields = ("name", "short_name", "slug")

apps/teams/migrations/0001_initial.py

@@ -0,0 +1,35 @@
+# Generated by Django 5.2.12 on 2026-03-10 09:33
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ('players', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Team',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=200)),
+                ('short_name', models.CharField(blank=True, max_length=80)),
+                ('slug', models.SlugField(max_length=220, unique=True)),
+                ('founded_year', models.PositiveSmallIntegerField(blank=True, null=True)),
+                ('is_national_team', models.BooleanField(default=False)),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('updated_at', models.DateTimeField(auto_now=True)),
+                ('country', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='teams', to='players.nationality')),
+            ],
+            options={
+                'ordering': ['name'],
+                'indexes': [models.Index(fields=['name'], name='teams_team_name_43e047_idx'), models.Index(fields=['slug'], name='teams_team_slug_1ce39f_idx'), models.Index(fields=['country'], name='teams_team_country_f5cb06_idx'), models.Index(fields=['is_national_team'], name='teams_team_is_nati_04af60_idx')],
+                'constraints': [models.UniqueConstraint(fields=('name', 'country'), name='uq_team_name_country')],
+            },
+        ),
+    ]

apps/teams/models.py

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+from django.db import models
+
+
+class Team(models.Model):
+    name = models.CharField(max_length=200)
+    short_name = models.CharField(max_length=80, blank=True)
+    slug = models.SlugField(max_length=220, unique=True)
+    country = models.ForeignKey(
+        "players.Nationality",
+        on_delete=models.SET_NULL,
+        blank=True,
+        null=True,
+        related_name="teams",
+    )
+    founded_year = models.PositiveSmallIntegerField(blank=True, null=True)
+    is_national_team = models.BooleanField(default=False)
+    created_at = models.DateTimeField(auto_now_add=True)
+    updated_at = models.DateTimeField(auto_now=True)
+
+    class Meta:
+        ordering = ["name"]
+        constraints = [
+            models.UniqueConstraint(fields=["name", "country"], name="uq_team_name_country")
+        ]
+        indexes = [
+            models.Index(fields=["name"]),
+            models.Index(fields=["slug"]),
+            models.Index(fields=["country"]),
+            models.Index(fields=["is_national_team"]),
+        ]
+
+    def __str__(self) -> str:
+        return self.name