Add Django site, Docker packaging, and beta/prod Gitea deploys.

Unignore site/ (was blocked by mkdocs /site rule), add compose/Docker/uv tooling, and split deploys so push to main goes to beta while prod stays manual.

site/accounts/models.py

@@ -0,0 +1,19 @@
+from django.conf import settings
+from django.db import models
+
+from core.models import TimeStampedModel
+
+
+class RealtorProfile(TimeStampedModel):
+    user = models.OneToOneField(
+        settings.AUTH_USER_MODEL,
+        on_delete=models.CASCADE,
+        related_name="realtor_profile",
+    )
+    display_name = models.CharField(max_length=120, blank=True)
+    phone = models.CharField(max_length=32, blank=True)
+    title = models.CharField(max_length=120, blank=True)
+    bio = models.TextField(blank=True)
+
+    def __str__(self) -> str:
+        return self.display_name or self.user.get_username()