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/leads/models.py

@@ -0,0 +1,46 @@
+from django.conf import settings
+from django.db import models
+
+from contacts.models import Contact
+from core.models import TimeStampedModel, UUIDPrimaryKeyModel
+
+
+class Lead(UUIDPrimaryKeyModel, TimeStampedModel):
+    class Status(models.TextChoices):
+        NEW = "new", "New"
+        CONTACTED = "contacted", "Contacted"
+        WON = "won", "Won"
+        LOST = "lost", "Lost"
+
+    contact = models.ForeignKey(Contact, on_delete=models.CASCADE, related_name="leads")
+    message = models.TextField(blank=True)
+    status = models.CharField(
+        max_length=16, choices=Status.choices, default=Status.NEW
+    )
+    owner = models.ForeignKey(
+        settings.AUTH_USER_MODEL,
+        null=True,
+        blank=True,
+        on_delete=models.SET_NULL,
+        related_name="leads",
+    )
+
+    class Meta:
+        ordering = ["-created_at"]
+
+    def __str__(self) -> str:
+        return f"Lead {self.contact} ({self.status})"
+
+
+class LeadNote(TimeStampedModel):
+    lead = models.ForeignKey(Lead, on_delete=models.CASCADE, related_name="notes")
+    author = models.ForeignKey(
+        settings.AUTH_USER_MODEL,
+        null=True,
+        blank=True,
+        on_delete=models.SET_NULL,
+    )
+    body = models.TextField()
+
+    class Meta:
+        ordering = ["-created_at"]