feat: complete monorepo structure with frontend and shared resources

- Add complete backend/ directory with full Django application
- Add frontend/ directory with Vite + TypeScript setup ready for Next.js
- Add comprehensive shared/ directory with:
  - Complete documentation and memory-bank archives
  - Media files and avatars (letters, park/ride images)
  - Deployment scripts and automation tools
  - Shared types and utilities
- Add architecture/ directory with migration guides
- Configure pnpm workspace for monorepo development
- Update .gitignore to exclude .django_tailwind_cli/ build artifacts
- Preserve all historical documentation in shared/docs/memory-bank/
- Set up proper structure for full-stack development with shared resources

backend/apps/rides/models/company.py

@@ -0,0 +1,77 @@
+import pghistory
+from django.contrib.postgres.fields import ArrayField
+from django.db import models
+from django.urls import reverse
+from django.utils.text import slugify
+
+from apps.core.history import HistoricalSlug
+from apps.core.models import TrackedModel
+
+
+@pghistory.track()
+class Company(TrackedModel):
+    class CompanyRole(models.TextChoices):
+        MANUFACTURER = "MANUFACTURER", "Ride Manufacturer"
+        DESIGNER = "DESIGNER", "Ride Designer"
+        OPERATOR = "OPERATOR", "Park Operator"
+        PROPERTY_OWNER = "PROPERTY_OWNER", "Property Owner"
+
+    name = models.CharField(max_length=255)
+    slug = models.SlugField(max_length=255, unique=True)
+    roles = ArrayField(
+        models.CharField(max_length=20, choices=CompanyRole.choices),
+        default=list,
+        blank=True,
+    )
+    description = models.TextField(blank=True)
+    website = models.URLField(blank=True)
+
+    # General company info
+    founded_date = models.DateField(null=True, blank=True)
+
+    # Manufacturer-specific fields
+    rides_count = models.IntegerField(default=0)
+    coasters_count = models.IntegerField(default=0)
+
+    def __str__(self):
+        return self.name
+
+    def save(self, *args, **kwargs):
+        if not self.slug:
+            self.slug = slugify(self.name)
+        super().save(*args, **kwargs)
+
+    def get_absolute_url(self):
+        # This will need to be updated to handle different roles
+        return reverse("companies:detail", kwargs={"slug": self.slug})
+        return "#"
+
+    @classmethod
+    def get_by_slug(cls, slug):
+        """Get company by current or historical slug"""
+        try:
+            return cls.objects.get(slug=slug), False
+        except cls.DoesNotExist:
+            # Check pghistory first
+            history_model = cls.get_history_model()
+            history_entry = (
+                history_model.objects.filter(slug=slug)
+                .order_by("-pgh_created_at")
+                .first()
+            )
+            if history_entry:
+                return cls.objects.get(id=history_entry.pgh_obj_id), True
+
+            # Check manual slug history as fallback
+            try:
+                historical = HistoricalSlug.objects.get(
+                    content_type__model="company", slug=slug
+                )
+                return cls.objects.get(pk=historical.object_id), True
+            except (HistoricalSlug.DoesNotExist, cls.DoesNotExist):
+                raise cls.DoesNotExist("No company found with this slug")
+
+    class Meta:
+        app_label = "rides"
+        ordering = ["name"]
+        verbose_name_plural = "Companies"