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/parks/location_utils.py

@@ -0,0 +1,55 @@
+from decimal import Decimal, ROUND_DOWN, InvalidOperation
+
+
+def normalize_coordinate(value, max_digits, decimal_places):
+    """Normalize coordinate to have exactly 6 decimal places"""
+    try:
+        if value is None:
+            return None
+
+        # Convert to Decimal for precise handling
+        value = Decimal(str(value))
+        # Round to exactly 6 decimal places
+        value = value.quantize(Decimal("0.000001"), rounding=ROUND_DOWN)
+
+        return float(value)
+    except (TypeError, ValueError, InvalidOperation):
+        return None
+
+
+def get_english_name(tags):
+    """Extract English name from OSM tags, falling back to default name"""
+    # Try name:en first
+    if "name:en" in tags:
+        return tags["name:en"]
+    # Then try int_name (international name)
+    if "int_name" in tags:
+        return tags["int_name"]
+    # Fall back to default name
+    return tags.get("name")
+
+
+def normalize_osm_result(result):
+    """Normalize OpenStreetMap result to use English names and normalized coordinates"""
+    # Normalize coordinates
+    result["lat"] = normalize_coordinate(float(result["lat"]), 9, 6)
+    result["lon"] = normalize_coordinate(float(result["lon"]), 10, 6)
+
+    # Get address details
+    address = result.get("address", {})
+
+    # Normalize place names to English where possible
+    if "namedetails" in result:
+        # For main display name
+        result["display_name"] = get_english_name(result["namedetails"])
+
+        # For address components
+        if "city" in address and "city_tags" in result:
+            address["city"] = get_english_name(result["city_tags"])
+        if "state" in address and "state_tags" in result:
+            address["state"] = get_english_name(result["state_tags"])
+        if "country" in address and "country_tags" in result:
+            address["country"] = get_english_name(result["country_tags"])
+
+    result["address"] = address
+    return result