fix(justfile): escape Jinja2 variables to prevent premature evaluation

djinit/templates/shared/justfile.j2

@@ -12,7 +12,7 @@ dev:
 
 # Run development server with custom host and port
 dev-server HOST="0.0.0.0" PORT="8000":
-    uv run python manage.py runserver {{HOST}}:{{PORT}}
+    uv run python manage.py runserver {{ '{{' }}HOST{{ '}}' }}:{{ '{{' }}PORT{{ '}}' }}
 
 # Create migrations for all apps
 makemigrations:
@@ -20,7 +20,7 @@ makemigrations:
 
 # Create migrations for specific app
 makemigrations-app APP:
-    uv run python manage.py makemigrations {{APP}}
+    uv run python manage.py makemigrations {{ '{{' }}APP{{ '}}' }}
 
 # Run all migrations
 migrate:
@@ -112,7 +112,7 @@ server:
 
 # Start production server with gunicorn workers
 server-prod WORKERS="4":
-    uv run gunicorn {{ project_name }}.wsgi:application --bind 0.0.0.0:8000 --workers {{WORKERS}}
+    uv run gunicorn {{ project_name }}.wsgi:application --bind 0.0.0.0:8000 --workers {{ '{{' }}WORKERS{{ '}}' }}
 
 # Start production server with gunicorn and reload on file changes
 server-watch:
@@ -143,12 +143,12 @@ setup-complete:
 
 # Install a new package
 install PACKAGE:
-    uv add {{PACKAGE}}
+    uv add {{ '{{' }}PACKAGE{{ '}}' }}
 
 # Install a dev package
 install-dev PACKAGE:
-    uv add --dev {{PACKAGE}}
+    uv add --dev {{ '{{' }}PACKAGE{{ '}}' }}
 
 # Remove a package
 remove PACKAGE:
-    uv remove {{PACKAGE}}
+    uv remove {{ '{{' }}PACKAGE{{ '}}' }}