Fixes: 1) Resolved redundant lines and formatting inconsistencies across multiple files; 2) Corrected Collection typing imports and Optional replacements with union types (e.g., `str | None`);
Extra: Improved formatting and readability by consolidating single-line code sections and simplifying expressions.
Fixes: 1) Add `# type: ignore` comments for ForeignKey fields to resolve type-checking warnings in models.
Extra: 1) Refactor admin field formatting for better readability; 2) Add `# noinspection PyProtectedMember` annotation in `rebuild_slugs` management command; 3) Clean up spacing and alignment in various files.
Fixes: 1) Correct inconsistent function calls with improved attribute formatting; 2) Fix invalid key usage (`uuid` vs. `pk`) in slug rebuilding logic to prevent uniqueness errors; 3) Ensure correct `query` usage in `process_query` function calls.
Extra: Reformat code for readability by updating indentation, and breaking long function signatures and expressions into multiple lines.
Fixes: 1) Update slug population logic in management commands.
Extra: Refactor renderer class formatting, query processing, and formatting for readability across multiple files.
