Fixes: 1) Remove redundant breaks and unnecessary div wrappings; 2) Simplify filters component by eliminating unnecessary card wrapper;
Extra: Refactor and clean up admin dashboard templates for decluttered structure and improved code consistency;
Fixes: None;
Extra: 1) Remove redundant comments from `_kpis.html`; 2) Exclude unused `_income_overview.html` include from `index.html`; 3) Comment out GA/Yandex/Ads integration placeholder in `_filters.html`.
Fixes: 1) Replace failed daily stats with empty lists instead of crashing; 2) Fix inconsistent variable scoping and cleanup;
Extra: 1) Refactor daily stats logic to handle exceptions gracefully; 2) Improve readability by grouping related metrics; 3) Add type annotations for new context variables.
