Frontend Routing and State

Route	Component	Relevant state
/	Biblioteca	query, category, filters, order, mode
/livro/:id	Leitura	file, page/position, and return path
/historico	Historico	progress and last access
/continuar	redirect	compatibility with /historico
/estatisticas	Estatisticas	reading aggregates
/series/:id	Serie	work/series and sequence

State sources

• server: catalog, tree, profiles, reading state, preferences, and operations;
• URL: categoria, q, secao, ordem, modo, subpastas, and filters;
• localStorage: favorites/recent items and per-profile progress fallback;
• sessionStorage: scroll by route/query;
• Context: theme;
• IndexedDB/Cache Storage: offline inventory and bytes.

readingSync.js merges by timestamp and avoids losing the most recent position. Mutations invalidate related queries.