feat: add setting that allows removing books from recent list when read (#2043)

src/RecentBooksStore.h

@@ -37,6 +37,11 @@ class RecentBooksStore {
   void updateBook(const std::string& path, const std::string& title, const std::string& author,
                   const std::string& coverBmpPath);
 
+  // Remove the entry whose path matches (used when a book is finished/read).
+  // Returns true if an entry was found and removed (no-op + false otherwise).
+  // Persistence is best-effort: a failed save is logged, not reflected in the return.
+  bool removeByPath(const std::string& path);
+
   // Repoint an entry's path (and coverBmpPath, if it lived under the old cache dir) after the
   // backing file and cache dir were moved on disk. No-op if no entry matches oldPath.
   // Persists on success. Keeps the entry's list position (does not reorder).