Better account-based wait status

include/Database.h

@@ -46,6 +46,8 @@ public:
     void setTaskAccount(const std::string& name, const std::optional<std::string>& account);
     void setTaskStatus(const std::string& name, const std::string& status);
     void setTaskNotes(const std::string& name, const std::string& notes);
+    void setTaskWaitOverride(const std::string& name, bool value);
+    void clearWaitOverrides(const std::string& account);  // every task of the account follows its wait again
 
 private:
     using Param = std::optional<std::string>;