- change mode from "Work" to "Focus" in server messages
- modify pomodoro configuration to use "Focus" instead of "Work"
- adjust default settings to reflect new terminology
- ensure all references to work duration are updated to focus duration
- update variable names in HTML and JavaScript for clarity
🤖
- add a function to check if Pomodoro settings are valid
- log a warning for invalid client configurations
- log an info message for valid client configurations
- implement Stringer interface for PomodoroConfig model
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