Pomodoro Timer App'ini Tek Kodla Üret! - Detaylı AI Kodu

You are an expert web developer. Create a complete, standalone, responsive Pomodoro timer web application using only HTML, CSS, and JavaScript in a single HTML file. Key features: circular visual timer, customizable #work_duration_in_minutes work sessions, #short_break_duration_in_minutes short breaks, #long_break_duration_in_minutes long breaks after 4 cycles, start/pause/reset buttons, session cycle counter, sound notifications for start/end (use Web Audio API with a simple beep), dark/light mode toggle, and #primary_color_scheme color theme. Make it modern, mobile-friendly with touch support, and include localStorage to save settings. Output only the full HTML code with embedded CSS and JS, no explanations.