bugfix: one client only one sse connection

v0.3.3

bugfix: one client only one sse connection

feat: optimize SSE data delivery, add uptime format, refresh interval, Simplified Chinese and color themes

feat: enhance SSE data delivery and add i18n + theme support

• Align SSE ticks to interval boundaries, send first tick immediately
• Add uptime display modes (elapsed / start time) with configurable duration
• Add Simplified Chinese language pack with language switcher on login
• Add 4 color themes (orange, mint, blue, monet, dark)

add 2FA authentication (TOTP), change ORM to goent, update README

• add 2FA authentication (TOTP)
• fix(supervisor): increase detectDaemonize timeout for reliable daemon detection
• fix(supervisor): preserve context validity during process restart cycle
• fix bug: detectDaemonize time is too short
• use Echo instead of Fiber

Add stdout/stderr log switching; fix config save path and split apply/save

• Add stdout/stderr log switching
• fix config save path and split apply/save
• process PID/race issues
• replace restarts with memory display