Nostr Web Client

📦 Signet commit

Added admin event logging to track key lock/unlock, app suspend/resume, etc. Improved pool tracking to prevent stale SSE connections from not restarting during long sleep/wake cycles. Replaced relays widget with system status widget. Added option kill switch to send daemon commands via NIP-04 and NIP-17 DMs from user-defined admin npub. Updated documentation.

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