Prevent macOS from terminating the app in the background Logs from a disappearing-on-wake session showed AppKit flipping _kLSApplicationWouldBeTerminatedByTALKey to 1: macOS's Automatic Termination optimization was killing ntfyme while the Mac slept because a windowless LSUIElement is by default considered idle and disposable, and no crash report is generated for these terminations. Opt out both at runtime and in the Info.plist: - ProcessInfo.processInfo.disableAutomaticTermination(_:) at the top of App.init() counters the AT flag that the log confirmed was flipping. Also call disableSuddenTermination() so the OS can't reclaim the process without a proper terminate cycle. - INFOPLIST_KEY_NSSupportsAutomaticTermination = NO and INFOPLIST_KEY_NSSupportsSuddenTermination = NO cover the brief window between launch and the runtime call, and stop the OS's termination heuristics from ever considering ntfyme a candidate. Combined with the existing ?since= replay, ntfyme should now survive sleep/wake and quietly backfill any messages posted during sleep on reconnect.

- Replay missed messages, connection indicator, unified window, icon fix - Streams remember the most recent message id per subscription and reconnect with ?since= so a Mac that slept overnight backfills anything posted while it was offline. The since-id is derived from the already-persisted messages array on launch (no second persisted dict). Replayed messages skip the UNUserNotification deliver path so you don't get re-notified for things you've already seen. - New ConnectionState (connecting/connected/disconnected) reported per stream, aggregated in the popup header as a small dot — green = all online, orange = partial, red = everything offline. Hover tooltip reports the count. - Settings and History merged into one Window scene with a TabView (General / Subscriptions / History / About). Opening it via the popup promotes the app from .accessory to .regular so the Dock icon main menu appear; closing the window flips back to .accessory and drops out of the Dock. - Subscription rows in Settings now respond to double-click anywhere in the row to open the editor — implemented via an NSClickGestureRecognizer (with delaysPrimaryMouseButtonEvents off) so single-click selection on the same row still works for the bottom toolbar's edit / unsubscribe / test buttons. - AppIconResolver tries the bundled .icns, NSWorkspace.icon(forFile:), and NSImage(named:) in order, and the result is assigned to NSApplication.shared.applicationIconImage in App.init() before the notification authorization request. Fresh installs now cache the correct icon in usernoted at first auth; existing installs with a blank notification icon can use the new Settings → General → Open notification settings button to deep-link to System Settings → Notifications and toggle the permission off/on to force a re-cache. - Sound preview path switched from NSSound.play() to AVAudioPlayer reading /System/Library/Sounds/*.aiff (NSSound triggered AudioAnalytics' mach-lookup precondition inside the sandbox).