fix: mic permission check, Fn keycode filter, longer clipboard restore, error icon, TCC hint

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

Sources/Sst/AppModel.swift

@@ -25,10 +25,17 @@ final class AppModel: ObservableObject {
             cleaner: PassthroughCleaner(),
             inserter: TextInserter(pasteboard: SystemPasteboard(), paster: CGEventPaster())
         )
-        controller.onStateChange = { [weak self] in self?.state = $0 }
+        controller.onStateChange = { [weak self] in
+            self?.state = $0
+            if $0 == .recording { self?.lastError = nil }
+        }
         controller.onError = { [weak self] in self?.lastError = $0 }
         hotkey.onEvent = { [weak self] event in
             guard let self, self.modelReady else { return }
+            if event == .pressed, AVCaptureDevice.authorizationStatus(for: .audio) != .authorized {
+                self.lastError = "Microfoon-toegang ontbreekt"
+                return
+            }
             Task { await self.controller.handle(event) }
         }
         Task { await start() }
@@ -46,7 +53,9 @@ final class AppModel: ObservableObject {
 
     var iconName: String {
         switch state {
-        case .idle: return modelReady ? "mic" : "mic.slash"
+        case .idle:
+            if lastError != nil { return "exclamationmark.triangle" }
+            return modelReady ? "mic" : "mic.slash"
         case .recording: return "mic.fill"
         case .transcribing, .inserting: return "waveform"
         }
@@ -75,6 +84,13 @@ final class AppModel: ObservableObject {
             _ = AXIsProcessTrustedWithOptions(["AXTrustedCheckOptionPrompt": true] as CFDictionary)
         }
         retryHotkey()
+        transcriber.onProgress = { [weak self] fraction in
+            Task { @MainActor in
+                self?.modelStatus = fraction < 1
+                    ? "Model downloaden… \(Int(fraction * 100))%"
+                    : "Model laden…"
+            }
+        }
         do {
             try await transcriber.load()
             modelReady = true