style: weitere flutter-analyze Infos beheben

Ungenutzte Imports (dart:typed_data, flutter/services.dart), unnötige
String-Interpolations-Klammern, führender Unterstrich bei lokaler Funktion,
fehlende Blockklammern bei if-Statements und SCREAMING_CASE-Konstanten in
clipboard_image.dart auf lowerCamelCase umbenannt. Rein mechanisch, keine
Verhaltensänderung.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

lib/features/call/voice_channel.dart

@@ -145,7 +145,7 @@ class VoiceChannelView extends ConsumerWidget {
   List<_ParticipantData> _getVoipParticipants(PyramidVoipManager voip) {
     final participants = <_ParticipantData>[];
 
-    double _ar(rtc.RTCVideoRenderer r) {
+    double ar(rtc.RTCVideoRenderer r) {
       final w = r.videoWidth.toDouble();
       final h = r.videoHeight.toDouble();
       return (w > 0 && h > 0) ? w / h : 16.0 / 9.0;
@@ -162,7 +162,7 @@ class VoiceChannelView extends ConsumerWidget {
       hasVideo: hasRemoteVideo,
       isScreenShare: isRemoteScreen,
       avatarColor: _avatarColors[1],
-      aspectRatio: hasRemoteVideo ? _ar(voip.remoteRenderer) : 16.0 / 9.0,
+      aspectRatio: hasRemoteVideo ? ar(voip.remoteRenderer) : 16.0 / 9.0,
     ));
 
     // Local
@@ -176,7 +176,7 @@ class VoiceChannelView extends ConsumerWidget {
       hasVideo: hasLocalVideo,
       isScreenShare: isLocalScreen,
       avatarColor: _avatarColors[0],
-      aspectRatio: hasLocalVideo ? _ar(voip.localRenderer) : 16.0 / 9.0,
+      aspectRatio: hasLocalVideo ? ar(voip.localRenderer) : 16.0 / 9.0,
     ));
 
     return participants;

lib/features/chat/attachment_dialog.dart

@@ -321,7 +321,7 @@ class _FilePreviewState extends State<_FilePreview> {
   }
 
   String _formatSize(int bytes) {
-    if (bytes < 1024) return '${bytes} B';
+    if (bytes < 1024) return '$bytes B';
     if (bytes < 1024 * 1024) return '${(bytes / 1024).toStringAsFixed(1)} KB';
     return '${(bytes / (1024 * 1024)).toStringAsFixed(1)} MB';
   }

lib/features/chat/chat_composer.dart

@@ -1,6 +1,5 @@
 import 'dart:async';
 import 'dart:io';
-import 'dart:typed_data';
 import 'package:file_picker/file_picker.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';

lib/utils/clipboard_image.dart

@@ -7,8 +7,8 @@ import 'package:image/image.dart' as img;
 
 // ── Windows constants ────────────────────────────────────────────────────────
 
-const _CF_DIB = 8;
-const _CF_DIBV4 = 20;
+const _cfDib = 8;
+const _cfDibV4 = 20;
 
 // ── Native function typedefs ─────────────────────────────────────────────────
 
@@ -94,7 +94,7 @@ Uint8List? _readClipboardImage() {
     }
 
     // 2. Try CF_DIBV4 then CF_DIB — convert DIB to PNG via the image package
-    for (final fmt in [_CF_DIBV4, _CF_DIB]) {
+    for (final fmt in [_cfDibV4, _cfDib]) {
       if (isFormatAvailable(fmt) != 0) {
         final dibBytes = _readGlobalBytes(
             getClipboardData(fmt), globalSize, globalLock, globalUnlock);

lib/widgets/create_join_dialog.dart

@@ -1,7 +1,6 @@
 import 'dart:async';
 
 import 'package:flutter/material.dart' hide Visibility;
-import 'package:flutter/services.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:matrix/matrix.dart';
 import 'package:pyramid/core/app_state.dart';
@@ -189,11 +188,13 @@ class _CreateJoinDialogState extends ConsumerState<CreateJoinDialog> {
         });
       }
     } catch (e) {
-      if (mounted) setState(() {
-        _discoverLoading = false;
-        _discoverLoadingMore = false;
-        _discoverError = e.toString().split('\n').first;
-      });
+      if (mounted) {
+        setState(() {
+          _discoverLoading = false;
+          _discoverLoadingMore = false;
+          _discoverError = e.toString().split('\n').first;
+        });
+      }
     }
   }
 

lib/widgets/settings_modal.dart

@@ -2,7 +2,6 @@ import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
 import 'dart:math';
-import 'dart:typed_data';
 
 import 'package:crypto/crypto.dart' as mcrypto;
 import 'package:pyramid/core/fcm_push_service.dart';
@@ -3666,17 +3665,21 @@ class _EncryptionSectionState extends ConsumerState<_EncryptionSection> {
       final file = File('${dir.path}/pyramid_keys_$stamp.txt');
       await file.writeAsString(encrypted);
 
-      if (mounted) setState(() {
-        _exportLoading = false;
-        _keyFileMsgIsError = false;
-        _keyFileMsg = '${sessions.length} Schlüssel exportiert → ${file.path}';
-      });
+      if (mounted) {
+        setState(() {
+          _exportLoading = false;
+          _keyFileMsgIsError = false;
+          _keyFileMsg = '${sessions.length} Schlüssel exportiert → ${file.path}';
+        });
+      }
     } catch (e) {
-      if (mounted) setState(() {
-        _exportLoading = false;
-        _keyFileMsgIsError = true;
-        _keyFileMsg = 'Export fehlgeschlagen: ${e.toString().split('\n').first}';
-      });
+      if (mounted) {
+        setState(() {
+          _exportLoading = false;
+          _keyFileMsgIsError = true;
+          _keyFileMsg = 'Export fehlgeschlagen: ${e.toString().split('\n').first}';
+        });
+      }
     }
   }
 
@@ -3753,17 +3756,21 @@ class _EncryptionSectionState extends ConsumerState<_EncryptionSection> {
         } catch (_) { continue; }
       }
 
-      if (mounted) setState(() {
-        _importLoading = false;
-        _keyFileMsgIsError = false;
-        _keyFileMsg = '$imported von ${sessions.length} Schlüssel importiert.';
-      });
+      if (mounted) {
+        setState(() {
+          _importLoading = false;
+          _keyFileMsgIsError = false;
+          _keyFileMsg = '$imported von ${sessions.length} Schlüssel importiert.';
+        });
+      }
     } catch (e) {
-      if (mounted) setState(() {
-        _importLoading = false;
-        _keyFileMsgIsError = true;
-        _keyFileMsg = 'Import fehlgeschlagen: ${e.toString().split('\n').first}';
-      });
+      if (mounted) {
+        setState(() {
+          _importLoading = false;
+          _keyFileMsgIsError = true;
+          _keyFileMsg = 'Import fehlgeschlagen: ${e.toString().split('\n').first}';
+        });
+      }
     }
   }