Rewrite as Flutter app and rename to Quicklogmain

Drop the Go/Fyne implementation and replace it with a native Flutter app
targeting Android (primary) and Linux desktop (development). Rename
quicklogger -> quicklog throughout (project, applicationId, MethodChannel,
cache filename, AppBar title, Linux binary).

Storage on Android moves to /Android/data/org.buetow.quicklog/files/ so
MANAGE_EXTERNAL_STORAGE is no longer required. Share-intent receive is
preserved via a Kotlin ShareActivity that writes shared text to the app
cache, which Dart reads through a MethodChannel on app resume; MainActivity
also accepts SEND directly so launchers that prefer the main target work.

New since the Fyne version: an entry browser screen with read-only viewer
and long-press delete.

Cross-compiling to Android ARM from amd64 Linux no longer needs Docker /
fyne-cross / NDK -- flutter build apk emits ARM binaries directly.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/lib/services/storage.dart b/lib/services/storage.dart
new file mode 100644
index 0000000..e5a0f50
--- /dev/null
+++ b/lib/services/storage.dart
@@ -0,0 +1,14 @@
+import 'dart:io' show Directory, Platform;
+
+import 'package:path_provider/path_provider.dart';
+
+const String defaultLinuxDirectory = '.';
+
+Future<String> defaultLogDirectory() async {
+  if (Platform.isAndroid) {
+    final dir = await getExternalStorageDirectory();
+    if (dir != null) return dir.path;
+    return (await getApplicationDocumentsDirectory()).path;
+  }
+  return Directory.current.path;
+}