Enhance cleanup dialog with sensitivity slider for problematic entries

lib/notes.dart

@@ -162,14 +162,14 @@ Future<List<Note>> searchNotes(String query) async {
 }
 
 // Find potentially problematic entries based on character distribution
-Future<List<Note>> findProblematicEntries() async {
-  const double maxCharPercentage = 0.7; // If a single char makes up more than 70%, it's suspicious
-  const int minLength = 10; // Only check notes longer than this
-
+Future<List<Note>> findProblematicEntries({
+  double maxCharPercentage = 0.7,
+}) async {
   // Simple SQLite query that counts character occurrences using replace
-  final List<Map<String, dynamic>> results = await DB.db.rawQuery('''
+  final List<Map<String, dynamic>> results = await DB.db.rawQuery(
+    '''
     WITH char_counts AS (
-      SELECT 
+      SELECT
         id,
         date,
         content,
@@ -178,18 +178,24 @@ Future<List<Note>> findProblematicEntries() async {
         length(content) as total_length,
         cast(length(content) - length(replace(content, substr(content, 1, 1), '')) as float) / length(content) as percentage
       FROM notes
-      WHERE length(content) >= ?
     )
     SELECT *
     FROM char_counts
     WHERE percentage > ?
     ORDER BY date DESC
-  ''', [minLength, maxCharPercentage]);
+  ''',
+    [maxCharPercentage],
+  );
 
-  return results.map((row) => Note(
-    date: row['date'] as String,
-    content: row['content'] as String,
-    isProblematic: true,
-    problemReason: 'Character "${row['char']}" makes up ${(row['percentage'] * 100).toStringAsFixed(1)}% of the content',
-  )).toList();
+  return results
+      .map(
+        (row) => Note(
+          date: row['date'] as String,
+          content: row['content'] as String,
+          isProblematic: true,
+          problemReason:
+              'Character "${row['char']}" makes up ${(row['percentage'] * 100).toStringAsFixed(1)}% of the content',
+        ),
+      )
+      .toList();
 }