chore: initial commit Dutra Store POS app

check_strings.py

@@ -0,0 +1,23 @@
+with open('D:\\app\\ai\\app-grosir\\test_syntax2.dart', 'r') as f:
+    lines = f.readlines()
+
+for i, line in enumerate(lines):
+    stripped = line.strip()
+    if stripped.startswith('//') or stripped.startswith('/*') or stripped.startswith('*'):
+        continue
+    in_string = False
+    escape = False
+    for j, c in enumerate(line):
+        if escape:
+            escape = False
+            continue
+        if c == '\\':
+            escape = True
+            continue
+        if c in "'\"":
+            if not in_string:
+                in_string = True
+            else:
+                in_string = False
+    if in_string:
+        print(f'Unclosed string at line {i+1}: {line.rstrip()}')