fix: tangle.py write-once-then-append logic (was always-appending, triplicating files); confirm-dialog option plist comparison; mouse-event button type (or keyword null)

scripts/tangle.py

@@ -18,6 +18,7 @@ def tangle_file(org_path):
     )
     
     count = 0
+    block_count = {}
     for match in pattern.finditer(text):
         lang = match.group(1)
         header = match.group(2)
@@ -42,14 +43,18 @@ def tangle_file(org_path):
         if tangle_path == 'no':
             continue
         
-        # Write the content (append if same file already written)
+        # Write the content (write mode — each run produces clean files)
         content = content.rstrip('\n') + '\n'
-        if os.path.exists(target):
+        if os.path.exists(target) and block_count.get(target, 0) == 0:
+            with open(target, 'w') as f:
+                f.write(content)
+        elif os.path.exists(target):
             with open(target, 'a') as f:
                 f.write('\n' + content)
         else:
             with open(target, 'w') as f:
                 f.write(content)
+        block_count[target] = block_count.get(target, 0) + 1
         print(f"  {target} ({len(content)} bytes)")
         count += 1