feat: add GitHub Actions workflow for linting with Ruff (#1929)

* feat: add GitHub Actions workflow for linting with Ruff

* refactor: rename lint job and add formatting step to Ruff workflow

* chore: run ruff format

* chore: rename Ruff lint job to 'Lint' and add frontend linting workflow

src/langbot/pkg/platform/sources/lark.py

@@ -244,7 +244,6 @@ class LarkMessageConverter(abstract_platform_adapter.AbstractMessageConverter):
 
         lb_msg_list.append(platform_message.Source(id=message.message_id, time=msg_create_time))
 
-
         if message.message_type == 'text':
             element_list = []
 
@@ -310,7 +309,11 @@ class LarkMessageConverter(abstract_platform_adapter.AbstractMessageConverter):
             ]
         elif message.message_type == 'audio':
             message_content['content'] = [
-                {'tag': 'audio', 'file_key': message_content['file_key'], "duration": message_content.get('duration',0)}
+                {
+                    'tag': 'audio',
+                    'file_key': message_content['file_key'],
+                    'duration': message_content.get('duration', 0),
+                }
             ]
 
         for ele in message_content['content']:
@@ -367,12 +370,9 @@ class LarkMessageConverter(abstract_platform_adapter.AbstractMessageConverter):
                     audio_bytes = response.file.read()
                     audio_base64 = base64.b64encode(audio_bytes).decode()
 
-
                     # Get content type from response headers
                     content_type = response.raw.headers.get('content-type', 'audio/mpeg')
 
-
-
                     mime_main = content_type.split(';')[0].strip()
                     ext = mimetypes.guess_extension(mime_main) or '.bin'
                     temp_dir = tempfile.gettempdir()
@@ -418,7 +418,6 @@ class LarkMessageConverter(abstract_platform_adapter.AbstractMessageConverter):
                 file_bytes = response.file.read()
                 file_base64 = base64.b64encode(file_bytes).decode()
 
-
                 file_format = response.raw.headers['content-type']
 
                 file_size = len(file_bytes)
@@ -453,7 +452,6 @@ class LarkMessageConverter(abstract_platform_adapter.AbstractMessageConverter):
                     )
                 )
 
-
         return platform_message.MessageChain(lb_msg_list)
 
 

src/langbot/pkg/platform/sources/wecom.py

@@ -18,52 +18,52 @@ import langbot_plugin.api.entities.builtin.platform.entities as platform_entitie
 def split_string_by_bytes(text, limit=2048, encoding='utf-8'):
     """
     Splits a string into a list of strings, where each part is at most 'limit' bytes.
-    
+
     Args:
         text (str): The original string to split.
         limit (int): The maximum byte size for each split part.
         encoding (str): The encoding to use (default is 'utf-8').
-        
+
     Returns:
         list: A list of split strings.
     """
     # 1. Encode the entire string into bytes
     bytes_data = text.encode(encoding)
     total_len = len(bytes_data)
-    
+
     parts = []
     start = 0
-    
+
     while start < total_len:
         # 2. Determine the end index for the current chunk
         # It shouldn't exceed the total length
         end = min(start + limit, total_len)
-        
+
         # 3. Slice the byte array
         chunk = bytes_data[start:end]
-        
+
         # 4. Attempt to decode the chunk
         # Use errors='ignore' to drop any partial bytes at the end of the chunk
         # (e.g., if a 3-byte character was cut after the 2nd byte)
         part_str = chunk.decode(encoding, errors='ignore')
-        
+
         # 5. Calculate the actual byte length of the successfully decoded string
         # This tells us exactly where the valid character boundary ended
         part_bytes = part_str.encode(encoding)
         part_len = len(part_bytes)
-        
+
         # Safety check: Prevent infinite loop if limit is too small (e.g., limit=1 for a Chinese char)
         if part_len == 0 and end < total_len:
             # Force advance by 1 byte to consume the un-decodable byte or raise error
             # Here we just treat it as a part to avoid stuck loops, though it might be invalid
-            start += 1 
+            start += 1
             continue
 
         parts.append(part_str)
-        
+
         # 6. Move the start pointer by the actual length consumed
         start += part_len
-        
+
     return parts
 
 
@@ -75,13 +75,15 @@ class WecomMessageConverter(abstract_platform_adapter.AbstractMessageConverter):
         for msg in message_chain:
             if type(msg) is platform_message.Plain:
                 chunks = split_string_by_bytes(msg.text)
-                content_list.extend([
-                    {
-                        'type': 'text',
-                        'content': chunk,
-                    }
-                    for chunk in chunks
-                ])
+                content_list.extend(
+                    [
+                        {
+                            'type': 'text',
+                            'content': chunk,
+                        }
+                        for chunk in chunks
+                    ]
+                )
             elif type(msg) is platform_message.Image:
                 content_list.append(
                     {