Fix CLI streaming to use iter_content with smaller chunks for real-time output

coder

@@ -416,11 +416,15 @@ class CoderClient:
         tool_calls = []
         current_tool_call = None
         
-        for line in response.iter_lines():
-            if not line:
-                continue
+        # Use iter_content with smaller chunk size for better real-time handling
+        buffer = ""
+        for chunk in response.iter_content(chunk_size=256, decode_unicode=True):
+            if chunk:
+                buffer += chunk
                 
-            line = line.decode('utf-8')
+                # Process complete lines from buffer
+                while '\n' in buffer:
+                    line, buffer = buffer.split('\n', 1)
                     
                     # Handle SSE format
                     if line.startswith('data: '):
@@ -429,6 +433,9 @@ class CoderClient:
                     if line == '[DONE]':
                         break
                     
+                    if not line:
+                        continue
+                    
                     try:
                         data = json.loads(line)
                         delta = data.get('choices', [{}])[0].get('delta', {})