ci(github): remove stylua diff step from workflow

- remove formatting diff display step that runs on check failure
- simplify stylua check workflow to only perform format validation
- clean up function parameter formatting in generator.lua

Author: jinzhongjia

.github/workflows/stylua-check.yml

@@ -20,12 +20,3 @@ jobs:
           version: latest # NOTE: we recommend pinning to a specific version in case of formatting changes
           # CLI arguments
           args: --check .
-                
-      - name: Show formatting diff (if check fails) 
-        if: failure()
-        uses: JohnnyMorganz/stylua-action@v4
-        with:
-          token: ${{ secrets.GITHUB_TOKEN }}
-          version: latest
-          args: --diff .
-

lua/codecompanion/_extensions/gitcommit/generator.lua

@@ -33,11 +33,7 @@ end
 ---@param diff string The git diff to analyze
 ---@param lang? string The language to generate the commit message in (optional)
 ---@param callback fun(result: string|nil, error: string|nil) Callback function
-function Generator.generate_commit_message(
-  diff,
-  lang,
-  callback
-)
+function Generator.generate_commit_message(diff, lang, callback)
   -- Setup adapter
   local adapter = codecompanion_adapter.resolve(_adapater)
   if not adapter then