feat: Add automatic git staging before commit in PatchClient

- Introduced a new step to stage all changes using 'git add .' before committing
- Added console logging and progress callback for the staging process
- Ensures all modified files are included in the subsequent commit

Author: stevengonsalvez

src/patch.ts

@@ -795,6 +795,13 @@ export class PatchClient {
         };
       }
 
+      // Stage all changes before committing
+      console.log('Staging changes...');
+      if (progressCallback) {
+        progressCallback('staging', {});
+      }
+      await this.executeCommand('git', ['add', '.']);
+      
       // Commit changes
       console.log('Committing changes...');
       if (progressCallback) {