feat(ux): implement masonry dashboard layout and immersive focus mode

_bmad/bmm/workflows/qa/automate/workflow.yaml

@@ -5,7 +5,6 @@ author: "BMad"
 
 # Critical variables from config
 config_source: "{project-root}/_bmad/bmm/config.yaml"
-output_folder: "{config_source}:output_folder"
 implementation_artifacts: "{config_source}:implementation_artifacts"
 user_name: "{config_source}:user_name"
 communication_language: "{config_source}:communication_language"
@@ -19,10 +18,8 @@ validation: "{installed_path}/checklist.md"
 template: false
 
 # Variables and inputs
-variables:
-  # Directory paths
-  test_dir: "{project-root}/tests" # Root test directory
-  source_dir: "{project-root}" # Source code directory
+test_dir: "{project-root}/tests" # Root test directory
+source_dir: "{project-root}" # Source code directory
 
 # Output configuration
 default_output_file: "{implementation_artifacts}/tests/test-summary.md"