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

_bmad/bmm/workflows/bmad-quick-flow/quick-spec/workflow.md

@@ -68,9 +68,10 @@ This uses **step-file architecture** for disciplined execution:
 
 Load and read full config from `{main_config}` and resolve:
 
-- `project_name`, `output_folder`, `planning_artifacts`, `implementation_artifacts`, `user_name`
+- `project_name`, `planning_artifacts`, `implementation_artifacts`, `user_name`
 - `communication_language`, `document_output_language`, `user_skill_level`
 - `date` as system-generated current datetime
+- `project_context` = `**/project-context.md` (load if exists)
 - ✅ YOU MUST ALWAYS SPEAK OUTPUT In your Agent communication style with the config `{communication_language}`
 
 ### 2. First Step Execution