/plan -- Architecture-Aware Planning What Enters a structured planning mode that considers the project's architecture pattern before producing an implementation plan. Instead of jumping straight to code, this command forces a deliberate pause to: - Identify the project's current architecture (or recommend one) - Map the task to affected layers, modules, and boundaries - Produce a numbered implementation plan with clear steps - Iterate on the plan until it is solid before writing any code Plans are living documents -- if something goes sideways during implementation, stop and re-plan rather th…