chore: upgrade BMAD framework to skill-based architecture

Migrates from slash-command files (.claude/commands, .cursor/commands)
to the new skill-based architecture with workflow step files.

_bmad/bmm/workflows/1-analysis/research/bmad-domain-research/research.template.md

@@ -0,0 +1,29 @@
+---
+stepsCompleted: []
+inputDocuments: []
+workflowType: 'research'
+lastStep: 1
+research_type: '{{research_type}}'
+research_topic: '{{research_topic}}'
+research_goals: '{{research_goals}}'
+user_name: '{{user_name}}'
+date: '{{date}}'
+web_research_enabled: true
+source_verification: true
+---
+
+# Research Report: {{research_type}}
+
+**Date:** {{date}}
+**Author:** {{user_name}}
+**Research Type:** {{research_type}}
+
+---
+
+## Research Overview
+
+[Research overview and methodology will be appended here]
+
+---
+
+<!-- Content will be appended sequentially through research workflow steps -->