move agent builder docs, create workflow builder docs, and a new workflow builder to conform to stepwise workflow creation

src/modules/bmb/docs/workflows/index.md

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+# BMAD Workflows Documentation
+
+Welcome to the BMAD Workflows documentation - a modern system for creating structured, collaborative workflows optimized for AI execution.
+
+## 📚 Core Documentation
+
+### [Terms](./terms.md)
+
+Essential terminology and concepts for understanding BMAD workflows.
+
+### [Architecture & Execution Model](./architecture.md)
+
+The micro-file architecture, JIT step loading, state management, and collaboration patterns that make BMAD workflows optimal for AI execution.
+
+### [Writing Workflows](./writing-workflows.md)
+
+Complete guide to creating workflows: workflow.md control files, step files, CSV data integration, and frontmatter design.
+
+### [Step Files & Dialog Patterns](./step-files.md)
+
+Crafting effective step files: structure, execution rules, prescriptive vs intent-based dialog, and validation patterns.
+
+### [Templates & Content Generation](./templates.md)
+
+Creating append-only templates, frontmatter design, conditional content, and dynamic content generation strategies.
+
+### [Workflow Patterns](./patterns.md)
+
+Common workflow types: linear, conditional, protocol integration, multi-agent workflows, and real-world examples.
+
+### [Migration Guide](./migration.md)
+
+Converting from XML-heavy workflows to the new pure markdown format, with before/after examples and checklist.
+
+### [Best Practices & Reference](./best-practices.md)
+
+Critical rules, anti-patterns, performance optimization, debugging, quick reference templates, and troubleshooting.
+
+## 🚀 Quick Start
+
+BMAD workflows are pure markdown, self-contained systems that guide collaborative processes through structured step files where the AI acts as a facilitator working with humans.
+
+---
+
+_This documentation covers the next generation of BMAD workflows - designed from the ground up for optimal AI-human collaboration._