chore: add BMAD agent workflows and configuration system

- Add comprehensive agent workflow definitions for 8 specialized roles (analyst, architect, developer, product manager, scrum master, technical writer, UX designer, QA engineer)
- Add 35+ workflow definitions covering analysis, planning, solutioning, and implementation phases
- Add BMAD configuration system with agent, task, tool, workflow, and file manifests
- Add BMM (Business Model Methodology) documentation including quick-start guides, architecture references, and workflow analysis
- Add test architecture knowledge base with 20+ testing patterns and best practices
- Add team configuration templates and party mode setup for collaborative development
- Establish foundation for enterprise agentic development framework with adaptive scaling capabilities

.bmad/docs/cursor-instructions.md

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+# BMAD Method - Cursor Instructions
+
+## Activating Agents
+
+BMAD agents are installed in `.cursor/rules/bmad/` as MDC rules.
+
+### How to Use
+
+1. **Reference in Chat**: Use `@.bmad/{module}/agents/{agent-name}`
+2. **Include Entire Module**: Use `@.bmad/{module}`
+3. **Reference Index**: Use `@.bmad/index` for all available agents
+
+### Examples
+
+```
+@.bmad/core/agents/dev - Activate dev agent
+@.bmad/bmm/agents/architect - Activate architect agent
+@.bmad/core - Include all core agents/tasks
+```
+
+### Notes
+
+- Rules are Manual type - only loaded when explicitly referenced
+- No automatic context pollution
+- Can combine multiple agents: `@.bmad/core/agents/dev @.bmad/core/agents/test`