feat(bmad): initialize comprehensive BMAD system with agents and configurations

Add complete BMAD method implementation including:
- 20+ specialized agents (dev, qa, pm, architect, etc.)
- 50+ reusable tasks for workflow automation
- IDE-specific configurations for Claude, Cursor, Gemini
- Chat modes and rule definitions for various environments
- Web bundles and team configurations
- Documentation and checklists for BMAD processes

This establishes the full BMAD ecosystem for collaborative development workflows.

.claude/commands/bmad-cw/tasks/generate-cover-brief.md

@@ -0,0 +1,29 @@
+# /generate-cover-brief Task
+
+When this command is used, execute the following task:
+
+<!-- Powered by BMAD™ Core -->
+
+# ------------------------------------------------------------
+
+# tasks/generate-cover-brief.md
+
+# ------------------------------------------------------------
+
+---
+
+task:
+id: generate-cover-brief
+name: Generate Cover Brief
+description: Interactive questionnaire that captures all creative and technical parameters for the cover.
+persona_default: cover-designer
+steps:
+
+- Ask for title, subtitle, author name, series info.
+- Ask for genre, target audience, comparable titles.
+- Ask for trim size (e.g., 6"x9"), page count, paper color.
+- Ask for mood keywords, primary imagery, color palette.
+- Ask what should appear on back cover (blurb, reviews, author bio, ISBN location).
+- Fill cover-design-brief-tmpl with collected info.
+  output: cover-brief.md
+  ...