docs: massive documentation overhaul + introduce Paige (Documentation Guide agent)

## 📚 Complete Documentation Restructure

**BMM Documentation Hub Created:**
- New centralized documentation system at `src/modules/bmm/docs/`
- 18 comprehensive guides organized by topic (7000+ lines total)
- Clear learning paths for greenfield, brownfield, and quick spec flows
- Professional technical writing standards throughout

**New Documentation:**
- `README.md` - Complete documentation hub with navigation
- `quick-start.md` - 15-minute getting started guide
- `agents-guide.md` - Comprehensive 12-agent reference (45 min read)
- `party-mode.md` - Multi-agent collaboration guide (20 min read)
- `scale-adaptive-system.md` - Deep dive on Levels 0-4 (42 min read)
- `brownfield-guide.md` - Existing codebase development (53 min read)
- `quick-spec-flow.md` - Rapid Level 0-1 development (26 min read)
- `workflows-analysis.md` - Phase 1 workflows (12 min read)
- `workflows-planning.md` - Phase 2 workflows (19 min read)
- `workflows-solutioning.md` - Phase 3 workflows (13 min read)
- `workflows-implementation.md` - Phase 4 workflows (33 min read)
- `workflows-testing.md` - Testing & QA workflows (29 min read)
- `workflow-architecture-reference.md` - Architecture workflow deep-dive
- `workflow-document-project-reference.md` - Document-project workflow reference
- `enterprise-agentic-development.md` - Team collaboration patterns
- `faq.md` - Comprehensive Q&A covering all topics
- `glossary.md` - Complete terminology reference
- `troubleshooting.md` - Common issues and solutions

**Documentation Improvements:**
- Removed all version/date footers (git handles versioning)
- Agent customization docs now include full rebuild process
- Cross-referenced links between all guides
- Reading time estimates for all major docs
- Consistent professional formatting and structure

**Consolidated & Streamlined:**
- Module README (`src/modules/bmm/README.md`) streamlined to lean signpost
- Root README polished with better hierarchy and clear CTAs
- Moved docs from root `docs/` to module-specific locations
- Better separation of user docs vs. developer reference

## 🤖 New Agent: Paige (Documentation Guide)

**Role:** Technical documentation specialist and information architect

**Expertise:**
- Professional technical writing standards
- Documentation structure and organization
- Information architecture and navigation
- User-focused content design
- Style guide enforcement

**Status:** Work in progress - Paige will evolve as documentation needs grow

**Integration:**
- Listed in agents-guide.md, glossary.md, FAQ
- Available for all phases (documentation is continuous)
- Can be customized like all BMM agents

## 🔧 Additional Changes

- Updated agent manifest with Paige
- Updated workflow manifest with new documentation workflows
- Fixed workflow-to-agent mappings across all guides
- Improved root README with clearer Quick Start section
- Better module structure explanations
- Enhanced community links with Discord channel names

**Total Impact:**
- 18 new/restructured documentation files
- 7000+ lines of professional technical documentation
- Complete navigation system with cross-references
- Clear learning paths for all user types
- Foundation for knowledge base (coming in beta)

Co-Authored-By: Claude <noreply@anthropic.com>

bmad/bmm/workflows/document-project/templates/project-overview-template.md

@@ -0,0 +1,103 @@
+# {{project_name}} - Project Overview
+
+**Date:** {{date}}
+**Type:** {{project_type}}
+**Architecture:** {{architecture_type}}
+
+## Executive Summary
+
+{{executive_summary}}
+
+## Project Classification
+
+- **Repository Type:** {{repository_type}}
+- **Project Type(s):** {{project_types_list}}
+- **Primary Language(s):** {{primary_languages}}
+- **Architecture Pattern:** {{architecture_pattern}}
+
+{{#if is_multi_part}}
+
+## Multi-Part Structure
+
+This project consists of {{parts_count}} distinct parts:
+
+{{#each project_parts}}
+
+### {{part_name}}
+
+- **Type:** {{project_type}}
+- **Location:** `{{root_path}}`
+- **Purpose:** {{purpose}}
+- **Tech Stack:** {{tech_stack}}
+  {{/each}}
+
+### How Parts Integrate
+
+{{integration_description}}
+{{/if}}
+
+## Technology Stack Summary
+
+{{#if is_single_part}}
+{{technology_table}}
+{{else}}
+{{#each project_parts}}
+
+### {{part_name}} Stack
+
+{{technology_table}}
+{{/each}}
+{{/if}}
+
+## Key Features
+
+{{key_features}}
+
+## Architecture Highlights
+
+{{architecture_highlights}}
+
+## Development Overview
+
+### Prerequisites
+
+{{prerequisites}}
+
+### Getting Started
+
+{{getting_started_summary}}
+
+### Key Commands
+
+{{#if is_single_part}}
+
+- **Install:** `{{install_command}}`
+- **Dev:** `{{dev_command}}`
+- **Build:** `{{build_command}}`
+- **Test:** `{{test_command}}`
+  {{else}}
+  {{#each project_parts}}
+
+#### {{part_name}}
+
+- **Install:** `{{install_command}}`
+- **Dev:** `{{dev_command}}`
+  {{/each}}
+  {{/if}}
+
+## Repository Structure
+
+{{repository_structure_summary}}
+
+## Documentation Map
+
+For detailed information, see:
+
+- [index.md](./index.md) - Master documentation index
+- [architecture.md](./architecture{{#if is_multi_part}}-{part_id}{{/if}}.md) - Detailed architecture
+- [source-tree-analysis.md](./source-tree-analysis.md) - Directory structure
+- [development-guide.md](./development-guide{{#if is_multi_part}}-{part_id}{{/if}}.md) - Development workflow
+
+---
+
+_Generated using BMAD Method `document-project` workflow_