Initial commit: BMAD framework + Story 1.1 Component Trait Definition

Features:
- BMAD (Build Modular AI-driven Development) framework setup
- BMM, BMB, CIS, Core modules configured
- Story 1.1: Component trait with error handling
- Workspace Cargo.toml with components crate
- 31 tests passing (19 unit + 12 doc tests)

Technical:
- Component trait with compute_residuals, jacobian_entries, n_equations
- ComponentError enum with thiserror
- JacobianBuilder for sparse matrix construction
- Object-safe trait supporting Box<dyn Component>
- Comprehensive documentation and examples

_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_