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/_memory/storyteller-sidecar/stories-told.md

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+# Story Record Template
+
+Purpose: Record a log detailing the stories I have crafted over time for the user.
+
+## Narratives Told Table Record
+
+<!-- track stories created metadata with the user over time -->

_bmad/_memory/storyteller-sidecar/story-preferences.md

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+# Story Record Template
+
+Purpose: Record a log of learned users story telling or story building preferences.
+
+## User Preference Bullet List
+
+<!-- record any user preferences about story crafting the user prefers -->