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/_config/manifest.yaml

@@ -0,0 +1,37 @@
+installation:
+  version: 6.0.0-Beta.8
+  installDate: 2026-02-12T20:59:56.383Z
+  lastUpdated: 2026-02-12T20:59:56.383Z
+modules:
+  - name: core
+    version: 6.0.0-Beta.8
+    installDate: 2026-02-12T20:59:55.888Z
+    lastUpdated: 2026-02-12T20:59:55.888Z
+    source: built-in
+    npmPackage: null
+    repoUrl: null
+  - name: bmb
+    version: 0.1.6
+    installDate: 2026-02-12T20:59:54.421Z
+    lastUpdated: 2026-02-12T20:59:56.136Z
+    source: external
+    npmPackage: bmad-builder
+    repoUrl: https://github.com/bmad-code-org/bmad-builder
+  - name: bmm
+    version: 6.0.0-Beta.8
+    installDate: 2026-02-12T20:59:54.514Z
+    lastUpdated: 2026-02-12T20:59:56.136Z
+    source: built-in
+    npmPackage: null
+    repoUrl: null
+  - name: cis
+    version: 0.1.6
+    installDate: 2026-02-12T20:59:55.869Z
+    lastUpdated: 2026-02-12T20:59:56.383Z
+    source: external
+    npmPackage: bmad-creative-intelligence-suite
+    repoUrl: https://github.com/bmad-code-org/bmad-module-creative-intelligence-suite
+ides:
+  - cursor
+  - antigravity
+  - opencode