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

Cargo.toml

@@ -0,0 +1,32 @@
+[workspace]
+members = [
+    "crates/components",
+    # "crates/core",      # Will be added in future stories
+    # "crates/solver",    # Will be added in future stories
+]
+resolver = "2"
+
+[workspace.package]
+version = "0.1.0"
+authors = ["Sepehr <sepehr@entropyk.com>"]
+edition = "2021"
+license = "MIT OR Apache-2.0"
+repository = "https://github.com/entropyk/entropyk"
+
+[workspace.dependencies]
+# Core dependencies used across crates
+thiserror = "1.0"
+serde = { version = "1.0", features = ["derive"] }
+
+# Internal crate dependencies
+# entropyk-core = { path = "crates/core" }
+# entropyk-components = { path = "crates/components" }
+
+[profile.release]
+opt-level = 3
+lto = true
+codegen-units = 1
+
+[profile.dev]
+opt-level = 0
+debug = true