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

crates/components/Cargo.toml

@@ -0,0 +1,26 @@
+[package]
+name = "entropyk-components"
+version = "0.1.0"
+edition = "2021"
+authors = ["Sepehr <sepehr@entropyk.com>"]
+description = "Core component trait definitions for Entropyk thermodynamic simulation library"
+license = "MIT OR Apache-2.0"
+repository = "https://github.com/entropyk/entropyk"
+
+[dependencies]
+# Core types will be added when core crate is created
+# entropyk-core = { path = "../core" }
+
+# Error handling
+thiserror = "1.0"
+
+# Serialization
+serde = { version = "1.0", features = ["derive"] }
+
+[dev-dependencies]
+# Testing utilities
+# tokio-test = "0.4"
+
+[lib]
+name = "entropyk_components"
+path = "src/lib.rs"