m01▌

Layer 1: Language Mechanics

Rust ownership and lifetime error diagnosis through design-first questioning. \n \n Covers seven critical error codes (E0382, E0597, E0506, E0507, E0515, E0716, E0106) with root-cause questions rather than quick fixes \n Guides developers to ask \"who should own this data?\" before applying syntax solutions, distinguishing between symptom fixes and design restructuring \n Provides decision trees for choosing between move semantics, borrowing, cloning, and smart pointers (Arc, Rc, Cow) based on d