- src/error.rs: pub enum Error via thiserror with Registration
(#[from] TemplateError) and Render (#[from] RenderError) variants;
substrate errors stay reachable through the source chain
- src/lib.rs re-exports alkgen::Error per convention 10
- six unit tests pin variant mapping, source-chain reachability, and
operation-naming Display strings
- no catch-all; no context-build arm in this scope (recorded
interpretation, flagged for the wave-1 gate)
Verification: cargo test, clippy -D warnings, fmt --check, cargo doc,
wasm32-unknown-unknown release build, taskgraph validate (14 tasks)
all green
glm-5.3-flash
02037c4f10