The official github-copilot-sdk requires rust-version 1.94 +
edition 2024; the workspace was pinned to 1.85. Bump the toolchain
so the SDK can be adopted for the Copilot connection. Verified:
full native build, wasm32 web check, and shell-core tests all pass
on 1.94.1 with no new errors.
Phase 1 batch 3 implementer found 1.80 incompatible with current
crates.io ecosystem: parley → fontique → litemap 0.7.5 needs 1.81;
accesskit chain → indexmap 2.14 → hashbrown 0.17 needs edition2024
(1.85); skia-safe 0.75+ → home 0.5.12 needs 1.88. 1.82 is the sweet
spot that fixes litemap (and matches what Task 0.4 actually probed
with — 1.95).
shell-native dep set deviation (winit only, skia-safe + accesskit
deferred to Step 1 kill-spike when actually used) is documented in
the Phase 1 review trail. compile_error guard for wasm32 still fires
correctly — the load-bearing §1.2 invariant is satisfied.