* docs: update workflow plan with completed CI fixes
* fix(ci): remove wasm32v1-none target installation to fix serde_core compilation
This removes the explicit `rustup target add wasm32v1-none` step from CI
workflows. When wasm32v1-none is installed, the wasm-builder uses it instead
of wasm32-unknown-unknown, which causes serde_core 1.0.228 to fail compilation
with "relaxing a default bound only does something for ?Sized" errors.
By not installing wasm32v1-none, the wasm-builder automatically falls back to
wasm32-unknown-unknown which compiles successfully.
This aligns with Polkadot SDK's CI configuration which also does not explicitly
install wasm32v1-none.
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
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