ci(wasm): exclude willow-feedback from wasm32 workspace check

willow-feedback is a native-only worker binary (tokio "full" + reqwest +
mio), like willow-relay/worker/replay/storage/agent which are already
excluded. The WASM Check job builds the workspace minus those for
wasm32; feedback was missing from the exclude list, so CI tried to
compile it for wasm and failed with mio's `sys::*` unresolved imports.
`just check-wasm` uses an explicit include list (no feedback) so it
passed locally — this aligns CI with that.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: intendednull

.github/workflows/ci.yml

@@ -127,7 +127,7 @@ jobs:
             target
           key: wasm-${{ hashFiles('**/Cargo.lock') }}
           restore-keys: wasm-
-      - run: cargo check --target wasm32-unknown-unknown --workspace --exclude willow-relay --exclude willow-worker --exclude willow-replay --exclude willow-storage --exclude willow-agent
+      - run: cargo check --target wasm32-unknown-unknown --workspace --exclude willow-relay --exclude willow-worker --exclude willow-replay --exclude willow-storage --exclude willow-agent --exclude willow-feedback
       - name: Clippy (wasm32, willow-web)
         run: cargo clippy --target wasm32-unknown-unknown -p willow-web --all-targets -- -D warnings