fix: address PR review comments

- Remove unused `digest` workspace dependency
- Remove non-canonical `authors` field from jolt-field
- Merge `arkworks` feature into `bn254` (single feature)

Author: 0xAndoroid

.github/workflows/fuzz-crates.yml

@@ -1,38 +1,39 @@
-name: Fuzz modular crates
+name: Fuzz jolt-field
 
 on:
   push:
     branches: [main]
     paths:
-      - "crates/**"
+      - "crates/jolt-field/**"
   pull_request:
     branches: [main]
     paths:
-      - "crates/**"
+      - "crates/jolt-field/**"
 
 env:
   CARGO_TERM_COLOR: always
   FUZZ_DURATION: 60
 
 concurrency:
-  group: fuzz-crates-${{ github.head_ref || github.ref }}
+  group: fuzz-jolt-field-${{ github.head_ref || github.ref }}
   cancel-in-progress: true
 
 jobs:
   fuzz:
     runs-on: ubuntu-latest
-    name: Fuzz targets
-    strategy:
-      fail-fast: false
-      matrix:
-        target: [from_bytes, field_arith, wide_accumulator_fmadd, wide_accumulator_merge]
+    name: Fuzz jolt-field
     steps:
       - uses: actions/checkout@v6
       - uses: actions-rust-lang/setup-rust-toolchain@v1
         with:
           toolchain: nightly
       - name: Install cargo-fuzz
         run: cargo install cargo-fuzz --locked
-      - name: Run ${{ matrix.target }}
+      - name: Fuzz all targets
         working-directory: crates/jolt-field
-        run: cargo +nightly fuzz run ${{ matrix.target }} -- -max_total_time=${{ env.FUZZ_DURATION }}
+        run: |
+          set -euo pipefail
+          for target in from_bytes field_arith wide_accumulator_fmadd wide_accumulator_merge; do
+            echo "--- Fuzzing $target for ${FUZZ_DURATION}s ---"
+            cargo +nightly fuzz run "$target" -- -max_total_time=$FUZZ_DURATION
+          done

Cargo.toml

@@ -235,7 +235,6 @@ sha3 = "0.10.8"
 blake2 = "0.10"
 blake3 = { version = "1.5.0" }
 light-poseidon = "0.4"
-digest = "0.10"
 jolt-optimizations = { git = "https://github.com/a16z/arkworks-algebra", branch = "dev/twist-shout" }
 dory = { package = "dory-pcs", version = "0.3.0", features = ["backends", "cache", "disk-persistence"] }
 

crates/jolt-field/Cargo.toml

@@ -1,7 +1,6 @@
 [package]
 name = "jolt-field"
 version = "0.1.0"
-authors = ["Jolt Contributors"]
 edition = "2021"
 license = "MIT OR Apache-2.0"
 description = "Field abstractions for the Jolt zkVM"
@@ -24,8 +23,7 @@ rand_core = { workspace = true }
 
 [features]
 default = ["bn254"]
-arkworks = ["dep:ark-ff", "dep:ark-serialize"]
-bn254 = ["dep:ark-bn254", "arkworks"]
+bn254 = ["dep:ark-ff", "dep:ark-serialize", "dep:ark-bn254"]
 allocative = ["dep:allocative"]
 
 [dev-dependencies]