feat(bench): add embeddable chart endpoints with PNG rendering

.asf.yaml

@@ -46,7 +46,7 @@ github:
     io_uring_tpc:
       required_pull_request_reviews:
         dismiss_stale_reviews: true
-        required_approving_review_count: 1  
+        required_approving_review_count: 1
       required_conversation_resolution: true
   custom_subjects:
     new_discussion: "{title}"

.github/actions/rust/pre-merge/action.yml

@@ -173,7 +173,13 @@ runs:
 
     - name: Build aarch64-musl
       if: inputs.task == 'build-aarch64-musl'
-      run: cargo build --locked --target aarch64-unknown-linux-musl
+      # Exclude dashboard crates: charming's "ssr" feature pulls deno_core -> v8,
+      # which has no prebuilt binary for aarch64-unknown-linux-musl.
+      # TODO: support when upstream rusty_v8 publishes aarch64-musl binaries.
+      run: >-
+        cargo build --locked --workspace --target aarch64-unknown-linux-musl
+        --exclude iggy-bench-dashboard-server
+        --exclude bench-dashboard-frontend
       shell: bash
       env:
         # Disable GCC outline atomics to avoid undefined __aarch64_ldadd4_sync

.github/workflows/_build_rust_artifacts.yml

@@ -144,7 +144,16 @@ jobs:
             export CARGO_TARGET_AARCH64_UNKNOWN_LINUX_MUSL_LINKER=musl-gcc
           fi
 
-          cargo build --locked --release --target ${{ matrix.target }} "${bin_flags[@]}"
+          # iggy-bench-dashboard-server enables charming's "ssr" feature (deno_core -> v8).
+          # v8 has no prebuilt binary for aarch64-unknown-linux-musl, so exclude dashboard
+          # crates to prevent cargo feature unification from pulling V8 into unrelated binaries.
+          # TODO: build V8 from source (V8_FROM_SOURCE=1, ~30min + clang) or wait for upstream support.
+          exclude_flags=()
+          if [[ "${{ matrix.target }}" == "aarch64-unknown-linux-musl" ]]; then
+            exclude_flags+=(--workspace --exclude iggy-bench-dashboard-server --exclude bench-dashboard-frontend)
+          fi
+
+          cargo build --locked --release --target ${{ matrix.target }} "${bin_flags[@]}" "${exclude_flags[@]}"
 
       - name: Package binaries
         id: pkg