CI: run existing grpc/http test suites against Rust volume server

Add rust-volume-go-tests job that runs the full Go volume server test
matrix (grpc + http, 3 shards each) with VOLUME_SERVER_IMPL=rust.
Also fix concurrency key and add proto path triggers per review.

.github/workflows/rust-volume-server-tests.yml

@@ -6,16 +6,20 @@ on:
     paths:
       - 'seaweed-volume/**'
       - 'test/volume_server/**'
+      - 'weed/pb/volume_server.proto'
+      - 'weed/pb/volume_server_pb/**'
       - '.github/workflows/rust-volume-server-tests.yml'
   push:
     branches: [ master, main ]
     paths:
       - 'seaweed-volume/**'
       - 'test/volume_server/**'
+      - 'weed/pb/volume_server.proto'
+      - 'weed/pb/volume_server_pb/**'
       - '.github/workflows/rust-volume-server-tests.yml'
 
 concurrency:
-  group: ${{ github.head_ref || github.ref }}/rust-volume-server-tests
+  group: ${{ github.workflow }}-${{ github.head_ref || github.ref }}
   cancel-in-progress: true
 
 permissions:
@@ -127,3 +131,114 @@ jobs:
           echo "## Rust Volume Server Integration Test Summary" >> "$GITHUB_STEP_SUMMARY"
           echo "- Suite: test/volume_server/rust" >> "$GITHUB_STEP_SUMMARY"
           echo "- Command: go test -v -count=1 -timeout=15m ./test/volume_server/rust/..." >> "$GITHUB_STEP_SUMMARY"
+
+  rust-volume-go-tests:
+    name: Go Tests with Rust Volume (${{ matrix.test-type }} - Shard ${{ matrix.shard }})
+    runs-on: ubuntu-22.04
+    timeout-minutes: 45
+    strategy:
+      fail-fast: false
+      matrix:
+        test-type: [grpc, http]
+        shard: [1, 2, 3]
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v6
+
+      - name: Set up Go ${{ env.GO_VERSION }}
+        uses: actions/setup-go@v6
+        with:
+          go-version: ${{ env.GO_VERSION }}
+
+      - name: Install protobuf compiler
+        run: sudo apt-get update && sudo apt-get install -y protobuf-compiler
+
+      - name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Cache cargo registry and target
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+            seaweed-volume/target
+          key: rust-${{ hashFiles('seaweed-volume/Cargo.lock') }}
+          restore-keys: |
+            rust-
+
+      - name: Build Go weed binary
+        run: |
+          cd weed
+          go build -o weed .
+          chmod +x weed
+          ./weed version
+
+      - name: Build Rust volume binary
+        run: cd seaweed-volume && cargo build --release
+
+      - name: Run volume server integration tests with Rust volume
+        env:
+          WEED_BINARY: ${{ github.workspace }}/weed/weed
+          RUST_VOLUME_BINARY: ${{ github.workspace }}/seaweed-volume/target/release/seaweed-volume
+          VOLUME_SERVER_IMPL: rust
+        run: |
+          if [ "${{ matrix.test-type }}" == "grpc" ]; then
+            if [ "${{ matrix.shard }}" == "1" ]; then
+              TEST_PATTERN="^Test[A-H]"
+            elif [ "${{ matrix.shard }}" == "2" ]; then
+              TEST_PATTERN="^Test[I-S]"
+            else
+              TEST_PATTERN="^Test[T-Z]"
+            fi
+          else
+            if [ "${{ matrix.shard }}" == "1" ]; then
+              TEST_PATTERN="^Test[A-G]"
+            elif [ "${{ matrix.shard }}" == "2" ]; then
+              TEST_PATTERN="^Test[H-R]"
+            else
+              TEST_PATTERN="^Test[S-Z]"
+            fi
+          fi
+          echo "Running Go volume server tests with Rust volume for ${{ matrix.test-type }} (Shard ${{ matrix.shard }}, pattern: ${TEST_PATTERN})..."
+          go test -v -count=1 -timeout=30m ./test/volume_server/${{ matrix.test-type }}/... -run "${TEST_PATTERN}"
+
+      - name: Collect logs on failure
+        if: failure()
+        run: |
+          mkdir -p /tmp/rust-volume-go-test-logs
+          find /tmp -maxdepth 1 -type d -name "seaweedfs_volume_server_it_*" -print -exec cp -r {} /tmp/rust-volume-go-test-logs/ \; || true
+
+      - name: Archive logs on failure
+        if: failure()
+        uses: actions/upload-artifact@v7
+        with:
+          name: rust-volume-go-test-logs-${{ matrix.test-type }}-shard${{ matrix.shard }}
+          path: /tmp/rust-volume-go-test-logs/
+          if-no-files-found: warn
+          retention-days: 7
+
+      - name: Test summary
+        if: always()
+        run: |
+          if [ "${{ matrix.test-type }}" == "grpc" ]; then
+            if [ "${{ matrix.shard }}" == "1" ]; then
+              TEST_PATTERN="^Test[A-H]"
+            elif [ "${{ matrix.shard }}" == "2" ]; then
+              TEST_PATTERN="^Test[I-S]"
+            else
+              TEST_PATTERN="^Test[T-Z]"
+            fi
+          else
+            if [ "${{ matrix.shard }}" == "1" ]; then
+              TEST_PATTERN="^Test[A-G]"
+            elif [ "${{ matrix.shard }}" == "2" ]; then
+              TEST_PATTERN="^Test[H-R]"
+            else
+              TEST_PATTERN="^Test[S-Z]"
+            fi
+          fi
+          echo "## Rust Volume - Go Test Summary (${{ matrix.test-type }} - Shard ${{ matrix.shard }})" >> "$GITHUB_STEP_SUMMARY"
+          echo "- Suite: test/volume_server/${{ matrix.test-type }} (Pattern: ${TEST_PATTERN})" >> "$GITHUB_STEP_SUMMARY"
+          echo "- Volume server: Rust (VOLUME_SERVER_IMPL=rust)" >> "$GITHUB_STEP_SUMMARY"