Enhance ZSTD library linking and verification

- Add zstd package for complete ZSTD support
- Add comprehensive ZSTD library verification step
- Set PKG_CONFIG_PATH, LIBRARY_PATH, and LD_LIBRARY_PATH for proper linking
- Verify pkg-config can find and link ZSTD library
- Address OpenSSL ZSTD compression linking issues

.forgejo/workflows/build-artifacts.yml

@@ -62,10 +62,25 @@ jobs:
       - name: Checkout code and setup environment
         run: |
           apt update -y
-          apt install -y git curl pkg-config libssl-dev libsystemd-dev build-essential file zip nodejs npm iproute2 dnsutils iputils-ping libzstd-dev libzstd1
+          apt install -y git curl pkg-config libssl-dev libsystemd-dev build-essential file zip nodejs npm iproute2 dnsutils iputils-ping libzstd-dev libzstd1 zstd
           # Install additional packages for memory management and stability
           apt install -y procps htop iotop sysstat numactl libnuma-dev
           
+          # Verify ZSTD library availability and linking
+          echo "=== ZSTD LIBRARY VERIFICATION ==="
+          echo "Checking ZSTD packages:"
+          dpkg -l | grep zstd || echo "No ZSTD packages found"
+          echo "Checking ZSTD library files:"
+          find /usr/lib -name "*zstd*" 2>/dev/null || echo "No ZSTD library files found"
+          echo "Checking pkg-config for ZSTD:"
+          pkg-config --exists libzstd && echo "✅ libzstd found via pkg-config" || echo "❌ libzstd not found via pkg-config"
+          echo "ZSTD library version:"
+          pkg-config --modversion libzstd 2>/dev/null || echo "Could not get ZSTD version"
+          echo "ZSTD linking flags:"
+          pkg-config --libs libzstd 2>/dev/null || echo "Could not get ZSTD linking flags"
+          echo "ZSTD cflags:"
+          pkg-config --cflags libzstd 2>/dev/null || echo "Could not get ZSTD cflags"
+          
           # Install required Rust components
           rustup component add clippy rustfmt rust-src rust-analysis
           
@@ -204,6 +219,11 @@ jobs:
           export CARGO_INCREMENTAL=0
           export CARGO_NET_RETRY=3
           
+          # Set ZSTD library linking
+          export PKG_CONFIG_PATH="/usr/lib/x86_64-linux-gnu/pkgconfig:/usr/share/pkgconfig:$PKG_CONFIG_PATH"
+          export LIBRARY_PATH="/usr/lib/x86_64-linux-gnu:$LIBRARY_PATH"
+          export LD_LIBRARY_PATH="/usr/lib/x86_64-linux-gnu:$LD_LIBRARY_PATH"
+          
           # Set memory limits for compilation
           ulimit -v 3145728  # 3GB virtual memory limit