fix: reduce runner CPU by running build in background

.forgejo/workflows/botserver.yaml

@@ -67,20 +67,43 @@ jobs:
             echo "All system dependencies already installed"
           fi
 
-      - name: Build BotServer
+  - name: Build BotServer
-        working-directory: /opt/gbo/data/botserver
+    working-directory: /opt/gbo/data/botserver
-        run: |
+    run: |
-          export SCCACHE_IDLE_TIMEOUT=300
+      set -e
-          export SCCACHE_CACHE_SIZE=10G
+      export SCCACHE_IDLE_TIMEOUT=300
-          sccache --stop-server 2>/dev/null || true
+      export SCCACHE_CACHE_SIZE=10G
-          sleep 1
+      sccache --stop-server 2>/dev/null || true
-          sccache --start-server
+      sleep 1
-          cargo build -p botserver -j 8 2>&1 | tee /tmp/build.log
+      sccache --start-server
-          echo "=== sccache stats ==="
+      
-          sccache --show-stats
+      echo "=== Starting build in background ==="
-          echo "=== Binary info ==="
+      cargo build -p botserver -j 8 > /tmp/build.log 2>&1 &
-          ls -lh target/debug/botserver
+      BUILD_PID=$!
-          stat -c '%y' target/debug/botserver
+      echo "Build PID: $BUILD_PID"
+      
+      echo "=== Waiting for build to complete (PID: $BUILD_PID) ==="
+      while kill -0 $BUILD_PID 2>/dev/null; do
+        echo "Build in progress... (sleeping 30s)"
+        sleep 30
+      done
+      
+      wait $BUILD_PID
+      EXIT_CODE=$?
+      
+      echo "=== Build finished with exit code: $EXIT_CODE ==="
+      
+      if [ $EXIT_CODE -ne 0 ]; then
+        echo "=== Build FAILED ==="
+        tail -100 /tmp/build.log
+        exit $EXIT_CODE
+      fi
+      
+      echo "=== sccache stats ==="
+      sccache --show-stats
+      echo "=== Binary info ==="
+      ls -lh target/debug/botserver
+      stat -c '%y' target/debug/botserver
 
       - name: Save build log
         if: always()