Enable sccache, increase cores to 2, fast build

.forgejo/workflows/botserver.yaml

@@ -7,7 +7,7 @@ on:
     branches: ["main"]
 
 env:
-  CARGO_BUILD_JOBS: 1
+  CARGO_BUILD_JOBS: 2
   CARGO_INCREMENTAL: 0
   CARGO_NET_RETRY: 10
 
@@ -30,7 +30,7 @@ jobs:
           cd workspace
           git submodule update --init --depth 1 botlib
           git submodule update --init --depth 1 botui
-          rm .cargo/config.toml
+
 
           # Remove missing members from workspace to prevent Cargo errors
           sed -i '/"botapp",/d' Cargo.toml
@@ -39,7 +39,7 @@ jobs:
           cd ..
           rm -rf workspace/botserver
           mv botserver workspace/botserver
-          rm -f workspace/botserver/.cargo/config.toml
+
 
 
       - name: Cache Cargo registry
@@ -63,13 +63,23 @@ jobs:
           curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable --profile minimal
           echo "$HOME/.cargo/bin" >> $GITHUB_PATH
 
+      - name: Install sccache
+        run: |
+          wget https://github.com/mozilla/sccache/releases/download/v0.8.2/sccache-v0.8.2-x86_64-unknown-linux-musl.tar.gz
+          tar xzf sccache-v0.8.2-x86_64-unknown-linux-musl.tar.gz
+          mv sccache-v0.8.2-x86_64-unknown-linux-musl/sccache $HOME/.cargo/bin/sccache
+          chmod +x $HOME/.cargo/bin/sccache
+          echo "RUSTC_WRAPPER=sccache" >> $GITHUB_ENV
+          echo "SCCACHE_DIR=/opt/gbo/sccache" >> $GITHUB_ENV
+
+
       - name: Setup environment
         run: sudo cp /opt/gbo/bin/system/.env . 2>/dev/null || true
 
       - name: Build debug
         working-directory: workspace
         run: |
-          cargo build -p botserver -p botui -j 1 2>&1 | tee /tmp/build.log
+          cargo build -p botserver -p botui -j 2 2>&1 | tee /tmp/build.log
           ls -lh target/debug/botserver
           ls -lh target/debug/botui