fix(ci): Remove internet-dependent rust/sccache installation steps

- alm-ci has Rust and tools pre-installed offline
- Remove sccache/cargo cache environment variables
- Remove sccache server startup and cache directory creation

.forgejo/workflows/botui.yaml

@@ -9,9 +9,6 @@ on:
 env:
   CARGO_BUILD_JOBS: 6
   CARGO_NET_RETRY: 10
-  SCCACHE_DIR: /opt/gbo/cache/sccache
-  RUSTC_WRAPPER: sccache
-  CARGO_HOME: /opt/gbo/cache/cargo
 
 jobs:
   build:
@@ -33,8 +30,6 @@ jobs:
       - name: Setup Workspace
         run: |
           mkdir -p /opt/gbo/ci/botui
-          mkdir -p $SCCACHE_DIR
-          mkdir -p $CARGO_HOME/registry
           # Clone the main gb repository
           git clone --depth 1 --branch main https://alm.pragmatismo.com.br/GeneralBots/gb.git /opt/gbo/ci/botui/workspace
           cd /opt/gbo/ci/botui/workspace
@@ -53,16 +48,6 @@ jobs:
           sed -i '/"botplugin",/d' Cargo.toml
           sed -i '/"bottemplates",/d' Cargo.toml
 
-      - name: Setup PATH for globally installed tools
-        run: |
-          echo "$HOME/.cargo/bin" >> $GITHUB_PATH
-          echo "/usr/local/bin" >> $GITHUB_PATH
-
-      - name: Start sccache server
-        run: |
-          sccache --start-server || true
-          sccache --show-stats || true
-
       - name: Install system dependencies
         run: |
           sudo apt-get update
@@ -76,7 +61,6 @@ jobs:
         run: |
           cargo build --release -p botui --features embed-ui -j 8 2>&1 | tee /tmp/build.log
           ls -lh target/release/botui
-          sccache --show-stats || true
 
       - name: Save build log
         if: always()