feat: add detailed --version output with build-time version injection

.gitea/workflows/build.yml

@@ -24,6 +24,12 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
+      - name: Set version
+        run: |
+          VERSION="${{ github.event.release.tag_name }}"
+          VERSION="${VERSION#v}"
+          echo "CCSM_VERSION=$VERSION" >> "$GITHUB_ENV"
+
       - name: Install Rust
         run: |
           curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable