Add CI pipeline script

Jenkinsfile

@@ -0,0 +1,25 @@
+pipeline {
+  agent {
+    docker {
+      image 'rust:trixie'
+      args '-v /var/run/docker.sock:/var/run/docker.sock -v /home/opt/jenkins/cargo_registry:/usr/local/cargo/registry -v /home/opt/jenkins/cargo_git:/usr/local/cargo/git -v /home/opt/jenkins/cargo_target:/workspace/target'
+    }
+  }
+  environment {
+    CARGO_HOME = '/usr/local/cargo'
+    CARGO_TARGET_DIR = '/workspace/target'
+  }
+  stages {
+    stage('Checkout') { steps { checkout scm } }
+    stage('Fmt') { steps { sh 'rustup component add rustfmt || true; cargo fmt --all -- --check' } }
+    stage('Clippy') { steps { sh 'rustup component add clippy || true; cargo clippy --all-targets --all-features -- -D warnings' } }
+    stage('Build') { steps { sh 'cargo build --locked --workspace' } }
+    stage('Test') { steps { sh 'cargo test --locked --workspace --color=always' } }
+    stage('Release') { steps { sh 'cargo build --release --locked' } }
+  }
+  post {
+    always {
+      archiveArtifacts artifacts: 'target/release/**', allowEmptyArchive: true
+    }
+  }
+}