feat: add jenkinsfile for CI (idk if it gud)

Jenkinsfile

@@ -0,0 +1,93 @@
+pipeline {
+    agent any
+
+    triggers {
+        // Trigger build on SCM changes (pushes)
+        scm('H/5 * * * *')  // Poll SCM every 5 minutes
+    }
+
+    environment {
+        // Rust environment variables
+        CARGO_HOME = '/root/.cargo'
+        RUSTUP_HOME = '/root/.rustup'
+        PATH = "${env.PATH}:/root/.cargo/bin"
+        // Optional: Set specific Rust version
+        // RUST_VERSION = '1.75.0'
+    }
+
+    stages {
+        stage('Checkout') {
+            steps {
+                // Checkout source code
+                checkout scm
+            }
+        }
+
+        stage('Setup Rust') {
+            steps {
+                script {
+                    // Check if rustup is installed, install if not
+                    def rustupExists = sh(script: 'test -f /root/.cargo/bin/rustup', returnStatus: true) == 0
+                    if (!rustupExists) {
+                        echo 'Installing rustup...'
+                        sh 'curl --proto "=https" --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y'
+                    }
+
+                    // Update rustup and install stable toolchain
+                    sh '/root/.cargo/bin/rustup update stable'
+                    sh '/root/.cargo/bin/rustup default stable'
+
+                    // Install additional components
+                    sh '/root/.cargo/bin/rustup component add clippy rustfmt'
+                }
+            }
+        }
+
+        stage('Rust Info') {
+            steps {
+                // Display Rust and Cargo versions
+                sh '/root/.cargo/bin/rustc --version'
+                sh '/root/.cargo/bin/cargo --version'
+            }
+        }
+
+        stage('Cache Dependencies') {
+            steps {
+                // Update Cargo index and cache dependencies
+                sh '/root/.cargo/bin/cargo fetch'
+            }
+        }
+
+        stage('Lint') {
+            steps {
+                // Run clippy for linting
+                sh '/root/.cargo/bin/cargo clippy -- -D warnings'
+            }
+        }
+
+        stage('Format Check') {
+            steps {
+                // Check code formatting
+                sh '/root/.cargo/bin/cargo fmt -- --check'
+            }
+        }
+
+        stage('Build') {
+            steps {
+                // Build the project
+                sh '/root/.cargo/bin/cargo build --release'
+            }
+        }
+
+        stage('Test') {
+            steps {
+                // Run tests
+                sh '/root/.cargo/bin/cargo test --release'
+            }
+        }
+
+        stage('Security Audit') {
+            steps {
+                // Optional: Run security audit
+                script {
+                    t