ci: remove Jenkinsfile to test branch exclusion

Jenkinsfile

@@ -1,37 +0,0 @@
-properties([
-  disableConcurrentBuilds(),
-  buildDiscarder(logRotator(daysToKeepStr: '60', numToKeepStr: '60', artifactDaysToKeepStr: '15', artifactNumToKeepStr: '15'))
-])
-
-timeout(time: 60, unit: 'SECONDS') {
-  node {
-    try {
-      stage('检出与变更信息') {
-        checkout scm
-        echo "BRANCH_NAME=${env.BRANCH_NAME ?: ''}"
-        echo "CHANGE_ID=${env.CHANGE_ID ?: ''}"
-        echo "CHANGE_TARGET=${env.CHANGE_TARGET ?: ''}"
-        def scenario = readFile('ci/scenario.txt').trim()
-        if (!(scenario in ['success', 'unstable', 'failure'])) {
-          error("Unsupported demo scenario: ${scenario}")
-        }
-        env.SCENARIO = scenario
-        env.RUN_SECONDS = '1'
-        env.LOG_LINES = '25'
-        env.TARGET_ENV = 'sg'
-        env.RELEASE_VERSION = readFile('VERSION').trim()
-        def expected = [success: 'SUCCESS', unstable: 'UNSTABLE', failure: 'FAILURE'][scenario]
-        currentBuild.description = '[演示数据] synthetic=true expected=' + expected
-      }
-      stage('构建与报告') {
-        int status = sh(returnStatus: true, script: 'sh ci/demo-build.sh')
-        junit 'reports/*.xml'
-        if (status != 0) error("Demo build exited with status ${status}")
-      }
-    } finally {
-      stage('归档') {
-        archiveArtifacts artifacts: 'artifacts/*', allowEmptyArchive: true
-      }
-    }
-  }
-}

ci/daily-history.json

@@ -1 +0,0 @@
-{"date":"2026-10-13","scenario":"success","expected_result":"SUCCESS","demo":true}

ci/scenario.txt

@@ -1 +1 @@
-success
+failure