feat: K8S智能诊断平台 - 一键诊断+AI分析+Web仪表盘

- 后端: FastAPI + kubectl 9大检查项(Pod/Node/Event/Deploy/Service/PVC/资源/网络)
- AI Agent: OpenAI兼容接口自动分析故障根因+多轮追问对话
- 前端: Vue3 + Element Plus 仪表盘, 健康评分, 问题列表, 资源监控
- 一键启动脚本 start.sh

start.sh

@@ -0,0 +1,40 @@
+#!/bin/bash
+# K8S 智能诊断平台 - 一键启动脚本
+set -e
+
+cd "$(dirname "$0")"
+
+PORT=${PORT:-8900}
+
+echo "========================================="
+echo "  K8S 智能诊断平台"
+echo "  端口: $PORT"
+echo "========================================="
+
+# 检查 kubectl
+KUBECTL=$(which kubectl 2>/dev/null || echo "$HOME/bin/kubectl")
+if [ ! -x "$KUBECTL" ]; then
+    echo "⚠️  未找到 kubectl，请先安装"
+    exit 1
+fi
+echo "✅ kubectl: $KUBECTL"
+
+# 检查 kubeconfig
+if [ -f "$HOME/.kube/config" ]; then
+    echo "✅ kubeconfig: ~/.kube/config"
+else
+    echo "⚠️  未找到 ~/.kube/config，诊断将返回空结果"
+    echo "   请将 kubeconfig 放到 ~/.kube/config"
+fi
+
+# 检查前端构建
+if [ ! -d "frontend/dist" ]; then
+    echo "📦 构建前端..."
+    cd frontend && npx vite build && cd ..
+fi
+
+echo ""
+echo "🚀 启动服务: http://localhost:$PORT"
+echo ""
+
+PORT=$PORT python3 -m uvicorn backend.main:app --host 0.0.0.0 --port "$PORT"