diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..48b2b7c
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,19 @@
+# 前后端构建产物与运行时数据（web/ 由 Dockerfile web-builder 阶段生成，不入构建上下文）
+app/build/
+app/.dart_tool/
+server/data/
+server/workspace/
+server/web/
+server/slogan-agent
+server/main
+*.db
+
+# 渲染器依赖：由 Dockerfile renderer 阶段安装，宿主 node_modules 平台不匹配，排除以防覆盖
+server/scripts/avatar-render/node_modules/
+
+# VCS 与 IDE
+.git
+.gitignore
+.idea/
+.vscode/
+.DS_Store
diff --git a/.gitea/workflows/dev-deploy.yaml b/.gitea/workflows/dev-deploy.yaml
index 9e6b990..26b5227 100644
--- a/.gitea/workflows/dev-deploy.yaml
+++ b/.gitea/workflows/dev-deploy.yaml
@@ -24,7 +24,8 @@ jobs:
       - name: 构建并推送镜像
         run: |
           TAG=dev-${GITHUB_SHA::8}
-          docker build -t 127.0.0.1:5000/ai-agent:${TAG} ./server
+          # context 为仓库根：镜像内含 Flutter web 前端（Dockerfile web-builder stage）
+          docker build -t 127.0.0.1:5000/ai-agent:${TAG} -f server/Dockerfile .
           docker push 127.0.0.1:5000/ai-agent:${TAG}
 
       - name: 部署到 dev k3s
diff --git a/deploy/k8s/ai-agent.yaml b/deploy/k8s/ai-agent.yaml
deleted file mode 100644
index 031542d..0000000
--- a/deploy/k8s/ai-agent.yaml
+++ /dev/null
@@ -1,46 +0,0 @@
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: ai-agent
-  namespace: dev
-spec:
-  replicas: 1
-  selector:
-    matchLabels:
-      app: ai-agent
-  template:
-    metadata:
-      labels:
-        app: ai-agent
-    spec:
-      containers:
-        - name: ai-agent
-          image: 127.0.0.1:5000/ai-agent:dev-latest
-          imagePullPolicy: IfNotPresent
-          ports:
-            - containerPort: 3005
-          env:
-            - name: TZ
-              value: Asia/Shanghai
-          readinessProbe:
-            tcpSocket:
-              port: 3005
-            initialDelaySeconds: 10
-            periodSeconds: 10
-          livenessProbe:
-            tcpSocket:
-              port: 3005
-            initialDelaySeconds: 30
-            periodSeconds: 15
----
-apiVersion: v1
-kind: Service
-metadata:
-  name: ai-agent
-  namespace: dev
-spec:
-  selector:
-    app: ai-agent
-  ports:
-    - port: 3005
-      targetPort: 3005