fix: disable buildkit to use host Docker daemon and mirror cache

Buildkit runs in isolated network and can't access mirrors.
Legacy builder uses host daemon directly with registry-mirrors.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.gitea/workflows/deploy.yaml

@@ -37,7 +37,7 @@ jobs:
         id: build-api
         run: |
           set -o pipefail
-          docker build \
+          DOCKER_BUILDKIT=0 docker build \
             --tag ${{ secrets.CR_SERVER }}/${{ env.CR_ORG }}/log-center-api:latest \
             -f ./Dockerfile \
             . 2>&1 | tee /tmp/build-api.log
@@ -48,7 +48,7 @@ jobs:
         id: build-web
         run: |
           set -o pipefail
-          docker build \
+          DOCKER_BUILDKIT=0 docker build \
             --build-arg VITE_API_BASE_URL=https://${{ env.DOMAIN_API }} \
             --tag ${{ secrets.CR_SERVER }}/${{ env.CR_ORG }}/log-center-web:latest \
             -f ./web/Dockerfile \
@@ -60,7 +60,7 @@ jobs:
         id: build-monitor
         run: |
           set -o pipefail
-          docker build \
+          DOCKER_BUILDKIT=0 docker build \
             --tag ${{ secrets.CR_SERVER }}/${{ env.CR_ORG }}/k8s-pod-monitor:latest \
             -f ./k8s-monitor/Dockerfile \
             ./k8s-monitor 2>&1 | tee /tmp/build-monitor.log

Dockerfile

@@ -1,5 +1,5 @@
 # Build stage - Python FastAPI application
-FROM hub.rat.dev/library/python:3.12-slim AS build-stage
+FROM python:3.12-slim AS build-stage
 
 WORKDIR /app
 
@@ -8,7 +8,7 @@ COPY requirements.txt ./
 RUN pip install --no-cache-dir -i https://mirrors.aliyun.com/pypi/simple/ -r requirements.txt
 
 # Production stage
-FROM hub.rat.dev/library/python:3.12-slim AS production-stage
+FROM python:3.12-slim AS production-stage
 
 WORKDIR /app
 

k8s-monitor/Dockerfile

@@ -1,4 +1,4 @@
-FROM hub.rat.dev/library/python:3.12-slim
+FROM python:3.12-slim
 
 WORKDIR /app
 

web/Dockerfile

@@ -1,5 +1,5 @@
 # Build stage
-FROM hub.rat.dev/library/node:20-alpine AS build-stage
+FROM node:20-alpine AS build-stage
 
 WORKDIR /app
 
@@ -16,7 +16,7 @@ ENV VITE_API_BASE_URL=$VITE_API_BASE_URL
 RUN npm run build
 
 # Production stage
-FROM hub.rat.dev/library/nginx:stable-alpine AS production-stage
+FROM nginx:stable-alpine AS production-stage
 
 COPY --from=build-stage /app/dist /usr/share/nginx/html