feat: introduce React web frontend and migrate home + 404 pages (#8276)

Dockerfile.next

@@ -1,3 +1,12 @@
+FROM --platform=$BUILDPLATFORM node:24-alpine AS webbuilder
+RUN corepack enable
+WORKDIR /src
+COPY package.json pnpm-lock.yaml pnpm-workspace.yaml ./
+COPY web ./web
+COPY conf/locale ./conf/locale
+RUN pnpm install --frozen-lockfile
+RUN pnpm --filter gogs-web run build
+
 FROM golang:1.26-alpine3.23 AS binarybuilder
 RUN apk --no-cache --no-progress add --virtual \
   build-deps \
@@ -7,9 +16,10 @@ RUN apk --no-cache --no-progress add --virtual \
 
 WORKDIR /gogs.io/gogs
 COPY . .
+COPY --from=webbuilder /src/public/dist ./public/dist
 
 RUN ./docker/build/install-task.sh
-RUN TAGS="cert pam" task build
+RUN TAGS="pam prod" task build
 
 FROM alpine:3.23