接入Gitea Actions蓝绿部署：本地源码构建替代release下载，接入租户注册表迁移

- 新增docker/tinode/Dockerfile.build：从本仓库源码编译server/tinode-db/
  apply_hotgo_tenant_db，替代原Dockerfile下载GitHub release的方式(否则
  workbench/组织架构/会议等改造代码永远不会真正跑起来)
- config.template补上连接池设置(max_open_conns等，此前im_server踩过注册卡死
  的坑)，并启用tenant_db_routing+tenant_registry_db=hotgo，对应本仓库自带
  tinode.conf里的默认约定，单租户场景下会透明落回同一个tinode库
- entrypoint.sh在init-db之后追加执行apply-hotgo-tenant-db，幂等地建好/
  升级hotgo租户注册表及tinode库里的workbench/组织架构/会议/日报/信箱等新表
- 新增.gitea/workflows/deploy.yml，复用服务器上已有的蓝绿部署脚本

.gitea/workflows/deploy.yml

@@ -0,0 +1,35 @@
+name: Deploy Backend (Blue-Green)
+
+on:
+  workflow_dispatch:
+    inputs:
+      image_tag:
+        description: '镜像tag，留空则使用commit短哈希'
+        required: false
+
+jobs:
+  deploy:
+    runs-on: deploy-host
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: 确定镜像tag
+        id: vars
+        run: |
+          TAG="${{ github.event.inputs.image_tag }}"
+          [ -z "$TAG" ] && TAG=$(git rev-parse --short HEAD)
+          echo "tag=$TAG" >> "$GITHUB_OUTPUT"
+
+      - name: 构建镜像(从本仓库源码编译，非下载官方release)
+        run: docker build -t im-server:${{ steps.vars.outputs.tag }} -f docker/tinode/Dockerfile.build .
+
+      - name: 蓝绿部署
+        env:
+          MYSQL_DSN: ${{ secrets.MYSQL_DSN }}
+          REDIS_ADDR: ${{ secrets.REDIS_ADDR }}
+          REDIS_PASSWORD: ${{ secrets.REDIS_PASSWORD }}
+          API_KEY_SALT: ${{ secrets.API_KEY_SALT }}
+          AUTH_TOKEN_KEY: ${{ secrets.AUTH_TOKEN_KEY }}
+          UID_ENCRYPTION_KEY: ${{ secrets.UID_ENCRYPTION_KEY }}
+        run: |
+          IMAGE=im-server:${{ steps.vars.outputs.tag }} /opt/apps/im-server/deploy.sh

docker/tinode/Dockerfile.build

@@ -0,0 +1,83 @@
+# Builds the Tinode server + tinode-db + tenant-db-migration tools from THIS
+# repo's local source, instead of downloading a pre-built release from GitHub
+# (the upstream docker/tinode/Dockerfile does that, so it never picks up the
+# tenant/workbench/etc. customizations that live only in this repo's source).
+
+# ---- Stage 1: compile from local source ----
+FROM golang:1.26-alpine AS build
+
+RUN apk add --no-cache git
+WORKDIR /src
+COPY go.mod go.sum ./
+RUN go mod download
+COPY . .
+RUN CGO_ENABLED=0 go build -tags mysql -o /out/tinode ./server
+RUN CGO_ENABLED=0 go build -tags mysql -o /out/init-db ./tinode-db
+# scripts/apply_hotgo_tenant_db.go is `//go:build ignore`-tagged (a standalone
+# migration script, not part of any package) - build it by exact file path.
+RUN CGO_ENABLED=0 go build -o /out/apply-hotgo-tenant-db ./scripts/apply_hotgo_tenant_db.go
+
+# ---- Stage 2: runtime image ----
+FROM alpine:3.22
+
+LABEL maintainer="118im"
+LABEL name="ImServer"
+
+# Runtime options (same names/semantics as upstream docker/tinode/Dockerfile).
+ENV WAIT_FOR=
+ENV RESET_DB=false
+ENV UPGRADE_DB=false
+ENV NO_DB_INIT=false
+# Empty by default: do not load Tinode's canned demo users into a real deployment.
+# Override explicitly if sample data is ever wanted.
+ENV SAMPLE_DATA=
+ENV DEFAULT_COUNTRY_CODE=US
+
+# DB connection is provided at deploy time via secret-backed env var. No default value.
+ENV MYSQL_DSN=
+ENV STORE_USE_ADAPTER=mysql
+
+# Tenant registry lives in the hotgo database (shared with im_manager); tenant
+# DB routing resolves to the same tinode DB for the seeded "default" tenant.
+ENV TENANT_REGISTRY_DB=hotgo
+
+ENV MEDIA_HANDLER=fs
+ENV FS_CORS_ORIGINS='["*"]'
+ENV AWS_CORS_ORIGINS='["*"]'
+ENV SMTP_HOST_URL='http://localhost:6060'
+ENV TLS_ENABLED=false
+ENV FCM_PUSH_ENABLED=false
+ENV FCM_INCLUDE_ANDROID_NOTIFICATION=true
+ENV TNPG_PUSH_ENABLED=false
+ENV WEBRTC_ENABLED=false
+ENV SERVER_STATUS_PATH=''
+ENV ACC_GC_ENABLED=false
+ENV PLUGIN_PYTHON_CHAT_BOT_ENABLED=false
+
+# Secrets: intentionally NO default values. Must be injected at deploy time.
+# An empty/missing value fails loudly at startup rather than silently falling
+# back to Tinode's publicly-known demo keys.
+ENV API_KEY_SALT=
+ENV AUTH_TOKEN_KEY=
+ENV UID_ENCRYPTION_KEY=
+
+RUN apk add --no-cache ca-certificates bash grep
+
+WORKDIR /opt/tinode
+
+COPY docker/tinode/config.template .
+COPY docker/tinode/entrypoint.sh .
+COPY tinode-db/credentials.sh .
+COPY --from=build /out/tinode .
+COPY --from=build /out/init-db .
+COPY --from=build /out/apply-hotgo-tenant-db .
+
+RUN mkdir -p /botdata static \
+    && chmod +x entrypoint.sh credentials.sh tinode init-db apply-hotgo-tenant-db
+
+HEALTHCHECK --interval=1m --timeout=3s --start-period=30s \
+  CMD nc -z localhost 6060 || exit 1
+
+ENTRYPOINT ["./entrypoint.sh"]
+
+EXPOSE 6060 16060

docker/tinode/config.template

@@ -75,7 +75,13 @@
 		"adapters": {
 			"mysql": {
 				"database": "tinode",
-				"dsn": "$MYSQL_DSN"
+				"dsn": "$MYSQL_DSN",
+				"max_open_conns": 64,
+				"max_idle_conns": 64,
+				"conn_max_lifetime": 60,
+				"sql_timeout": 10,
+				"tenant_registry_db": "$TENANT_REGISTRY_DB",
+				"tenant_db_routing": true
 			},
 			"postgres": {
 				"database": "tinode",

docker/tinode/entrypoint.sh

@@ -127,6 +127,15 @@ if [ $? -ne 0 ]; then
 	exit 1
 fi
 
+# Create/upgrade the hotgo tenant registry and the workbench/org/meetings/
+# reports/mailbox/etc. tables that init-db above does not manage. Idempotent
+# (IF NOT EXISTS / ON DUPLICATE KEY UPDATE throughout), safe to run every start.
+IM_MYSQL_DSN="${MYSQL_DSN}" ./apply-hotgo-tenant-db
+if [ $? -ne 0 ]; then
+	echo "./apply-hotgo-tenant-db failed. Quitting."
+	exit 1
+fi
+
 # If sample data was provided, try to find Tino password.
 if [ ! -z "$SAMPLE_DATA" ] ; then
 	grep "usr;tino;" $init_stdout > /botdata/tino-password