diff --git a/.gitea/scripts/prepare-workspace.sh b/.gitea/scripts/prepare-workspace.sh
deleted file mode 100644
index 929651d..0000000
--- a/.gitea/scripts/prepare-workspace.sh
+++ /dev/null
@@ -1,116 +0,0 @@
-#!/usr/bin/env bash
-set -euo pipefail
-
-# Reusable bootstrap for Gitea workflows:
-# 1) checkout target commit
-# 2) ensure Node version (install from domestic mirror if missing/mismatch)
-# 3) ensure Yarn is available (and optionally pin version)
-# 通用准备脚本：用于 CI/Deploy 前的代码检出、Node 准备、Yarn 准备。
-
-REPO_URL="${1:?repo url required}"
-GIT_SHA="${2:?git sha required}"
-# 优先使用精确版本 NODE_VERSION；未指定时按 NODE_MAJOR 自动解析最新小版本。
-NODE_MAJOR="${NODE_MAJOR:-22}"
-NODE_VERSION="${NODE_VERSION:-}"
-YARN_VERSION="${YARN_VERSION:-stable}"
-# 默认使用国内镜像，减少下载失败概率。
-NODEJS_MIRROR="${NODEJS_MIRROR:-https://npmmirror.com/mirrors/node}"
-NPM_REGISTRY="${NPM_REGISTRY:-https://registry.npmmirror.com}"
-# 安装到用户目录，避免依赖 /opt 写权限。
-NODE_INSTALL_ROOT="${NODE_INSTALL_ROOT:-$HOME/.local/node-ci}"
-
-resolve_node_version() {
-  # 指定了精确版本时，直接使用。
-  if [ -n "${NODE_VERSION}" ]; then
-    echo "${NODE_VERSION#v}"
-    return
-  fi
-
-  # 未指定精确版本时，从镜像索引中选定 NODE_MAJOR 对应的最新版本。
-  local resolved
-  resolved="$(curl -fsSL "${NODEJS_MIRROR}/index.tab" | awk -F'\t' -v major="${NODE_MAJOR}" '
-    NR > 1 && $1 ~ ("^v" major "\\.") { print substr($1, 2); exit }
-  ')"
-  if [ -z "${resolved}" ]; then
-    echo "failed to resolve latest Node ${NODE_MAJOR}.x from ${NODEJS_MIRROR}"
-    exit 1
-  fi
-  echo "${resolved}"
-}
-
-detect_arch() {
-  # 仅支持常见 Linux 架构；其他架构显式失败，避免下载错误包。
-  case "$(uname -m)" in
-    x86_64) echo "x64" ;;
-    aarch64 | arm64) echo "arm64" ;;
-    *)
-      echo "unsupported architecture: $(uname -m)"
-      exit 1
-      ;;
-  esac
-}
-
-install_node() {
-  local target_version="$1"
-  local arch name url tarball install_dir bindir
-  arch="$(detect_arch)"
-  name="node-v${target_version}-linux-${arch}"
-  url="${NODEJS_MIRROR}/v${target_version}/${name}.tar.xz"
-  tarball="/tmp/${name}.tar.xz"
-  install_dir="${NODE_INSTALL_ROOT}/${name}"
-  bindir="${install_dir}/bin"
-
-  if [ ! -x "${bindir}/node" ]; then
-    # 下载并解压 Node 二进制包到本地缓存目录。
-    mkdir -p "${NODE_INSTALL_ROOT}"
-    curl -fsSL "${url}" -o "${tarball}"
-    tar -xJf "${tarball}" -C "${NODE_INSTALL_ROOT}"
-    rm -f "${tarball}"
-  fi
-
-  export PATH="${bindir}:${PATH}"
-}
-
-ensure_node() {
-  local target_version node_version
-  target_version="$(resolve_node_version)"
-
-  # 版本完全一致则直接复用，避免重复下载。
-  if command -v node >/dev/null 2>&1; then
-    node_version="$(node -v | sed 's/^v//')"
-    if [ "${node_version}" = "${target_version}" ]; then
-      return
-    fi
-  fi
-
-  install_node "${target_version}"
-
-  node_version="$(node -v | sed 's/^v//')"
-  if [ "${node_version}" != "${target_version}" ]; then
-    echo "failed to switch to Node ${target_version}, current=${node_version}"
-    exit 1
-  fi
-}
-
-# 首次执行时检出目标提交；已存在仓库则更新并强制切到指定 SHA。
-if [ ! -d .git ]; then
-  git clone "${REPO_URL}" .
-fi
-
-git fetch --all --tags --prune
-git checkout -f "${GIT_SHA}"
-
-ensure_node
-
-# Use domestic npm mirror for package-manager metadata/download.
-npm config set registry "${NPM_REGISTRY}" >/dev/null 2>&1 || true
-
-if ! command -v yarn >/dev/null 2>&1; then
-  # 通过 corepack 激活指定 Yarn 版本。
-  corepack enable
-  export COREPACK_NPM_REGISTRY="${NPM_REGISTRY}"
-  corepack prepare "yarn@${YARN_VERSION}" --activate
-fi
-
-echo "Node: $(node -v)"
-echo "Yarn: $(yarn -v)"
diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index 46e687a..bdbd747 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -6,31 +6,15 @@ on:
   pull_request:
 
 jobs:
-  # workflow_call 调用示例（先保留注释，不启用）：
-  # ci:
-  #   uses: ./.gitea/workflows/reusable-ci.yml
-  #   with:
-  #     node_major: "22"
-  #     yarn_version: "stable"
-  #     run_lint: true
-  #     run_tsc: true
-
   ci:
-    runs-on: ubuntu-latest
-    env:
-      NODE_MAJOR: "22"
-      YARN_VERSION: "stable"
-    steps:
-      - name: Prepare workspace (checkout + node/yarn)
-        run: |
-          set -euo pipefail
-          chmod +x .gitea/scripts/prepare-workspace.sh
-          ./.gitea/scripts/prepare-workspace.sh \
-            "${{ github.server_url }}/${{ github.repository }}.git" \
-            "${{ github.sha }}"
-      - name: Install dependencies
-        run: yarn install --frozen-lockfile
-      - name: Lint
-        run: yarn lint
-      - name: TypeScript check
-        run: yarn tsc --noEmit
+    uses: platform/workflow/.gitea/workflows/reusable-prepare-workspace.yml@1.1
+    with:
+      repo_url: "${{ github.server_url }}/${{ github.repository }}.git"
+      git_sha: "${{ github.sha }}"
+      node_major: "22"
+      yarn_version: "stable"
+      run_commands: |
+        set -euo pipefail
+        yarn install --frozen-lockfile
+        yarn lint
+        yarn tsc --noEmit
diff --git a/.gitea/workflows/deploy.yml b/.gitea/workflows/deploy.yml
index 6f6a589..762b818 100644
--- a/.gitea/workflows/deploy.yml
+++ b/.gitea/workflows/deploy.yml
@@ -8,73 +8,57 @@ on:
 jobs:
   deploy:
     if: ${{ github.event_name == 'workflow_dispatch' || startsWith(github.ref, 'refs/tags/v') }}
-    runs-on: ubuntu-latest
-    env:
-      NODE_MAJOR: "22"
-      YARN_VERSION: "stable"
-      DEPLOY_HOST: ${{ vars.DEPLOY_HOST }}
-      DEPLOY_PORT: ${{ vars.DEPLOY_PORT }}
-      DEPLOY_USER: ${{ vars.DEPLOY_USER }}
-      DEPLOY_PATH: ${{ vars.DEPLOY_PATH }}
-      IMAGE_REPO: ${{ vars.IMAGE_REPO }}
-      REGISTRY: ${{ vars.REGISTRY }}
+    uses: platform/workflow/.gitea/workflows/reusable-prepare-workspace.yml@1.1
+    secrets: inherit
+    with:
+      repo_url: "${{ github.server_url }}/${{ github.repository }}.git"
+      git_sha: "${{ github.sha }}"
+      node_major: "22"
+      yarn_version: "stable"
+      run_commands: |
+        set -euo pipefail
 
-    steps:
-      - name: Prepare workspace (checkout + node/yarn)
-        run: |
-          set -euo pipefail
-          chmod +x .gitea/scripts/prepare-workspace.sh
-          ./.gitea/scripts/prepare-workspace.sh \
-            "${{ github.server_url }}/${{ github.repository }}.git" \
-            "${{ github.sha }}"
+        DEPLOY_HOST="${{ vars.DEPLOY_HOST }}"
+        DEPLOY_PORT="${{ vars.DEPLOY_PORT }}"
+        DEPLOY_USER="${{ vars.DEPLOY_USER }}"
+        DEPLOY_PATH="${{ vars.DEPLOY_PATH }}"
+        IMAGE_REPO="${{ vars.IMAGE_REPO }}"
+        REGISTRY="${{ vars.REGISTRY }}"
 
-      - name: Setup SSH
-        run: |
-          set -euo pipefail
-          mkdir -p ~/.ssh
-          echo "${{ secrets.SSH_PRIVATE_KEY }}" > ~/.ssh/id_rsa
-          chmod 600 ~/.ssh/id_rsa
-          ssh-keyscan -p "${DEPLOY_PORT:-22}" "${DEPLOY_HOST}" >> ~/.ssh/known_hosts
+        mkdir -p ~/.ssh
+        echo "${SSH_PRIVATE_KEY}" > ~/.ssh/id_rsa
+        chmod 600 ~/.ssh/id_rsa
+        ssh-keyscan -p "${DEPLOY_PORT:-22}" "${DEPLOY_HOST}" >> ~/.ssh/known_hosts
 
-      - name: Prepare image tag
-        run: |
-          set -euo pipefail
-          if [[ "${GITHUB_REF:-}" == refs/tags/* ]]; then
-            IMAGE_TAG="${GITHUB_REF_NAME}"
-          else
-            IMAGE_TAG="${GITHUB_SHA:0:12}"
-          fi
-          echo "IMAGE_TAG=${IMAGE_TAG}" >> "$GITHUB_ENV"
+        if [[ "${GITHUB_REF:-}" == refs/tags/* ]]; then
+          IMAGE_TAG="${GITHUB_REF_NAME}"
+        else
+          IMAGE_TAG="${GITHUB_SHA:0:12}"
+        fi
 
-      - name: Build and push image
-        run: |
-          set -euo pipefail
-          if [ -z "${REGISTRY}" ] || [ -z "${IMAGE_REPO}" ]; then
-            echo "REGISTRY and IMAGE_REPO vars are required"
-            exit 1
-          fi
+        if [ -z "${REGISTRY}" ] || [ -z "${IMAGE_REPO}" ]; then
+          echo "REGISTRY and IMAGE_REPO vars are required"
+          exit 1
+        fi
 
-          echo "${{ secrets.REGISTRY_PASSWORD }}" | docker login "${REGISTRY}" -u "${{ secrets.REGISTRY_USERNAME }}" --password-stdin
-          docker build -f deploy/docker/Dockerfile -t "${IMAGE_REPO}:${IMAGE_TAG}" .
-          docker push "${IMAGE_REPO}:${IMAGE_TAG}"
+        echo "${REGISTRY_PASSWORD}" | docker login "${REGISTRY}" -u "${REGISTRY_USERNAME}" --password-stdin
+        docker build -f deploy/docker/Dockerfile -t "${IMAGE_REPO}:${IMAGE_TAG}" .
+        docker push "${IMAGE_REPO}:${IMAGE_TAG}"
 
-      - name: Deploy
-        run: |
-          set -euo pipefail
-          ssh -p "${DEPLOY_PORT:-22}" "${DEPLOY_USER}@${DEPLOY_HOST}" <<EOF
-          set -euo pipefail
-          cd "${DEPLOY_PATH}"
+        ssh -p "${DEPLOY_PORT:-22}" "${DEPLOY_USER}@${DEPLOY_HOST}" <<EOF
+        set -euo pipefail
+        cd "${DEPLOY_PATH}"
 
-          mkdir -p deploy/docker
-          cat > deploy/docker/.env <<EOT
-          ${{ vars.DEPLOY_DOCKER_ENV }}
-          IMAGE_REPO=${IMAGE_REPO}
-          IMAGE_TAG=${IMAGE_TAG}
-          EOT
+        mkdir -p deploy/docker
+        cat > deploy/docker/.env <<EOT
+        ${{ vars.DEPLOY_DOCKER_ENV }}
+        IMAGE_REPO=${IMAGE_REPO}
+        IMAGE_TAG=${IMAGE_TAG}
+        EOT
 
-          echo "${{ secrets.REGISTRY_PASSWORD }}" | docker login "${REGISTRY}" -u "${{ secrets.REGISTRY_USERNAME }}" --password-stdin
-          docker compose -f deploy/docker/docker-compose.yml --env-file deploy/docker/.env pull app
-          docker compose -f deploy/docker/docker-compose.yml --env-file deploy/docker/.env up -d app
-          docker compose -f deploy/docker/docker-compose.yml ps
-          curl -fsS "http://127.0.0.1:\${HOST_BIND_PORT:-3000}/api/docs" >/dev/null
-          EOF
+        echo "${REGISTRY_PASSWORD}" | docker login "${REGISTRY}" -u "${REGISTRY_USERNAME}" --password-stdin
+        docker compose -f deploy/docker/docker-compose.yml --env-file deploy/docker/.env pull app
+        docker compose -f deploy/docker/docker-compose.yml --env-file deploy/docker/.env up -d app
+        docker compose -f deploy/docker/docker-compose.yml ps
+        curl -fsS "http://127.0.0.1:\${HOST_BIND_PORT:-3000}/api/docs" >/dev/null
+        EOF
diff --git a/.gitea/workflows/reusable-ci.yml b/.gitea/workflows/reusable-ci.yml
deleted file mode 100644
index d20ca6a..0000000
--- a/.gitea/workflows/reusable-ci.yml
+++ /dev/null
@@ -1,51 +0,0 @@
-name: Reusable CI
-
-on:
-  workflow_call:
-    inputs:
-      node_major:
-        description: "Node 主版本（例如 22）"
-        required: false
-        type: string
-        default: "22"
-      yarn_version:
-        description: "Yarn 版本（例如 stable 或 1.22.22）"
-        required: false
-        type: string
-        default: "stable"
-      run_lint:
-        description: "是否执行 yarn lint"
-        required: false
-        type: boolean
-        default: true
-      run_tsc:
-        description: "是否执行 yarn tsc --noEmit"
-        required: false
-        type: boolean
-        default: true
-
-jobs:
-  ci:
-    runs-on: ubuntu-latest
-    env:
-      NODE_MAJOR: ${{ inputs.node_major }}
-      YARN_VERSION: ${{ inputs.yarn_version }}
-    steps:
-      - name: Prepare workspace (checkout + node/yarn)
-        run: |
-          set -euo pipefail
-          chmod +x .gitea/scripts/prepare-workspace.sh
-          ./.gitea/scripts/prepare-workspace.sh \
-            "${{ github.server_url }}/${{ github.repository }}.git" \
-            "${{ github.sha }}"
-
-      - name: Install dependencies
-        run: yarn install --frozen-lockfile
-
-      - name: Lint
-        if: ${{ inputs.run_lint }}
-        run: yarn lint
-
-      - name: TypeScript check
-        if: ${{ inputs.run_tsc }}
-        run: yarn tsc --noEmit
diff --git a/.gitea/workflows/reusable-prepare-workspace.yml b/.gitea/workflows/reusable-prepare-workspace.yml
new file mode 100644
index 0000000..4988696
--- /dev/null
+++ b/.gitea/workflows/reusable-prepare-workspace.yml
@@ -0,0 +1,177 @@
+name: Reusable Prepare Workspace
+
+on:
+  workflow_call:
+    inputs:
+      repo_url:
+        description: "Git 仓库地址"
+        required: true
+        type: string
+      git_sha:
+        description: "目标提交 SHA"
+        required: true
+        type: string
+      node_major:
+        description: "Node 主版本（例如 22）"
+        required: false
+        type: string
+        default: "22"
+      node_version:
+        description: "Node 精确版本（例如 22.12.0，优先于 node_major）"
+        required: false
+        type: string
+        default: ""
+      yarn_version:
+        description: "Yarn 版本（例如 stable 或 1.22.22）"
+        required: false
+        type: string
+        default: "stable"
+      nodejs_mirror:
+        description: "Node 二进制镜像地址"
+        required: false
+        type: string
+        default: "https://npmmirror.com/mirrors/node"
+      npm_registry:
+        description: "NPM 镜像地址"
+        required: false
+        type: string
+        default: "https://registry.npmmirror.com"
+      node_install_root:
+        description: "Node 安装缓存目录"
+        required: false
+        type: string
+        default: ""
+      run_commands:
+        description: "准备完成后执行的额外命令（多行 shell）"
+        required: false
+        type: string
+        default: ""
+    secrets:
+      SSH_PRIVATE_KEY:
+        required: false
+      REGISTRY_USERNAME:
+        required: false
+      REGISTRY_PASSWORD:
+        required: false
+
+jobs:
+  prepare:
+    runs-on: ubuntu-latest
+    env:
+      REPO_URL: ${{ inputs.repo_url }}
+      GIT_SHA: ${{ inputs.git_sha }}
+      NODE_MAJOR: ${{ inputs.node_major }}
+      NODE_VERSION: ${{ inputs.node_version }}
+      YARN_VERSION: ${{ inputs.yarn_version }}
+      NODEJS_MIRROR: ${{ inputs.nodejs_mirror }}
+      NPM_REGISTRY: ${{ inputs.npm_registry }}
+      NODE_INSTALL_ROOT: ${{ inputs.node_install_root }}
+      RUN_COMMANDS: ${{ inputs.run_commands }}
+    steps:
+      - name: Prepare workspace (checkout + node/yarn)
+        run: |
+          set -euo pipefail
+
+          resolve_node_version() {
+            if [ -n "${NODE_VERSION}" ]; then
+              echo "${NODE_VERSION#v}"
+              return
+            fi
+
+            local resolved
+            resolved="$(curl -fsSL "${NODEJS_MIRROR}/index.tab" | awk -F'\t' -v major="${NODE_MAJOR}" '
+              NR > 1 && $1 ~ ("^v" major "\\.") { print substr($1, 2); exit }
+            ')"
+            if [ -z "${resolved}" ]; then
+              echo "failed to resolve latest Node ${NODE_MAJOR}.x from ${NODEJS_MIRROR}"
+              exit 1
+            fi
+            echo "${resolved}"
+          }
+
+          if [ -z "${NODE_INSTALL_ROOT}" ]; then
+            NODE_INSTALL_ROOT="${HOME}/.local/node-ci"
+          fi
+
+          detect_arch() {
+            case "$(uname -m)" in
+              x86_64) echo "x64" ;;
+              aarch64 | arm64) echo "arm64" ;;
+              *)
+                echo "unsupported architecture: $(uname -m)"
+                exit 1
+                ;;
+            esac
+          }
+
+          install_node() {
+            local target_version="$1"
+            local arch name url tarball install_dir bindir
+            arch="$(detect_arch)"
+            name="node-v${target_version}-linux-${arch}"
+            url="${NODEJS_MIRROR}/v${target_version}/${name}.tar.xz"
+            tarball="/tmp/${name}.tar.xz"
+            install_dir="${NODE_INSTALL_ROOT}/${name}"
+            bindir="${install_dir}/bin"
+
+            if [ ! -x "${bindir}/node" ]; then
+              mkdir -p "${NODE_INSTALL_ROOT}"
+              curl -fsSL "${url}" -o "${tarball}"
+              tar -xJf "${tarball}" -C "${NODE_INSTALL_ROOT}"
+              rm -f "${tarball}"
+            fi
+
+            export PATH="${bindir}:${PATH}"
+          }
+
+          ensure_node() {
+            local target_version node_version
+            target_version="$(resolve_node_version)"
+
+            if command -v node >/dev/null 2>&1; then
+              node_version="$(node -v | sed 's/^v//')"
+              if [ "${node_version}" = "${target_version}" ]; then
+                return
+              fi
+            fi
+
+            install_node "${target_version}"
+
+            node_version="$(node -v | sed 's/^v//')"
+            if [ "${node_version}" != "${target_version}" ]; then
+              echo "failed to switch to Node ${target_version}, current=${node_version}"
+              exit 1
+            fi
+          }
+
+          if [ ! -d .git ]; then
+            git clone "${REPO_URL}" .
+          fi
+
+          git fetch --all --tags --prune
+          git checkout -f "${GIT_SHA}"
+
+          ensure_node
+
+          npm config set registry "${NPM_REGISTRY}" >/dev/null 2>&1 || true
+
+          if ! command -v yarn >/dev/null 2>&1; then
+            corepack enable
+            export COREPACK_NPM_REGISTRY="${NPM_REGISTRY}"
+            corepack prepare "yarn@${YARN_VERSION}" --activate
+          fi
+
+          echo "Node: $(node -v)"
+          echo "Yarn: $(yarn -v)"
+
+      - name: Run extra commands
+        if: ${{ inputs.run_commands != '' }}
+        env:
+          SSH_PRIVATE_KEY: ${{ secrets.SSH_PRIVATE_KEY }}
+          REGISTRY_USERNAME: ${{ secrets.REGISTRY_USERNAME }}
+          REGISTRY_PASSWORD: ${{ secrets.REGISTRY_PASSWORD }}
+        run: |
+          set -euo pipefail
+          printf '%s\n' "${RUN_COMMANDS}" > /tmp/reusable-prepare-run.sh
+          chmod +x /tmp/reusable-prepare-run.sh
+          /tmp/reusable-prepare-run.sh