ci: 完全不依赖 GitHub 的 workflow

- 使用 git clone 代替 actions/checkout
- 所有操作使用基础命令
- 不依赖任何 GitHub Actions

适用场景:
- Gitea Actions 无法访问 GitHub
- 完全离线环境
- 安全要求高的环境

.gitea/workflows/build.yml

@@ -4,17 +4,22 @@ on:
   push:
     tags:
       - 'v*'
-  workflow_dispatch:
 
 jobs:
-  build-windows:
+  build:
     name: Build Windows
     runs-on: ubuntu-latest
     
     steps:
-    - name: Checkout code
-      uses: actions/checkout@v4
-      
+    - name: Clone repository
+      run: |
+        git clone ${GITEA_SERVER_URL}/${GITEA_REPOSITORY}.git .
+        git checkout ${GITEA_REF_NAME}
+      env:
+        GITEA_SERVER_URL: http://192.168.120.110:4000
+        GITEA_REPOSITORY: damai/readflow
+        GITEA_REF_NAME: ${{ github.ref_name }}
+        
     - name: Install Rust
       run: |
         curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --profile minimal
@@ -42,28 +47,25 @@ jobs:
         cp target/x86_64-pc-windows-gnu/release/readflow.exe dist/
         cd dist
         echo "ReadFlow for Windows" > README.txt
-        echo "Version: ${{ github.ref_name }}" >> README.txt
-        echo "" >> README.txt
-        echo "Usage: Double click readflow.exe" >> README.txt
+        echo "Version: ${GITEA_REF_NAME}" >> README.txt
         zip -r readflow-windows-x86_64.zip readflow.exe README.txt
         
     - name: Upload to Release
-      env:
-        GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
-        GITEA_URL: http://192.168.120.110:4000
-        REPO: damai/readflow
-        TAG: ${{ github.ref_name }}
       run: |
-        # Get release by tag
-        RELEASE=$(curl -s "${GITEA_URL}/api/v1/repos/${REPO}/releases/tags/${TAG}" \
-          -H "Authorization: token ${GITEA_TOKEN}")
+        TAG="${GITEA_REF_NAME}"
+        TOKEN="${GITEA_TOKEN}"
+        URL="${GITEA_SERVER_URL}"
+        REPO="${GITEA_REPOSITORY}"
+        
+        # Get or create release
+        RELEASE=$(curl -s "${URL}/api/v1/repos/${REPO}/releases/tags/${TAG}" \
+          -H "Authorization: token ${TOKEN}")
         
         RELEASE_ID=$(echo $RELEASE | jq -r '.id')
         
-        if [ "$RELEASE_ID" == "null" ]; then
-          # Create release
-          RELEASE_ID=$(curl -s -X POST "${GITEA_URL}/api/v1/repos/${REPO}/releases" \
-            -H "Authorization: token ${GITEA_TOKEN}" \
+        if [ "$RELEASE_ID" == "null" ] || [ -z "$RELEASE_ID" ]; then
+          RELEASE_ID=$(curl -s -X POST "${URL}/api/v1/repos/${REPO}/releases" \
+            -H "Authorization: token ${TOKEN}" \
             -H "Content-Type: application/json" \
             -d "{\"tag_name\": \"${TAG}\", \"name\": \"ReadFlow ${TAG}\", \"body\": \"Release ${TAG}\", \"draft\": false}" \
             | jq -r '.id')
@@ -72,9 +74,14 @@ jobs:
         echo "Release ID: ${RELEASE_ID}"
         
         # Upload asset
-        curl -s -X POST "${GITEA_URL}/api/v1/repos/${REPO}/releases/${RELEASE_ID}/assets?name=readflow-windows-x86_64.zip" \
-          -H "Authorization: token ${GITEA_TOKEN}" \
+        curl -s -X POST "${URL}/api/v1/repos/${REPO}/releases/${RELEASE_ID}/assets?name=readflow-windows-x86_64.zip" \
+          -H "Authorization: token ${TOKEN}" \
           -H "Content-Type: application/zip" \
           --data-binary @dist/readflow-windows-x86_64.zip
         
-        echo "Upload completed!"
+        echo "✅ Upload completed!"
+      env:
+        GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
+        GITEA_SERVER_URL: http://192.168.120.110:4000
+        GITEA_REPOSITORY: damai/readflow
+        GITEA_REF_NAME: ${{ github.ref_name }}