优化 Debian 包管理，简化发行版配置

- CI：简化 Debian 包发布流程，统一使用 stable 发行版
- 移除 bookworm 和 trixie 多发行版支持，简化维护
- postinst：优化安装完成提示，提供清晰的配置和启动步骤
- postrm/prerm：改进卸载和升级前的清理逻辑
- README：更新安装说明，使用 stable 仓库
- install.deb.sh：同步更新仓库配置

.gitea/workflows/ci.yaml

@@ -134,29 +134,19 @@ jobs:
             }
           done
 
-          # 上传 Debian 包到 Debian Package Registry (支持多个发行版)
+          # 上传 Debian 包到 Debian Package Registry (通用稳定版)
           echo ""
           echo "📦 上传 Debian 包到 Debian Package Registry..."
           for file in *.deb; do
             [ ! -f "$file" ] && continue
 
-            # 上传到 bookworm (Debian 12)
-            echo "  ⬆️  $file → bookworm"
+            # 上传到 stable (通用稳定版)
+            echo "  ⬆️  $file → stable"
             curl -fsSL -X PUT \
               -H "Authorization: token ${TOKEN}" \
               --upload-file "$file" \
-              "https://${REGISTRY}/api/packages/${OWNER}/debian/pool/bookworm/main/upload" || {
-              echo "❌ Debian 包上传失败: $file (bookworm)"
-              exit 1
-            }
-
-            # 上传到 trixie (Debian 13)
-            echo "  ⬆️  $file → trixie"
-            curl -fsSL -X PUT \
-              -H "Authorization: token ${TOKEN}" \
-              --upload-file "$file" \
-              "https://${REGISTRY}/api/packages/${OWNER}/debian/pool/trixie/main/upload" || {
-              echo "❌ Debian 包上传失败: $file (trixie)"
+              "https://${REGISTRY}/api/packages/${OWNER}/debian/pool/stable/main/upload" || {
+              echo "❌ Debian 包上传失败: $file (stable)"
               exit 1
             }
           done
@@ -166,7 +156,7 @@ jobs:
           echo "📝 生成 Release..."
 
           export REGISTRY OWNER TAG
-          RELEASE_DATA=$(python3 -c 'import json,glob,os;r=os.environ["REGISTRY"];o=os.environ["OWNER"];p=os.environ["PRODUCT_NAME"];t=os.environ["TAG"];b=["## Release "+t,"","### 📥 下载方式","","#### 方式 1: 直接下载（推荐）","","点击下面 **Assets** 部分的文件名直接下载。","","#### 方式 2: Generic Package Registry",""]+[f"- [`{f}`](https://{r}/api/packages/{o}/generic/{p}/{t}/{f})" for f in sorted(glob.glob("*.tar.gz"))]+["","#### 方式 3: Debian Repository","","**Debian 12 (bookworm):**","","```bash","# Download GPG key",f"sudo curl https://{r}/api/packages/{o}/debian/repository.key -o /etc/apt/keyrings/gitea-{o}.asc","","# Add repository",f"echo \"deb [signed-by=/etc/apt/keyrings/gitea-{o}.asc] https://{r}/api/packages/{o}/debian bookworm main\" | sudo tee -a /etc/apt/sources.list.d/{o}.list","","# Update and install","sudo apt-get update","sudo apt-get install xxxigcc","```","","**Debian 13 (trixie):**","","```bash","# Download GPG key",f"sudo curl https://{r}/api/packages/{o}/debian/repository.key -o /etc/apt/keyrings/gitea-{o}.asc","","# Add repository",f"echo \"deb [signed-by=/etc/apt/keyrings/gitea-{o}.asc] https://{r}/api/packages/{o}/debian trixie main\" | sudo tee -a /etc/apt/sources.list.d/{o}.list","","# Update and install","sudo apt-get update","sudo apt-get install xxxigcc","```"];print(json.dumps({"tag_name":t,"name":f"Release {t}","body":"\n".join(b),"draft":False,"prerelease":False}))')
+          RELEASE_DATA=$(python3 -c 'import json,glob,os;r=os.environ["REGISTRY"];o=os.environ["OWNER"];p=os.environ["PRODUCT_NAME"];t=os.environ["TAG"];b=["## Release "+t,"","### 📥 下载方式","","#### 方式 1: 直接下载（推荐）","","点击下面 **Assets** 部分的文件名直接下载。","","#### 方式 2: Generic Package Registry",""]+[f"- [`{f}`](https://{r}/api/packages/{o}/generic/{p}/{t}/{f})" for f in sorted(glob.glob("*.tar.gz"))]+["","#### 方式 3: Debian Repository","","```bash","# Download GPG key",f"sudo curl https://{r}/api/packages/{o}/debian/repository.key -o /etc/apt/keyrings/gitea-{o}.asc","","# Add repository",f"echo \"deb [signed-by=/etc/apt/keyrings/gitea-{o}.asc] https://{r}/api/packages/{o}/debian stable main\" | sudo tee -a /etc/apt/sources.list.d/{o}.list","","# Update and install","sudo apt-get update","sudo apt-get install xxxigcc","```"];print(json.dumps({"tag_name":t,"name":f"Release {t}","body":"\n".join(b),"draft":False,"prerelease":False}))')
 
           # 创建 Release
           echo ""