feat: add web admin panel for node management

Add Flask panel with login, add/delete nodes, and share link copy.
Generate sing-box config from SQLite; add uninstall script and clean install flow.
Panel served at https://DOMAIN:8444 via nginx.

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/generate-keys.sh

@@ -1,12 +1,11 @@
 #!/usr/bin/env bash
-# 生成 Reality 与 Hysteria2 所需密钥，输出到 stdout 并写入 .env
+# 生成 Reality 密钥与面板登录密码，写入 .env
 set -euo pipefail
 
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 ROOT_DIR="$(dirname "$SCRIPT_DIR")"
 ENV_FILE="${ROOT_DIR}/.env"
 
-# 依赖 sing-box 生成 reality 密钥对
 if ! command -v sing-box &>/dev/null; then
   echo "sing-box 未安装，使用临时下载..." >&2
   TMP="$(mktemp -d)"
@@ -16,31 +15,28 @@ if ! command -v sing-box &>/dev/null; then
     aarch64) SB_ARCH="arm64" ;;
     *) echo "不支持的架构: $ARCH" >&2; exit 1 ;;
   esac
-  curl -fsSL "https://github.com/SagerNet/sing-box/releases/latest/download/sing-box-1.11.0-linux-${SB_ARCH}.tar.gz" \
+  curl -fsSL "https://github.com/SagerNet/sing-box/releases/download/v1.11.0/sing-box-1.11.0-linux-${SB_ARCH}.tar.gz" \
     | tar -xz -C "$TMP" --strip-components=1
   SB="$TMP/sing-box"
 else
   SB="sing-box"
 fi
 
-UUID="$("$SB" generate uuid)"
 KEYPAIR="$("$SB" generate reality-keypair)"
 PRIVATE_KEY="$(echo "$KEYPAIR" | grep 'PrivateKey:' | awk '{print $2}')"
 PUBLIC_KEY="$(echo "$KEYPAIR" | grep 'PublicKey:' | awk '{print $2}')"
 SHORT_ID="$("$SB" generate rand --hex 8)"
-HY2_PASSWORD="$("$SB" generate rand --base64 32 | tr -d '/+=' | head -c 24)"
+PANEL_PASSWORD="$("$SB" generate rand --base64 32 | tr -d '/+=' | head -c 20)"
 
 echo "========== 生成的密钥 =========="
-echo "UUID:              $UUID"
 echo "REALITY_PRIVATE_KEY: $PRIVATE_KEY"
 echo "REALITY_PUBLIC_KEY:  $PUBLIC_KEY"
 echo "REALITY_SHORT_ID:    $SHORT_ID"
-echo "HY2_PASSWORD:        $HY2_PASSWORD"
+echo "PANEL_PASSWORD:      $PANEL_PASSWORD"
 echo "================================"
 
 if [[ -f "$ENV_FILE" ]]; then
-  # 更新或追加 .env 中的密钥字段
-  for var in UUID REALITY_PRIVATE_KEY REALITY_PUBLIC_KEY REALITY_SHORT_ID HY2_PASSWORD; do
+  for var in REALITY_PRIVATE_KEY REALITY_PUBLIC_KEY REALITY_SHORT_ID PANEL_PASSWORD; do
     val="${!var}"
     if grep -q "^${var}=" "$ENV_FILE" 2>/dev/null; then
       sed -i "s|^${var}=.*|${var}=${val}|" "$ENV_FILE"
@@ -48,6 +44,9 @@ if [[ -f "$ENV_FILE" ]]; then
       echo "${var}=${val}" >> "$ENV_FILE"
     fi
   done
+  if ! grep -q "^PANEL_USERNAME=" "$ENV_FILE" 2>/dev/null; then
+    echo "PANEL_USERNAME=admin" >> "$ENV_FILE"
+  fi
   echo "已写入 $ENV_FILE"
 else
   echo "提示: 先复制 .env.example 为 .env 并填写 VPS_IP、DOMAIN 等，再重新运行本脚本" >&2