fix: align installer compose secret

compose.yaml

@@ -48,4 +48,4 @@ services:
     restart: "no"
 secrets:
   xymedia-postgres-password:
-    file: ${XYMEDIA_INSTALL_DIR}/secrets/postgres-password
+    file: ${XYMEDIA_INSTALL_DIR}/secrets/xymedia-postgres-password

install.sh

@@ -60,8 +60,8 @@ write_probe="$INSTALL_DIR/xymediavault-write-probe-$$"
 if ! touch "$write_probe" || ! rm -f "$write_probe"; then
   die "安装目录不可写：$INSTALL_DIR；请使用 --install-dir 指定本机可写目录，例如 /opt/xymediavault"
 fi
-INSTALL_LOG="$INSTALL_DIR/install.log"
-: >"$INSTALL_LOG"
+INSTALL_LOG="${TMPDIR:-/tmp}/xymediavault-install-$$.log"
+: >"$INSTALL_LOG" || die "无法创建临时安装日志：$INSTALL_LOG"
 chmod 600 "$INSTALL_LOG"
 chmod 700 "$INSTALL_DIR/secrets"
 if [[ -n $PG_PASSWORD_FILE ]]; then
@@ -202,7 +202,7 @@ if (( EXISTING_DB )); then export XYMEDIA_EXTERNAL_MIGRATION_CONFIRM=YES; run_lo
 progress '启动 XyMediaVault 服务'
 run_logged "${COMPOSE[@]}" --project-directory "$INSTALL_DIR" --env-file "$INSTALL_DIR/.env" -f "$INSTALL_DIR/compose.yaml" up -d app || die 'XyMediaVault 启动失败'
 for elapsed in $(seq 0 118 2); do
-  curl --fail --silent "http://127.0.0.1:$API_PORT/api/health" >/dev/null && { printf '\033[2K\r[%d/%d] 安装完成：XyMediaVault 已就绪\n' "$TOTAL_STEPS" "$TOTAL_STEPS"; printf '管理地址：http://127.0.0.1:%s\n安装日志：%s\n' "$API_PORT" "$INSTALL_LOG"; exit 0; }
+  curl --fail --silent "http://127.0.0.1:$API_PORT/api/health" >/dev/null && { cp "$INSTALL_LOG" "$INSTALL_DIR/install.log" 2>/dev/null || true; printf '\033[2K\r[%d/%d] 安装完成：XyMediaVault 已就绪\n' "$TOTAL_STEPS" "$TOTAL_STEPS"; printf '管理地址：http://127.0.0.1:%s\n安装日志：%s\n' "$API_PORT" "$INSTALL_LOG"; exit 0; }
   printf '\033[2K\r[%d/%d] 等待 XyMediaVault 健康检查（%s 秒）' "$STEP" "$TOTAL_STEPS" "$elapsed"
   sleep 2
 done