Move bootstrap installer to project root, document one-liner install

Simplifies the download URL for the curl-pipe-bash quickstart.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

scripts/bootstrap.sh

@@ -1,71 +0,0 @@
-#!/usr/bin/env bash
-# One-shot bootstrap installer for wireguard-ui-multi.
-# Downloads source, builds it, and runs the native installer - end to end,
-# no pre-existing checkout required.
-#
-# Usage (on target Debian/Ubuntu host, as root):
-#   curl -fsSL https://gitea.perlbach24.de/scripte/wireguard-ui-multi/raw/branch/main/scripts/bootstrap.sh | bash
-# or:
-#   bash bootstrap.sh [--ref main] [--src-dir /opt/wireguard-ui-multi-src]
-set -euo pipefail
-
-REPO_URL="https://gitea.perlbach24.de/scripte/wireguard-ui-multi.git"
-REF="main"
-SRC_DIR="/opt/wireguard-ui-multi-src"
-GO_VERSION="1.22.5"
-
-while [[ $# -gt 0 ]]; do
-	case "$1" in
-		--ref) REF="$2"; shift 2 ;;
-		--src-dir) SRC_DIR="$2"; shift 2 ;;
-		--repo-url) REPO_URL="$2"; shift 2 ;;
-		-h|--help)
-			echo "Usage: $0 [--ref <branch>] [--src-dir <path>] [--repo-url <url>]" >&2
-			exit 1
-			;;
-		*) echo "Unknown option: $1" >&2; exit 1 ;;
-	esac
-done
-
-if [[ "$(id -u)" -ne 0 ]]; then
-	echo "Must run as root (installs packages, writes to /usr/local, /etc, /var/lib)." >&2
-	exit 1
-fi
-
-echo "Installing base dependencies (git, wireguard-tools, nftables, curl, ca-certificates)..."
-export DEBIAN_FRONTEND=noninteractive
-apt-get update
-apt-get install -y git wireguard-tools nftables curl ca-certificates
-
-if ! command -v go >/dev/null 2>&1; then
-	echo "Installing Go ${GO_VERSION}..."
-	ARCH="$(dpkg --print-architecture)"
-	curl -fsSL "https://go.dev/dl/go${GO_VERSION}.linux-${ARCH}.tar.gz" -o /tmp/go.tar.gz
-	tar -C /usr/local -xzf /tmp/go.tar.gz
-	ln -sf /usr/local/go/bin/go /usr/local/bin/go
-	rm -f /tmp/go.tar.gz
-fi
-
-if [[ -d "$SRC_DIR/.git" ]]; then
-	echo "Updating existing checkout at $SRC_DIR..."
-	git -C "$SRC_DIR" fetch --depth 1 origin "$REF"
-	git -C "$SRC_DIR" checkout "$REF"
-	git -C "$SRC_DIR" reset --hard "origin/$REF"
-else
-	echo "Cloning $REPO_URL ($REF) into $SRC_DIR..."
-	rm -rf "$SRC_DIR"
-	git clone --depth 1 --branch "$REF" "$REPO_URL" "$SRC_DIR"
-fi
-
-echo "Building wireguard-ui-multi..."
-cd "$SRC_DIR"
-go build -o wireguard-ui-multi ./cmd/wireguard-ui-multi
-
-echo "Running native installer..."
-bash scripts/install.sh
-
-echo
-echo "Bootstrap complete. Source kept at $SRC_DIR for future updates (re-run this script to update)."
-echo "To enable and start the service now, run:"
-echo
-echo "  systemctl enable --now wireguard-ui-multi.service"