feat: add Docker deployment, update install script, and project configs

- Add Dockerfile and docker-compose.yml for containerized deployment
- Rewrite install.sh for Docker-based setup (multi-distro support)
- Add Go module files (go.mod, go.sum) for WGRplane backend
- Add wgrplane.service systemd unit for Go backend
- Add CI verification scripts in scripts/
- Update README.md with Docker deployment docs
- Update .gitignore for binaries and .sisyphus/

scripts/ci_ws_verify.sh

@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+echo "[CI] Verifying Gorilla dependencies and WebSocket endpoint (WS) in Go-enabled environment"
+
+cd app
+
+echo ">> Checking Go toolchain..." 
+if ! command -v go >/dev/null 2>&1; then
+  echo "Go is not installed in this environment. Exiting.";
+  exit 0
+fi
+
+echo ">> Fetching dependencies..."
+go get -u github.com/gorilla/mux
+go get -u github.com/gorilla/websocket
+
+echo ">> Tidying modules..."
+go mod tidy
+
+echo ">> Building project..."
+go build ./...
+
+echo ">> Running server in background..."
+go run main.go &
+PID=$!
+echo "[CI] Server PID: $PID"
+sleep 2
+
+echo ">> Testing WebSocket endpoint (ws://localhost:8080/ws/stats) using simple client..."
+if command -v websocat >/dev/null 2>&1; then
+  websocat -b ws://localhost:8080/ws/stats >/tmp/ws_test.txt &
+  WS_PID=$!
+  sleep 6
+  kill $WS_PID 2>/dev/null || true
+  echo "Captured output:"; head -n 5 /tmp/ws_test.txt || true
+else
+  echo "websocat not installed. Install to run WS test or use another client."
+fi
+
+echo ">> Cleaning up server process..."
+kill $PID 2>/dev/null || true
+wait $PID 2>/dev/null || true
+
+echo "[CI] Verification script completed."