refactor: rebuild PrivHunter with React, Gin and SQLite

Makefile

@@ -0,0 +1,12 @@
+.PHONY: build test dev clean
+build:
+	cd frontend && npm ci && npm run build
+	go build -o bin/privhunter ./cmd/privhunter
+test:
+	go test -race ./...
+	go vet ./...
+	cd frontend && npm run build
+dev:
+	go run ./cmd/privhunter
+clean:
+	rm -rf bin frontend/dist