feat: big-suite terraform example + provider nodejs zip fix

- examples/big-suite: E-Commerce 10 functions, 6 layers, real depends_on
- provider: nodejs packages now wrapped in ESM zip (buildJSDeployZip)
- provider: loadPackageLiteral reads raw file, nodejs zip via source_dir
- all 10 functions verified working: python/node/ruby/go runtimes

examples/big-suite/code/go-order/go.mod

@@ -0,0 +1,3 @@
+module github.com/user/fn
+
+go 1.23

examples/big-suite/code/go-order/handler.go

@@ -0,0 +1,98 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"math/rand"
+	"net/http"
+	"time"
+)
+
+type OrderItem struct {
+	ProductID string  `json:"product_id"`
+	Name      string  `json:"name"`
+	Price     float64 `json:"price"`
+	Qty       int     `json:"qty"`
+}
+
+type OrderRequest struct {
+	UserID   string      `json:"user_id"`
+	Items    []OrderItem `json:"items"`
+	PayToken string      `json:"pay_token"`
+	Address  string      `json:"address"`
+}
+
+type OrderResponse struct {
+	Status    string      `json:"status"`
+	OrderID   string      `json:"order_id"`
+	UserID    string      `json:"user_id"`
+	Items     []OrderItem `json:"items"`
+	Total     float64     `json:"total"`
+	CreatedAt string      `json:"created_at"`
+	EstDays   int         `json:"estimated_delivery_days"`
+}
+
+func generateOrderID() string {
+	const chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
+	r := rand.New(rand.NewSource(time.Now().UnixNano()))
+	b := make([]byte, 10)
+	for i := range b {
+		b[i] = chars[r.Intn(len(chars))]
+	}
+	return "ORD-" + string(b)
+}
+
+func calcTotal(items []OrderItem) float64 {
+	total := 0.0
+	for _, item := range items {
+		total += item.Price * float64(item.Qty)
+	}
+	// Округление до 2 знаков
+	return float64(int(total*100)) / 100
+}
+
+func Handler(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Content-Type", "application/json")
+
+	if r.Method != http.MethodPost {
+		w.WriteHeader(http.StatusMethodNotAllowed)
+		fmt.Fprintln(w, `{"error":"method not allowed"}`)
+		return
+	}
+
+	var req OrderRequest
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		w.WriteHeader(http.StatusBadRequest)
+		fmt.Fprintf(w, `{"error":"invalid JSON: %s"}`, err.Error())
+		return
+	}
+
+	if req.UserID == "" {
+		w.WriteHeader(http.StatusUnprocessableEntity)
+		fmt.Fprintln(w, `{"error":"user_id required"}`)
+		return
+	}
+	if len(req.Items) == 0 {
+		w.WriteHeader(http.StatusUnprocessableEntity)
+		fmt.Fprintln(w, `{"error":"items cannot be empty"}`)
+		return
+	}
+	if req.PayToken == "" {
+		w.WriteHeader(http.StatusUnprocessableEntity)
+		fmt.Fprintln(w, `{"error":"pay_token required"}`)
+		return
+	}
+
+	resp := OrderResponse{
+		Status:    "created",
+		OrderID:   generateOrderID(),
+		UserID:    req.UserID,
+		Items:     req.Items,
+		Total:     calcTotal(req.Items),
+		CreatedAt: time.Now().UTC().Format(time.RFC3339),
+		EstDays:   3 + rand.Intn(5),
+	}
+
+	w.WriteHeader(http.StatusCreated)
+	json.NewEncoder(w).Encode(resp)
+}