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/python-cart/main.py

@@ -0,0 +1,70 @@
+import json
+import time
+from flask import request
+
+# In-memory корзина (живёт пока жив под poolmgr)
+_CARTS: dict = {}
+
+
+def _get_cart(user_id: str) -> dict:
+    if user_id not in _CARTS:
+        _CARTS[user_id] = {"user_id": user_id, "items": [], "created_at": int(time.time())}
+    return _CARTS[user_id]
+
+
+def _cart_total(cart: dict) -> float:
+    return round(sum(i["price"] * i["qty"] for i in cart["items"]), 2)
+
+
+def main():
+    method = request.method.upper()
+    user_id = request.headers.get("x-user-id", "user-1")
+    body = {}
+    if request.data:
+        try:
+            body = json.loads(request.data)
+        except Exception:
+            pass
+
+    cart = _get_cart(user_id)
+
+    if method == "GET":
+        return json.dumps({
+            "status": "ok",
+            "cart": cart,
+            "total": _cart_total(cart),
+            "item_count": len(cart["items"]),
+        })
+
+    if method == "POST":
+        # Добавить товар: {"product_id": "p-001", "name": "...", "price": 29.99, "qty": 2}
+        required = ["product_id", "name", "price", "qty"]
+        if not all(k in body for k in required):
+            return {"status": 400,
+                    "body": json.dumps({"error": "missing fields", "required": required}),
+                    "headers": {"Content-Type": "application/json"}}
+
+        # Если товар уже в корзине — увеличиваем qty
+        for item in cart["items"]:
+            if item["product_id"] == body["product_id"]:
+                item["qty"] += int(body["qty"])
+                return json.dumps({"status": "ok", "action": "updated", "cart": cart,
+                                   "total": _cart_total(cart)})
+
+        cart["items"].append({
+            "product_id": body["product_id"],
+            "name": body["name"],
+            "price": float(body["price"]),
+            "qty": int(body["qty"]),
+        })
+        return json.dumps({"status": "ok", "action": "added", "cart": cart,
+                           "total": _cart_total(cart)})
+
+    if method == "DELETE":
+        product_id = body.get("product_id", "")
+        cart["items"] = [i for i in cart["items"] if i["product_id"] != product_id]
+        return json.dumps({"status": "ok", "action": "removed", "cart": cart,
+                           "total": _cart_total(cart)})
+
+    return {"status": 405, "body": json.dumps({"error": "method not allowed"}),
+            "headers": {"Content-Type": "application/json"}}