Model Context Protocol (MCP) support with new use case (#42)

* initial mcp

* food ordering with mcp

* prompt eng

* splitting out goals and updating docs

* a diff so I can get tests from codex

* a diff so I can get tests from codex

* oops, missing files

* tests, file formatting

* readme and setup updates

* setup.md link fixes

* readme change

* readme change

* readme change

* stripe food setup script

* single agent mode default

* prompt engineering for better multi agent performance

* performance should be greatly improved

* Update goals/finance.py

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update activities/tool_activities.py

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* co-pilot PR suggested this change, and now fixed it

* stronger wording around json format response

* formatting

* moved docs to dir

* moved image assets under docs

* cleanup env example, stripe guidance

* cleanup

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

tools/create_invoice.py

@@ -1,17 +1,14 @@
 import os
 
-import stripe
 from dotenv import load_dotenv
 
-load_dotenv(override=True)  # Load environment variables from a .env file
-
-stripe.api_key = os.getenv("STRIPE_API_KEY")
-
 
 def ensure_customer_exists(
     customer_id: str = None, email: str = "default@example.com"
 ) -> str:
     """Ensure a Stripe customer exists; create one if not."""
+    import stripe
+
     if customer_id:
         try:
             stripe.Customer.retrieve(customer_id)
@@ -27,6 +24,12 @@ def ensure_customer_exists(
 
 def create_invoice(args: dict) -> dict:
     """Create and finalize a Stripe invoice."""
+    import stripe
+
+    # Load environment variables and configure stripe
+    load_dotenv(override=True)
+    stripe.api_key = os.getenv("STRIPE_API_KEY")
+
     # If an API key exists in the env file, find or create customer
     if stripe.api_key is not None and stripe.api_key != "":
         customer_id = ensure_customer_exists(