feat: add stripe_agent for product and price management

[Copilot]

Adds a standalone stripe_agent.py module for managing Stripe products and prices, complementing the existing api/stripe_inauguration.py checkout flow.

New module: stripe_agent.py

• ensure_product(name, *, description, metadata) — idempotent product creation; searches by name first, falls back to create on InvalidRequestError (test-mode accounts)
• create_price(product_id, unit_amount, currency, *, recurring, metadata) — one-time or recurring price; validates non-empty product_id and unit_amount >= 0; normalises currency to lowercase
• list_active_prices(product_id) — returns all active prices via auto_paging_iter as plain dict list

All three functions resolve STRIPE_SECRET_KEY from env via a shared _configure_stripe() helper, consistent with api/stripe_inauguration.py.

product = ensure_product("TryOnYou Snap", description="Zero-Size · PCT/EP2025/067317")
price = create_price(product["id"], 9800, "eur", recurring={"interval": "month"})
prices = list_active_prices(product["id"])

Other changes

• .gitignore — excludes stripe_agent_*.json / stripe_agent_*.log (local API dumps that may contain sensitive product/price IDs)
• tests/test_stripe_agent.py — 23 unit tests using unittest.mock.patch; covers validation errors, search-hit/miss paths, fallback on InvalidRequestError, recurring prices, and paging behaviour

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
tryonyou-pilot	Error		Apr 8, 2026 2:06pm

[LVT-ENG]

Yes

[LVT-ENG]

Yes

[LVT-ENG]

Yes