refactor: remove unused files and update logging structure

- Deleted unused configuration and SQL files related to Drizzle.
- Removed deprecated logging methods and updated logging to use a unified structure.
- Cleaned up package dependencies by removing unused packages from package.json and package-lock.json.
- Updated various import paths for consistency and clarity.
- Introduced new action and event models to enhance analytics capabilities.

example/README.md

@@ -1,87 +0,0 @@
-# Next.js Autumn Starter Template
-
-[Autumn](https://useautumn.com) is an open-source layer between Stripe and your application, allowing you to create any pricing model and embed it with a couple lines of code.
-
-This template demonstrates how you can set up pricing in just 3 lines of code using Autumn. The example used is a simple AI chat message app.
-
-View the example app here: https://nextjs-autumn-template.vercel.app/
-
-## Getting Started
-
-1. Clone the repository:
-
-```bash
-git clone https://github.com/useautumn/nextjs-autumn-template.git
-npm install
-npm run dev
-```
-
-2. Create an account at [app.useautumn.com](https://app.useautumn.com)
-
-3. Get your Autumn secret key from the [sandbox environment](https://app.useautumn.com/sandbox/dev) and add it to `.env.local`:
-
-```env
-AUTUMN_SECRET_KEY=am_sk_test_OAFUOL0meFCjpMMmFeU13gHnrEOGAHWp2YTLECyY7k
-```
-
-4. Connect your Stripe account in the [integrations page](https://app.useautumn.com/sandbox/integrations/stripe)
-
-## Understanding the Implementation
-
-This template implements a simple AI chat message app where users can:
-
-- Send messages (with usage limits)
-- Upgrade to a pro plan
-- View their usage and subscription details
-
-### Key Endpoints
-
-1. **Check if a user can access a feature** (`/entitled`)
-
-```typescript
-// Check if user can send a message
-const allowed = await entitled({
-  customerId: CUSTOMER_ID,
-  featureId: FEATURE_ID,
-});
-
-if (!allowed) {
-  toast.error("You're out of messages!");
-  return;
-}
-```
-
-2. **Track a user's usage of a feature** (`/events`)
-
-```typescript
-// Record that a message was sent
-await sendEvent({
-  customerId: CUSTOMER_ID,
-  featureId: FEATURE_ID,
-});
-```
-
-3. **Get a Stripe Checkout URL so the customer can purchase a plan** (`/attach`)
-
-```typescript
-// Upgrade user to pro plan
-const res = await attachProduct({
-  customerId: CUSTOMER_ID,
-  productId: "pro",
-});
-window.open(res.checkout_url, "_blank");
-```
-
-<!-- ### Additional Features
-
-The template also includes `getOrCreateCustomer` to fetch customer details, entitlements, and subscription status, which is used in the customer details card in the UI:
-
-```typescript
-const customer = await getOrCreateCustomer(CUSTOMER_ID);
-// Returns: customer details, product subscriptions, and feature entitlements
-``` -->
-
-## Learn More
-
-- [Autumn Documentation](https://docs.useautumn.com)
-- [Next.js Documentation](https://nextjs.org/docs)