Cursor rules v2 (#200)

* Add new Cursor rules based on new format

.cursor/rules/accounts-context.mdc

@@ -0,0 +1,77 @@
+---
+description: Personal Accounts context and functionality
+globs: apps/*/app/home/(user),packages/features/accounts/**
+alwaysApply: false
+---
+
+# Personal Account Context
+
+This rule provides guidance for working with personal account related components in the application.
+
+The user/personal account context in the application lives under the path `app/home/(user)`. Under this context, we identify the user using Supabase Auth.
+
+We can use the `requireUserInServerComponent` to retrieve the relative Supabase User object and identify the user. [require-user-in-server-component.ts](mdc:apps/web/lib/server/require-user-in-server-component.ts)
+
+### Client Components
+
+In a Client Component, we can access the `UserWorkspaceContext` and use the `user` object to identify the user.
+
+We can use it like this:
+
+```tsx
+import { useUserWorkspace } from '@kit/accounts/hooks/use-user-workspace';
+```
+
+This utility only works in paths under `apps/*/app/home/(user)`.
+
+## Guidelines
+
+### Components and Structure
+- Personal account components are used in the `/home/(user)` route
+- Reusable components should be in `packages/features/accounts/src/components`
+- Settings-related components should be in `packages/features/accounts/src/components/personal-account-settings`
+
+### State Management
+- Use the `UserWorkspaceContext` to access user workspace data
+- Personal account data can be fetched using `usePersonalAccountData` hook
+- Mutations should use React Query's `useMutation` hooks
+
+### Authentication Flow
+- User authentication status is available via `useUser` hook
+- Account deletion requires OTP verification
+- Password updates may require reauthentication
+
+### Feature Flags
+- Personal account features are controlled via `featureFlagsConfig` [feature-flags.config.ts](mdc:apps/web/config/feature-flags.config.ts)
+- Key flags: 
+  - `enableAccountDeletion`
+  - `enablePasswordUpdate`
+  - `enablePersonalAccountBilling`
+  - `enableNotifications`
+
+## Personal Account API
+
+The API for the personal account is [api.ts](mdc:packages/features/accounts/src/server/api.ts)
+
+A class that provides methods for interacting with account-related data in the database. Initializes a new instance of the `AccountsApi` class with a Supabase client.
+
+### AccountsApi
+```typescript
+constructor(client: SupabaseClient<Database>)
+```
+
+### Methods
+- `getAccount(id: string)` - Get account by ID
+- `getAccountWorkspace()` - Get current user's account workspace
+- `loadUserAccounts()` - Get all accounts for current user
+- `getSubscription(accountId: string)` - Get account subscription
+- `getOrder(accountId: string)` - Get account order
+- `getCustomerId(accountId: string)` - Get account customer ID
+
+## Database
+
+When applying Database rules [database.mdc](mdc:.cursor/rules/database.mdc) must ensure the authenticated user matches the account ID of the entity
+
+```sql
+account_id = (select auth.uid())
+```