container: hledger-flow: paypal-business: add expenses description subaccount

- If expense description exists, add description as subaccount
  * This is consistent with all other legacy finance rules
    - Typically, legacy institutions provide a column for category type.
      Since PayPal doesn't provide that data, using the description will
      provide the needed information for granular (full view) reporting.

- Removes old TODO that is no longer applicable
  * End-user will need to use custom rules, if needed

container/src/hledger-flow/accounts/paypal-business/paypal-business-shared.rules

@@ -1,6 +1,6 @@
 # docker-finance | modern accounting for the power-user
 #
-# Copyright (C) 2021-2024 Aaron Fiore (Founder, Evergreen Crypto LLC)
+# Copyright (C) 2021-2025 Aaron Fiore (Founder, Evergreen Crypto LLC)
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -121,6 +121,10 @@ if %direction ^OUT$
   amount -%amount_ %currency_
   account2 expenses:paypal-business:%subaccount:%currency_
 
+if %direction ^OUT$
+& %description_ [0-9a-z]
+  account2 expenses:paypal-business:%subaccount:%description_:%currency_
+
 if %status_ Reversed
   amount -%amount_ %currency_
 
@@ -135,43 +139,4 @@ if %direction ^OUT$
 if %type Account Hold
   account2 assets:paypal-business:%subaccount:payable:account_hold:%currency_
 
-# TODO: subaccount categories where applicable
-
-# Advertising
-# Continuing education
-# Credit and collection fees
-# Bank fees
-# Dues and subscriptions
-# Employee benefit programs
-# Insurance
-# Maintenance and repairs
-# Legal and professional expenses
-# Office expenses and supplies
-# Telephone
-# Utilities
-# Postage and shipping
-# Printing
-# Rent
-# Salaries and other compensation
-# Travel
-# Utilities
-# Business meals
-# Business use of your car
-# Moving expenses
-# Depreciation
-# Charitable contributions
-# Child and/or dependent care
-# Startup expenses
-# Mortgage interest
-# Software
-# Books and magazine subscriptions
-# Foreign earned income
-# Medical expenses
-# Licenses and permits
-# Manufacturing or raw materials
-# Retirement contributions
-# Real estate taxes
-# Client gifts
-# Employee loans
-
 # vim: sw=2 sts=2 si ai et