Can register an account with the bot to manage variables and stuff in
private room, and then separately "link" it with a password, which
makes it available to anything using the bot API (aka web app). Can
also unlink and unregister. Check command no longer validates
password. It just checks and reports your account status.
Instead of automatically creating a user account entry for any user
executing a command, we use an Account enum which covers both
registered and "transient" unregistered users. If a user registers,
the context has the actual user instance available, with state and
everything. If a user is unregistered, then the account is considered
transient for the request, with only the username available.
- Adds a user_state table, currently only with active_room.
- A user must have an account to take advantage of state.
- Now, all users will get an 'account' even if they don't explicitly register.
- Bonus: converts user queries to compile-time checked macros.
To support these automatically created "accounts," the accounts table
now also has an account_status column, indicating if the user is
registered or not (or pending activation--future use).
The User model has been updated with extra properties from the state,
and the user is now carrried in the Context during command execution.
A user is ensured to be created before executing the command.
- If the room is end-to-end encrypted.
- If only the sending user and the bot are present in the room.
This lays groundwork for sensitive commands like registering a user
account with the bot.