Mint: add websockets for quote updates (#413)

* add websockets for quote updates

* add test (not working)

* wip: emit events to everyone

* wip: emit events to everyone

* wip, lots of things broken but invoice callback works

* wip

* add wip files

* tests almost passing

* add task

* refactor nut constants

* startup fix

* works with old mints

* wip cli

* fix mypy

* remove automatic invoice test now with websockets

* remove comment

* better logging

* send back response

* add rate limiter to websocket

* add rate limiter to subscriptions

* refactor websocket ratelimit

* websocket tests

* subscription kinds

* doesnt start

* remove circular import

* update

* fix mypy

* move test file in test because it fails if it runs later... dunno why

* adjust websocket NUT-06 settings

* local import and small fix

* disable websockets in CLI if "no_check" is selected

* move subscription test to where it was

* check proof state with callback, add tests

* tests: run mint fixture per module instead of per session

* subscription command name fix

* test per session again

* update test race conditions

* fix tests

* clean up

* tmp

* fix db issues and remove cached secrets

* fix tests

* blindly try pipeline

* remove comments

* comments

cashu/mint/protocols.py

@@ -4,6 +4,7 @@ from ..core.base import Method, MintKeyset, Unit
 from ..core.db import Database
 from ..lightning.base import LightningBackend
 from ..mint.crud import LedgerCrud
+from .events.events import LedgerEventManager
 
 
 class SupportsKeysets(Protocol):
@@ -18,3 +19,7 @@ class SupportsBackends(Protocol):
 class SupportsDb(Protocol):
     db: Database
     crud: LedgerCrud
+
+
+class SupportsEvents(Protocol):
+    events: LedgerEventManager