Mint: watchdog balance log and killswitch (#705)

* wip store balance

* store balances in watchdog worker

* move mint_auth_database setting

* auth db

* balances returned as Amount (instead of int)

* add test for balance change on invoice receive

* fix 1 test

* cancel tasks on shutdown

* watchdog can now abort

* remove wallet api server

* fix lndgrpc

* fix lnbits balance

* disable watchdog

* balance lnbits msat

* test db watcher with its own database connection

* init superclass only once

* wip: log balance in keysets table

* check max balance using new keyset balance

* fix test

* fix another test

* store fees in keysets

* format

* cleanup

* shorter

* add keyset migration to auth server

* fix fakewallet

* fix db tests

* fix postgres problems during migration 26 (mint)

* fix cln

* ledger

* working with pending

* super fast watchdog, errors

* test new pipeline

* delete walletapi

* delete unneeded files

* revert workflows

tests/wallet/test_wallet_cli.py

@@ -115,7 +115,7 @@ def test_balance(cli_prefix):
     print("------ BALANCE ------")
     print(result.output)
     w = asyncio.run(init_wallet())
-    assert f"Balance: {w.available_balance} sat" in result.output
+    assert f"Balance: {w.available_balance}" in result.output
     assert result.exit_code == 0