Mint: Recover pending melts at startup (#499)

* wip works with fakewallet

* startup refactor

* add tests

* regtest tests for pending melts

* wip CLN

* remove db migration

* remove foreign key relation to keyset id

* fix: get_promise from db and restore DLEQs

* test: check for keyset not found error

* fix migrations

* lower-case all db column names

* add more tests for regtest

* simlate failure for lightning

* test wallet spent state with hodl invoices

* retry

* regtest with postgres

* retry postgres

* add sleeps

* longer sleep on github

* more sleep for github sigh

* increase sleep ffs

* add sleep loop

* try something

* do not pay with wallet but with ledger

* fix lnbits pending state

* fix pipeline to use fake admin from docker

.github/workflows/regtest.yml

@@ -52,10 +52,6 @@ jobs:
           chmod -R 777 .
           bash ./start.sh
 
-      - name: Create fake admin
-        if: ${{ inputs.backend-wallet-class == 'LNbitsWallet' }}
-        run: docker exec cashu-lnbits-1 poetry run python tools/create_fake_admin.py
-
       - name: Run Tests
         env:
           WALLET_NAME: test_wallet