Determinstic secrets / ecash restore (#131)

* first working version but some sats go missing

* back at it

* make format

* restore to main

* move mint database

* fix some tests

* make format

* remove old _construct_outputs we reintroduced in merge with main

* add type annotations

* add wallet private key to tests

* wallet: load proofs

* fix tests

* _generate_secrets with deterministic generation (temporary)

* allow wallet initialization with custom private key

* add pk to wallet api test

* mint scope=module

* remove private_key from test_wallet.py to see if it helps with the github tests

* readd private keys to tests

* workflow without env

* add more private key!

* readd env

* ledger scope session

* add default private key for testing

* generate private keys if not available

* testing

* its working!!!

* first iteration of bip32 working

* get mint info and add many type annotations

* tests

* fix tests with bip32

* restore from multiple mints

* disable profiler

* make format

* failed POST /mint do not increment secret counter

* store derivation path in each token

* fix tests

* refactor migrations so private keys can be generated by the wallet with .with_db() classmethod

* start fixing tests

* all tests passing except those that need to set a specific private key

* bip39 mnemonic to seed - with db but restore doesnt work yet with custom seed

* mnemonic restore works

* enter mnemonic in cli

* fix tests to use different mnemonic

* properly ask user for seed input

* tests: dont ask for inputs

* try to fix tests

* fix cashu -d

* fixing

* bump version and add more text to mnemonic enter

* add more comments

* add many more comments and type annotations in the wallet

* dont print generated mnemonic and dont wait for input

* fix test

* does this fix tests?

* sigh....

* make format

* do not restore from an initialized wallet

* fix mnemonics

* fix nitpicks

* print wallet name if nonstandard wallet

* fix merge error and remove comments

* poetry lock and requirements

* remove unused code

* fix tests

* mnemonic.lower() and add keyset id if not present for backwards compat

* edit comment

tests/test_crypto.py

@@ -43,9 +43,11 @@ def test_step1():
     """"""
     B_, blinding_factor = step1_alice(
         "test_message",
-        blinding_factor=bytes.fromhex(
-            "0000000000000000000000000000000000000000000000000000000000000001"
-        ),  # 32 bytes
+        blinding_factor=PrivateKey(
+            privkey=bytes.fromhex(
+                "0000000000000000000000000000000000000000000000000000000000000001"
+            )  # 32 bytes
+        ),
     )
 
     assert (
@@ -60,9 +62,12 @@ def test_step1():
 def test_step2():
     B_, _ = step1_alice(
         "test_message",
-        blinding_factor=bytes.fromhex(
-            "0000000000000000000000000000000000000000000000000000000000000001"
-        ),  # 32 bytes
+        blinding_factor=PrivateKey(
+            privkey=bytes.fromhex(
+                "0000000000000000000000000000000000000000000000000000000000000001"
+            ),
+            raw=True,
+        ),
     )
     a = PrivateKey(
         privkey=bytes.fromhex(