Electrum

config/regtest: add config to disable automatic fee updates

Some regtest tests depend on manual fee injection to simulate certain
mempool conditions (e.g. lnwatcher_waits_until_fees_go_down). This is
done by manually injecting fee estimates into the `Network` object using
the `test_inject_fee_etas` cli command. However it can still happen that
the Network automatically updates its fee estimates from the connected
electrum server in the time between injecting the fee and the actual
tested logic making decisions based on the fee. This causes the test to
fail sometimes.
By setting the `test_disable_automatic_fee_eta_update` true the Network
will stop automatically updating the fee estimates and the test will
behave as expected.

synchronizer: small refactor _on_address_status

follow-up prev: add type-hints, etc

transaction: (move-only) move some methods from Tx to PartialTx cls

these were already assuming `isinstance(self, PartialTransaction)`

wallet: (trivial) mark calc_unused_change_addresses as private

cli: add command to export preimage

..also export preimage in check_hold_invoice return value if available.

I intentionally did not return the preimage in the returned dict of
wallet.export_requests as this seems risky to do considering some users
of the cli might forward the response to a payer and the payserver
exposes it too.

Closes https://github.com/spesmilo/electrum/issues/10176

lnworker: enforce creation of PaymentInfo for b11

Enforce that the information used to create a bolt11 invoice using
`get_bolt11_invoice()` is similar to the related instance of PaymentInfo
by requiring a PaymentInfo as argument for `get_bolt11_invoice()`.
This way the invoice cannot differ from the created PaymentInfo.
This allows to use the information in PaymentInfo for validation of
incoming htlcs more reliably.

To cover all required information for the creation of a b11 invoice the
PaymentInfo class has to be extended with a expiry and
min_final_cltv_expiry. This requires a db upgrade.

lnpeer: cleanup imports

transaction: SPV-verify TxInput.block_height and .spent_height

adb: change API of util.TxMinedInfo: height() is now always SPV-ed

wallet: anchor reserve: handle wallet.use_change being off

fixes https://github.com/spesmilo/electrum/issues/10231

wallet: fix AttributeError when getting help text

Fixes AttributeError when trying to get `num_sats_can_receive()` in
wallets without lnworker. Fixes https://github.com/spesmilo/electrum/issues/8100#issuecomment-3294556043.

```
Traceback (most recent call last):
File "/usr/lib/python3.13/site-packages/electrum/gui/qt/request_list.py", line 103, in selection_changed
self.receive_tab.update_current_request()
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
File "/usr/lib/python3.13/site-packages/electrum/gui/qt/receive_tab.py", line 237, in update_current_request
help_texts = self.wallet.get_help_texts_for_receive_request(req)
File "/usr/lib/python3.13/site-packages/electrum/wallet.py", line 3446, in get_help_texts_for_receive_request
can_receive = self.lnworker.num_sats_can_receive()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'num_sats_can_receive'
```

wallet.get_full_history: rm "include_fiat" arg, infer it from fx

ref https://github.com/spesmilo/electrum/pull/10209#discussion_r2334228490

tests: restore from old "hex" seed

wallet history: also add fiat value to child tx

Makes `get_full_history` also add the fiat values to the children of a
tx, not only to the group itself.

commands: add clear error that plugin commands cannot be run with -o

note that atm none of the plugin commands are explicitly marked with 'n' but all require it.
Also note that 'w' for plugin commands kind of implies 'n' anyway, as the 'load_wallet' hook relies on having a daemon.

```
$ ./run_electrum -o --testnet labels_pull
Password:
1.96 | E | __main__ | error running command (without daemon)
Traceback (most recent call last):
File "/home/user/wspace/electrum/./run_electrum", line 587, in handle_cmd
result = fut.result()
File "/usr/lib/python3.13/concurrent/futures/_base.py", line 456, in result
return self.__get_result()
~~~~~~~~~~~~~~~~~^^
File "/usr/lib/python3.13/concurrent/futures/_base.py", line 401, in __get_result
raise self._exception
File "/home/user/wspace/electrum/./run_electrum", line 267, in run_offline_command
result = await func(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/user/wspace/electrum/electrum/commands.py", line 202, in func_wrapper
return await func(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/user/wspace/electrum/electrum/commands.py", line 2214, in func_wrapper
kwargs['plugin'] = daemon._plugins.get_plugin(plugin_name)
^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute '_plugins'
```

keystore: get_private_keys should not return None

closes https://github.com/spesmilo/electrum/issues/10200

qml: add some type hints to qetxfinalizer

qt: receive tab: also suggest swap for 0 amnt req

Also suggest a submarine swap if the user creates a 0 amount invoice and
has 0 sat incoming liquidity as it won't be possible to receive
anything.
Users potentially just open a channel, then want to create a lightning invoice
without amount like they are used to from onchain addresses, and then
wonder why receiving doesn't work. So we should at least propose a swap
if there is no inbound liquidity at all.

qml: use declarative form for invoiceResolved and requestResolved in WalletMainView

(cherry picked from commit 78b2e3df6c47ad5d5d119cbc2372e62807f372fd)

qml: separate PI resolving from QEInvoiceParser

separates the resolving step from the QEInvoiceParser so the 'recipient'
can be resolved first and then either an QEInvoiceParser can be used if
it is a sending request that has been resolved (invoice, address,
lnurlp, ...), or RequestDetails can be used if the resolved 'recipient'
turns out to be a voucher/LNURLW string.

# Conflicts:
# electrum/gui/qml/qeinvoice.py

lnurl: implement LNURL-withdraw

adds handling of lnurl-withdraw payment identifiers which allow users to
withdraw bitcoin from a service by scanning a qr code or pasting the
lnurl-w code as "sending" address.

qml: LoadingWalletDialog: add some padding

add some padding at the bottom of the LoadingWalletDialog so the
spinning circle is not directly at the bottom of the dialog, looks a bit
nicer this way.

contrib: add "set -e" to bash scripts where missing

prepare release 4.6.2