Add prev_hash to soft confirmations

[rakanalh]

Description

Linked Issues

• Fixes add prev_hash to soft confirmations #845

[eyusufatik]

great work. only one problem, we pass state root = 0 to all stf modules in the begin_soft_confirmation_hook now. I mostly addressed this in my comments

[codecov]

Codecov Report

Attention: Patch coverage is 75.00000% with 41 lines in your changes missing coverage. Please review.

Project coverage is 78.3%. Comparing base (f634146) to head (7d1a679).

Additional details and impacted files

Files	Coverage Δ
bin/citrea/src/test_rpc.rs	99.7% <100.0%> (+<0.1%)	⬆️
crates/primitives/src/error.rs	0.0% <ø> (ø)
crates/sequencer-client/src/lib.rs	100.0% <100.0%> (ø)
crates/sequencer/src/sequencer.rs	91.5% <100.0%> (+<0.1%)	⬆️
...reign-sdk/full-node/db/sov-db/src/ledger_db/mod.rs	95.9% <100.0%> (+<0.1%)	⬆️
...ereign-sdk/full-node/db/sov-db/src/schema/types.rs	76.1% <100.0%> (ø)
...vereign-sdk/full-node/sov-stf-runner/src/runner.rs	20.9% <100.0%> (+0.2%)	⬆️
...ign-sdk/module-system/sov-modules-api/src/hooks.rs	82.1% <100.0%> (-4.7%)	⬇️
...sovereign-sdk/rollup-interface/src/node/rpc/mod.rs	91.3% <ø> (ø)
...p-interface/src/state_machine/soft_confirmation.rs	97.3% <100.0%> (-0.2%)	⬇️
... and 13 more

... and 1 file with indirect coverage changes