fix(avm): Fix note hash exists fuzzing

[sirasistant]

Now we allow prefilling the tree with some note hashes and we notify instruction generation with existing note hashes (prefill + nonrevertible inserted)

[IlyasRidhuan]

Nice! The cleanup looks really good

[AztecBot]

Flakey Tests

🤖 says: This CI run detected 4 tests that failed, but were tolerated due to a .test_patterns.yml entry.

\033FLAKED\033 (8;;http://ci.aztec-labs.com/83d95e970eb2e65a�83d95e970eb2e65a8;;�):  yarn-project/end-to-end/scripts/run_test.sh simple src/e2e_epochs/epochs_invalidate_block.parallel.test.ts "committee member invalidates a block if proposer does not come through" (95s) (code: 1) group:e2e-p2p-epoch-flakes (\033sirasistant\033: remove extraneous import)
\033FLAKED\033 (8;;http://ci.aztec-labs.com/9020150d6c9628e6�9020150d6c9628e68;;�): yarn-project/end-to-end/scripts/run_test.sh web3signer src/composed/web3signer/e2e_multi_validator_node_key_store.test.ts (36s) (code: 1) (\033sirasistant\033: remove extraneous import)
\033FLAKED\033 (8;;http://ci.aztec-labs.com/f22be2f0b43bb2cf�f22be2f0b43bb2cf8;;�): yarn-project/scripts/run_test.sh stdlib/src/p2p/topics.test.ts (2s) (code: 1) group:e2e-p2p-epoch-flakes (\033sirasistant\033: remove extraneous import)
\033FLAKED\033 (8;;http://ci.aztec-labs.com/5d94f47e12091f2c�5d94f47e12091f2c8;;�):  yarn-project/end-to-end/scripts/run_test.sh simple src/e2e_p2p/gossip_network.test.ts (447s) (code: 1) group:e2e-p2p-epoch-flakes (\033sirasistant\033: remove extraneous import)