feat!: split compute note hash and nullifier to reduce hashing#21639
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…1134, #21072, #21186, #21189, #21229, #21228, #21234, #21639) (#21745) ## Summary Combined backport of 12 PRs to v4-next, cherry-picked in chronological merge order: 1. #20512 — docs: add delayedpublicmutable apiref, fix misc docs 2. #20379 — feat: custom message handlers in Aztec.nr 3. #20831 — feat!: make unused msg disco fns private 4. #21024 — feat: add compile-time size check for events and error code links 5. #21134 — chore: add warning on invalid recipients 6. #21072 — feat: add aztecaddress::is_valid 7. #21186 — chore: use returns `true` for boolean fns 8. #21189 — feat: add note hash and nullifier helper functions with domain separation 9. #21229 — docs: small delayedpubmut update 10. #21228 — test: restore pubmut tests 11. #21234 — fix: claim contract & improve nullif docs 12. #21639 — feat!: split compute note hash and nullifier to reduce hashing Each PR is a separate commit (raw cherry-pick with conflicts left in), followed by a single final commit that resolves all conflicts — making it easy to review the conflict resolution independently. ## Conflict resolution (last commit) - `delayed_public_mutable.nr` / `public_immutable.nr` — merged doc comments from both sides - `aztec.nr` macros — integrated custom message handler + split compute functions - `discovery/mod.nr` / `process_message.nr` — merged offchain inbox sync + custom handler dispatch + split compute - `constants.nr` / `constants_tests.nr` — added new domain separators - `Nargo.toml` — added custom_message_contract - `netlify.toml` — merged error code redirects - `auth_contract` — kept v4-next delay value - `note_metadata.nr` — doc comment reformat - `migration_notes.md` — merged migration notes from both sides - Deleted `traits.nr` (v4-next uses `traits/` directory) ClaudeBox log: https://claudebox.work/s/3145d1bd30977c20?run=1 --------- Co-authored-by: Nicolás Venturo <nicolas.venturo@gmail.com>
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This should fix the performance regression from #21438. Marked as a breaking change since some contracts might call
attempt_note_discoverymanually.Fixes F-344.
Fixes #11157