2.0 questions and TODOs

[thibault-martinez]

• ClientInner::sync_nodes uses latest_milestone_timestamp which disappeared. It should use one of the new timestamps but there are 4, which one should be used?
• Account::remove_ended_participation_events uses latest_milestone_timestamp which disappeared. It should use one of the new timestamps but there are 4, which one should be used?
• Do we keep a timestamp in Transaction since OutputMetadata::milestone_timestamp_spent is gone? Instance in build_transaction_from_payload_and_inputs -> No, removed in Remove remaining mentions of milestones #2086
• Can we still filter_outputs by timestamps since OutputMetadata::milestone_timestamp_booked is gone -> Filtered by slot index in Remove remaining mentions of milestones #2086
• RegularTransactionEssenceBuilder needs a no_std way to get the current timestamp in nanoseconds
• The length of a Tag must < 64 bytes ?
• The length of the Data must < 8192 bytes ?
• Temporarily commented out create a signature unlock nodejs test -> Removed as we only have signing on the secret manager now
• Generic Error::InvalidParentCount ?
• Getting output and metadata is now two calls :/ it's not
• Maybe change the variant/response types accordingly
  • https://github.com/iotaledger/iota-sdk/pull/673/files#diff-073dff1d5a4c85cf791e768d2a23818954037855b658c47b61ef20fccc53724aR302
  • https://github.com/iotaledger/iota-sdk/pull/673/files#diff-073dff1d5a4c85cf791e768d2a23818954037855b658c47b61ef20fccc53724aR332
  • https://github.com/iotaledger/iota-sdk/pull/673/files#diff-073dff1d5a4c85cf791e768d2a23818954037855b658c47b61ef20fccc53724aR341
• Should the raw versions return a Vec<u8> or the unpacked type?
• Make it possible to send blocks with types and client/secret manager
• Re-enable bindings tests in CI
• Rename pub alias: AliasSyncOptions when we are done with Account changes (in Single account wallet #1279)
• Disambiguate account_addresses and account_and_nft_addresses
• Update .rent_cost() calculation for staking and delegation outputs Refactor rent cost traits #1065
• Need verify_payload that was removed here ? https://github.com/iotaledger/iota-sdk/pull/925/files#diff-14ec174aa5b23ddab63cf1b181e56078d9bdf0f3c23c7b569362da9f36c5d24bL241
• What's a good value for DEFAULT_EXPIRATION_SLOTS? https://github.com/iotaledger/iota-sdk/pull/965/files#diff-2a6dcee1d0acca23bd06aad8021ac24afded59788d7b8cb421320ce42f11aea5R18
• Should InputSelection's slot index be mandatory? https://github.com/iotaledger/iota-sdk/pull/965/files/d2dd036acc8613fcb302b0eadf2738d9fbb302fa#diff-9d298c39e1a196063ee5c85fcaef36422d32da60698d7343a489411fd173475aR189
• Time-based slot UX? https://github.com/iotaledger/iota-sdk/pull/965/files/3fd9c3a7fa4db321768e7e29329e24a043ba4254#diff-7f2de9b33f3eb7e4eb484fbcef21a5e1cf84d0a4d8b5102f874f506ea328b995R41