* feat(backend): transform legacy messages
* refactor(backend/postgres):remove seqIndex transformation
* feat(backend/db): parse & insert errors_tags
* chore(backend): remove building folder after build
* fix(backend/db):remove message types from filter that do not go through kafka
* fix(backend/assets):use JSException instead of ErrorEvent
* refactor(backend/db):ErrorEvent is no longer a message
* feat(backend/db):insert error tags in clickhouse
* refactor(backend):remove unused LongTask code
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