Add SyncConfig superclass for sync configurations

[simolus3]

This adds the abstract SyncConfig class which is extended by the existing SqlSyncRules and the new PrecompiledSyncConfig class. This then refactors places where SqlSyncRules have previously been used to now use the common SyncConfig class.

The idea here is that can keep SqlSyncRules unchanged, and then have a separate but compatible class representing a compiled sync plan generated by the new compiler. In the future, it will also enable bucket storage implementations to store sync plans and return a PrecompiledSyncConfig instance instead of recompiling to SqlSyncRules when a sync plan is available.

Since precompiled sync plans don't have errors, I've moved the errors field to a separate interface (SyncConfigWithErrors).
SyncConfig follows the updated terminology we want to use to describe both sync rules and sync streams going forward.

[changeset-bot]

🦋 Changeset detected

Latest commit: ef22766

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 18 packages

Name	Type
@powersync/service-sync-rules	Minor
@powersync/service-module-postgres-storage	Patch
@powersync/service-module-mongodb-storage	Patch
@powersync/service-core-tests	Patch
@powersync/service-module-postgres	Patch
@powersync/service-module-mongodb	Patch
@powersync/service-core	Patch
@powersync/service-jpgwire	Patch
@powersync/lib-services-framework	Patch
@powersync/service-module-mssql	Patch
@powersync/service-module-mysql	Patch
@powersync/service-schema	Patch
@powersync/service-image	Patch
@powersync/service-module-core	Patch
test-client	Patch
@powersync/lib-service-postgres	Patch
@powersync/service-rsocket-router	Patch
@powersync/lib-service-mongodb	Patch

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[stevensJourney]

Happy from my side :)