Feat: add option to configure logging level and format

[kobiebotha]

Why

Solves https://discord.com/channels/1138230179878154300/1463146725832265926

What

• Moved logger configuration responsibility into service-core
• Keep logger primitives in lib-services
• Single shared definition of LoggingConfig in service-types.

Testing performed

• Tested config permutations by hand using both yaml config and env vars
• Ran affected automated tests:

pnpm --filter @powersync/lib-services-framework test --run
pnpm --filter @powersync/service-core test --run

[changeset-bot]

🦋 Changeset detected

Latest commit: 45a82ae

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

This PR includes changesets to release 17 packages

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

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[simolus3]

Note that this needs a changeset entry covering affected packages since service-core depends on changes in lib-services. IIRC, not adding one might lead to us deploying services with inconsistent package versions (which causes confusing crashes).