adr: gradual consumer migration from services to jobs

[0xgleb]

Motivation

ADR-0001 removes EventSourced::Services, so consumers need a reviewable path from inline command-handler side effects to durable jobs before they can take the breaking jobs API. st0x.liquidity has 10 EventSourced impls, st0x.issuance has 5, and issuance has an in-flight EventSourced migration that must not be disturbed.

Closes RAI-923.

Solution

• Add ADR-0002 to record the consumer rollout strategy: extract side effects into consumer-side jobs first, then land one mechanical jobs API bump per repo.
• Use liquidity as the lead repository because it already has conductor::job machinery and more aggregates exercising the pattern.
• Keep issuance extraction separate from its existing EventSourced migration, then apply the same mechanical bump only after extraction is complete.
• Place this PR at the top of the jobs stack because it documents how downstream repos adopt the API introduced below it.

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• adrs/0002-consumer-services-to-jobs-migration.md

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[0xgleb]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
Learn more

• adr: gradual consumer migration from services to jobs #19 👈 (View in Graphite)
• docs: migrate docs to the jobs model #20
• feat: migrate examples to the jobs model #16
• feat: replace EventSourced::Services with Jobs and wire atomic enqueue #15
• feat: add buffered JobQueue and apalis enqueue #14
• feat: add build_supervised_worker macro #13
• feat: job worker #12
• feat: add job module #11
• adr: jobs replace services #8
• fix: sink events as they happen #24 : 1 other dependent PR (#25 )
• master

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[linear-code]

RAI-923

[findolor]

Approved.