Deprecate callback adapter APIs

[ricardo-devis-agullo]

Summary

• normalize legacy storage, metadata, plugin, and HTTP adapter callbacks behind promise-first registry boundaries
• emit process-wide, one-time deprecation warnings while preserving callback behavior on the 0.x line
• use the explicit promise capability from the coordinated node client and retain a safe callback fallback
• preserve adapter receiver/error behavior and handle callback/promise hybrid implementations deterministically
• update v1 migration status and release metadata

Coordinates with opencomponents/oc-client-node#132.

Test plan

• npm run build (11 packages)
• npm test --workspace oc (1013 passing)
• npm test --workspace oc-fastify-server-adapter (14 passing plus integration)
• Mend generated-code security scans (no vulnerabilities found)

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