ref(core): Make store and destination more ergonomic

[iambriccardo]

Summary

• Rename the cross-store cleanup capability from CleanupStore to TableLifecycleStore and move it under store::lifecycle.
• Consolidate repeated runtime trait bounds behind facade traits in store::capabilities and destination::capabilities: SharedStateStore, DestinationStore, PipelineStore, and PipelineDestination.
• Update pipeline, replicator, destination implementations, benchmarks, tests, and docs to use the new capability names and module layout.
• Document rustdoc link style in AGENTS.md and align public extension-point docs with the renamed store lifecycle trait.

[coveralls]

coverage: 73.152% (+0.02%) from 73.136% — cleanup-a-few-things into main