jschoubben
4b47e88369
The runner's own writer of its consumer's oldest unacknowledged delivery is replaced by mesh-sdk's consumer ledger: each message the hub hands a handler is noted delivered, and applied when the handler acknowledges or ends it; one it asks again stays unacknowledged. The key form is the same, a key per consumer by its name in the state consumers. A runner that heard no event yet is healthy. Builds: design 47 G §76, §468, §495; lead answers A-166, A-176 Claude-Session: https://claude.ai/code/session_01NcbgfGKaxw984XyAPfLm4h