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feat(obs): add metrics runtime controller status (#3408)

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安正超
2026-06-13 20:48:34 +08:00
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commit 6b1e114b39
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docs/architecture/background-controller-contract.md
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@@ -138,6 +138,20 @@ allocator reclaim loop. Existing backend-specific force handling, idle-streak
logic, metrics emission, and runtime-token shutdown behavior remain owned by the
current loop.
## BGC-006 Metrics Runtime Status And Controller Surface
The third low-risk controller/status surface is metrics runtime. It reports the
service name, observability metrics enablement, collector task count, configured
collector intervals, replication bandwidth zero-tombstone cycle count,
runtime-token cancellation state, and the absence of a dedicated shutdown
handle.
The only allowed worker mutation for this surface is `none`. Reconcile output is
read-only and must not start, stop, resize, wake, or otherwise drive metrics
collector tasks. Existing collector grouping, interval parsing, metrics
emission, replication bandwidth tombstone handling, and runtime-token shutdown
behavior remain owned by the current loops.
## Future Reconcile Rules
Future reconcile work is allowed only after a read-only status snapshot exists.