Join provider class observations only when selected-image identity and exact import bindings establish equivalence. Preserve distinct observations and unsupported coverage.
Refs #5607
Retain native-only dispatch workflows without requiring a deep provider profile. Validate exact target, operation, and current reader bindings during open, import, recording, and export; preserve selected deep bindings and caller limits.
Validated public CLI and stdio MCP save/reopen, exact CLI replay, changed-limit cache partitioning, baseline failure and candidate success on an Apple-clang fixture, snapshot lifecycle regressions, typecheck and lint. No target or deep engine execution. Fixes#5529.
morluto