Separate extraction/inventory and caller-selectable publication budgets in the shared firmware workflow. Preserve phase, selected timeout, verified progress, caller cancellation identity and committed observations through cleanup. Enforce monotonic expiry even before timer callbacks run.
Validated with 101 targeted tests, full static checks, documentation checks and real OpenWrt CLI/MCP workflows with digest and cleanup verification. Existing main CI failures are documented separately.
Fixes#4176.
Retain the primary error through cleanup composition and resolve its presentation only after live ownership confirms release. Preserve historical diagnostics separately from producer facts.
Validate domain primary types, nested owners, denied retry and late observations; exercise public CLI and MCP projection plus firmware descriptor retry. Focused tests, source controls, static checks and docs pass. Native providers were not verified.
Refs: #4628
Reuse canonical artifact chunk reads across hash, snapshot, range and publication, leaving cleanup to the exact owner. Let the reader own cancellation, preserve same-read physical failures, and classify growth past the input allowance through the existing typed admission failure.
Validation: 46 focused tests across four files, docs checks and five conformance tests. Native file IO with controlled faults; no Linux firmware engines verified. Shared post-cleanup error projection remains tracked in #4628. Refs #4619, #4475
Nitin Kushwaha