Transfer canonical leases through opening, session and storage boundaries. Keep response deadlines separate from actual completion, drain independent owners, and join late opening failure cleanup before confirming recovery. Remove error copies in favor of canonical primary/cleanup composition.
Preserve exact caller reasons, completed observations and independent physical failures through final-close cancellation and retry. Closes#4869.
Validation:155 tests pass across15 focused source, service, CLI subprocess and MCP files; static/docs/discovery1551 pass. Two original-revision controls fail as expected. Bounded authored-session public CLI comparison preserves equivalent Evidence and1282 reply token estimates; no real Chromium qualification or forced-termination recovery claim (#4659).
Move each error family out of domain/errors.ts into its own module
(base, core, provider selection/adapter, browser observation,
artifact, evidence, unknown registry, hopper, configuration) and
relocate AnalysisErrorProjection to analysisErrorProjection.
Migrate all 162 importers to the owning modules and delete
errors.ts. No re-export shims; behavior is unchanged.
morluto