* refactor(setup): take the platform in client configuration readers and the setup write path
ClientRegistrationEnvironment, ClientConfigurationFiles and SupportedClients take a required platform (before defaulted parameters). Setup's configure, inspect and alignment entry points take the setup host's platform and pass it through every layer read, ownership check and the Cordis serializer, which now aliases Windows environment names by the selected platform instead of the running host. Host file operations in ClientConfigPath, ClientConfigurationPublication, JsonFiles and rea mcp add read HOST_PLATFORM explicitly.
* fix(setup): keep private-profile modes on the host when setup selects another platform
* refactor(domain): split error taxonomy into thematic modules
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.
* refactor(runtime): name all silent catch causes without changing diagnostics
Bind cause in every bare catch and unhandled rejection across src/.
Real failures preserve the cause for logging; best-effort cleanup
carries an explicit comment. Caller-visible and Evidence strings are
byte-identical to before.
morluto