88c035c98e
`./.dsh-tmp-profile/config.json` was the web config-tree boot's user-config plane, but never gained a writer: no production code created or edited it, no test exercised it, and no user documentation named it. The fields it mapped have owners elsewhere — provider/model are the api-gateway's default route and persistenceRoot is an assembly fact, while typed user preferences live in $DSH_HOME/settings.yaml. Delete PROFILE_DIR, PROFILE_FILE, ProfileMapping, PROFILE_MAPPINGS, and readProfile() with the patch source that consumed them. AppCLIEntry now composes patches from CLI flags and the resolved frontend distIndex only; the surrounding layers are unchanged. A file on disk is ignored completely — no migration, replacement format, or deprecation diagnostic, per the pre-release stance.