Orchestrate first-time Harness FME onboarding for one application. Confirm an already-enabled FME account/project, then pick one verified non-production environment; if none exists, hand off to an admin, not creating one. Detect the codebase's language and framework, then delegate code integration to instrument-feature-flag — never duplicating its wrapper design or creating the same flag twice. Verify two distinct named-treatment outcomes live through separately approved targeting changes when needed, not just default/fallback responses. Resumes from live state and a non-secret progress summary instead of a checkpoint file; never recreates a flag from uncertain absence or reuses a stale approval. Use when asked to onboard FME for an app, set up feature flags end-to-end, or prove a flag works live. Not for flag creation alone (create-feature-flag), code gating alone (instrument-feature-flag), targeting alone (update-flag-targeting), or metric/experiment setup.