v1.5.4

Added

• Added validated sparse hydration 1–4 ratings to update_wellness, with request/response scale metadata and a distinct read-only litres hydrationVolume field.
• Added the full-toolset, read-only compute_training_monotony analyzer for transparent Foster-style daily training-load monotony with bounded athlete-local coverage, raw-load evidence, and explicit refusal/zero-variance semantics.
• Added caller-selected, read-only taper scenarios to propose_annual_training_plan, with bounded duration/load inputs, resolved assumption metadata, and projection-bridge reconciliation.
• Added explicit caller-supplied multisport allocation targets to propose_annual_training_plan, including deterministic Ride/Run/Swim (or other named discipline) load/hour reconciliation and requested weekly session counts without scheduling workouts.

Fixed

• Repaired Gear reads and delete preflight echoes for upstream nullable retirement dates, preserving retired dates without misrepresenting active gear.
• validate_workout now surfaces the rejected unknown structured field in its user-facing diagnostic, preventing invented device-control fields such as press-lap controls from being mistaken for valid workout steps.