Chakra Gradient Portrait: Average Score by Chakra

The traditional 7-chakra meditating-figure illustration, with each circle colored by a single-hue gradient (light = lower, dark = higher) instead of the fixed rainbow -- driven by the real average RAW_SCORE across every instrument whose variables map to that chakra's septenary level (same join as chart 5, collapsed to one row per chakra). Muladhara (Physical Body) has no ring: no variable in this dataset maps to it -- see GoDataX_Human_7_DW.md. The chakra↔level correspondence itself is a symbolic/interpretive mapping (see chakras_model_firebird25.sql), not an empirical finding.