Somatic Field: 3D body playback of experience instances

[clarknoah]

Summary

• New VisualizationEnum.SomaticField review visualization: an echarts-gl 3D body (parametric point cloud) through which the session's manifestations arise and pass over session time — play/pause/scrub/speed controls, colour = valence, size = input duration, passed events leave a faint residue.
• Somatic placement resolves in confidence order: structured Body Location values → free-text parsing ("pain in chest" → Chest) → per-experience-type defaults. somaticMap.ts is the editable somatic ontology — region anchors, text aliases, and the ExperienceType → region map (seeded defaults for all ~60 types, awaiting Noah's per-type directions).
• Registered through the standard machinery: server enum + regenerated types, VISUALIZATION_META (requires: non-TET), default review order, enum map, renderer. Session types can pin/exclude it via reviewVisualizations.
• SomaticFieldDemo: zero-data, autoplaying, slowly-orbiting loop for public surfaces — drop <SomaticFieldDemo /> into SplashPageV4 when ready.

Note: client/src/gql/graphql.ts got the enum value added surgically rather than via codegen — codegen introspects the running dev server, which would have pulled uncommitted in-flight schema into this branch. Next codegen run against an updated server produces the identical line.

Test plan

• tsc server + client, vite production build, standardization audit — all green
• Eyeballed via dev server + Playwright on a public session: body renders, 16/16 events placed at Head (type default), playback/scrub/replay work, no new console errors
• Review on a 4th & 5th Fetter Self-Inquiry session (structured Body Location data) when logged in
• Give per-experience-type somatic directions; encode in somaticMap.ts

🤖 Generated with Claude Code