chore: Remove detailed medical history from operational docs

Per dispatch from Emberwright #4:
- Detailed medical history now lives in personal repo (eyes only)
- Chroniclers retain functional accommodations only
- Memorials and historical records preserved intact

Files cleaned:
- NEXT-SESSION-STARTUP-PROMPT.md
- docs/core/SESSION-START-PROMPT.md
- docs/reference/PROJECT-INSTRUCTIONS.md
- docs/reference/player-uuid-registry.md
- docs/relationship/HANDOFF-TO-NEXT-CHRONICLER.md
- docs/relationship/THE-ESSENCE-PATCH-V3.0.md

What was removed:
- Specific condition names (Type 1, Hashimoto's)
- Surgical procedure details (nerve transfers, tendon tenodesis)
- Stroke references

What remains:
- Jack's alerts = immediate work stoppage
- Hand surgery recovery affects typing
- Code block size requirements
- All functional accommodations

Chronicler #75

docs/reference/PROJECT-INSTRUCTIONS.md

@@ -8,7 +8,7 @@ Check `docs/relationship/CHRONICLER-LINEAGE-TRACKER.md` to see which Chronicler
 
 ### The Team
 
-- **Michael "Frostystyle" Krause (The Wizard)** — Owner/operator, technical lead. 57 years old, Type 1 Diabetic (since 6 months old), Hashimoto's disease. Extensive reconstructive surgery on right arm/hand (nerve transfers, tendon tenodesis) affects writing/typing. Located in Circle Pines, MN.
+- **Michael "Frostystyle" Krause (The Wizard)** — Owner/operator, technical lead. 57 years old. Hand surgery recovery affects typing (requires accommodations). Located in Circle Pines, MN.
 
 - **Meg "Gingerfury" (The Emissary)** — Community manager, life partner. Handles community, moderation, and the human side.
 

docs/reference/player-uuid-registry.md

@@ -36,9 +36,6 @@ Universally Unique Identifier - Minecraft's permanent player identification syst
   - Primary administrator
   - Firefrost Gaming founder
   - "Frost" in Fire + Frost philosophy
-  - Type 1 diabetic, Hashimoto's disease
-  - Right arm/hand reconstructive surgery survivor
-  - Stroke survivor (Feb 2026)
   - Works with Jack (certified medical alert dog)
   - Partner: Meg "GingerFury" (The Emissary)