Replace profiles with regen-focused modes

README.md

@@ -70,7 +70,7 @@ The app lets you enter the current state of all equipment and then recommends:
 3. **Overall build summary**
    - Totals base damage and health.
    - Totals effect percentages across all items, mount, and pets.
-   - Shows calculated DPS and a defensive score to compare save slots.
+   - Shows calculated DPS and estimated regen to compare save slots.
 
 ## DPS model
 
@@ -102,14 +102,22 @@ Defensive effect totals use an estimated survivability value based on health, bl
 
 ## Strategy profile
 
-The first version includes an adjustable strategy profile:
+The app includes two adjustable strategy profiles:
 
-- Balanced
-- Damage focused
-- Survivability focused
-- Skill focused
+- Lifesteal: prioritizes DPS and lifesteal-based healing.
+- Regen: prioritizes health and health-regeneration based healing.
 
-Each profile changes effect weights used for recommendations. These weights are intentionally transparent in the code so they can be tuned as better Forge Master formulas become known.
+Each profile changes effect weights used for sacrifice scoring and tie-breaking. DPS-based upgrade recommendations still use the current build math directly.
+
+## Regen metric
+
+The Regen card estimates healing from both sources:
+
+```text
+regen = max health * health regen% + DPS * lifesteal%
+```
+
+The displayed breakdown separates health regen from lifesteal healing.
 
 ## Save slots