fix(rules): bear's endurance +2 hp per Hit Die via split flat scaling, aid morale scoped to fear-descriptor saves (SRD spells/aid.md), charm person range close per SRD spells/charm-person.md, README synced (29 conditions, acid arrow total cap, mirror image instance-level miss chance)

data/spells/bears_endurance.json

@@ -10,11 +10,18 @@
     {
       "type": "buff",
       "modifiers": [
-        { "target": "fort", "value": 2, "bonus_type": "enhancement" },
-        { "target": "hp", "value": 2, "bonus_type": "enhancement" }
+        { "target": "fort", "value": 2, "bonus_type": "enhancement" }
       ],
       "duration_rounds": 60
+    },
+    {
+      "type": "buff",
+      "modifiers": [
+        { "target": "hp", "value": 0, "bonus_type": "enhancement" }
+      ],
+      "duration_rounds": 60,
+      "scaling_flat": { "amount": 2, "per_levels": 1, "max": 40 }
     }
   ],
-  "description": "The subject gains a +4 enhancement bonus to Constitution, granting +2 to Fortitude saves and +2 hit points per Hit Die (SRD bear's endurance; the hp modifier is informational — the engine has no per-HD hp pool). Will negates (harmless). Duration 10 min/level approximated as 60 rounds."
+  "description": "SRD spells/bear-s-endurance.md: the subject gains a +4 enhancement bonus to Constitution - +2 to Fortitude saves and +2 hit points per Hit Die - for 10 min./level. The engine has no ability-score track, so the +4 Con is encoded as its combat consequences: an unscaled +2 Fortitude enhancement, and a separate hp modifier carrying the per-HD bonus via flat scaling (+2 per level, capped at +40 for level 20; caster level stands in for the target's Hit Dice, and the hp target is informational - the engine has no per-HD hp pool). Will negates (harmless). Duration 10 min/level approximated as 60 rounds."
 }