Update Healer Man server

docs/ROM_GROUP_HEAL_RADIUS_2026-10-04.md

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+# RoM Group Heal radius — 2026-10-04
+
+The generated RuneWaker row for Group Heal (`490281`) says it restores HP to
+"all party members within range of 120." `src/game/romAbilityCatalog.ts`
+already translates that local source distance into `ability.radius: 12` through
+`areaRadius`'s `/ 10` conversion. Its party-scoped heal effect did not carry that
+radius, so `healingRecipientIds` applied its existing 30 m fallback.
+
+The catalog now copies Group Heal's derived ability radius onto only its
+party-scoped heal effect. Player casts in `combatStore.ts` and companion casts
+in `partyRuntime.ts` both pass this effect through the shared
+`healingRecipientIds` resolver. The resolver still requires a living recipient
+and line of sight, and its shared fallback remains unchanged for other spells.
+
+`src/game/romGroupHealRadius.integration.test.ts` checks the catalog mapping,
+the 12 m inclusive boundary and 12.01 m exclusion, living and LOS filtering,
+player and companion execution, and Soul Source's unchanged party-heal
+fallback.
+
+Focused validation passed: `npm test -- --run
+src/game/romGroupHealRadius.integration.test.ts` (3 tests). The npm `pretest`
+hook also ran `loot:generate` and reported 9 bosses, 23 items, and 23 table
+entries. No build or full suite was run by this subprocess. The coordinated
+final build, regression selection and bounded Stockade evidence are recorded
+in [the parent report](ROM_HEALING_PARTY_RANGED_FOLLOWUP_2026-10-04.md).