feat(rules): restrict bless to allies in a 50-ft burst

SRD spells/bless.md: 'The caster and all allies within a 50-ft. burst,
centered on the caster'. Add an AreaEffect.targets filter (all/allies/
enemies) applied where area creatures are collected; bless.json now
declares radius_ft 50 and targets allies (the caster included).

src/pf1e_simulator/combat.py

@@ -6499,20 +6499,31 @@ class CombatEngine:
         caster's anchor cell and opens toward ``aim`` (PF1e CRB "Aiming a
         Spell" — see ``areas.py``); a creature is affected when ANY of its
         occupied cells lies inside the template.
+
+        ``effect.targets`` restricts the selection (SRD bless/bane bursts):
+        "allies" keeps only creatures on the caster's side (the caster
+        included — SRD bless "The caster and all allies"), "enemies" keeps
+        only the opposite side, "all" keeps everyone.
         """
         span_cells = effect.radius_ft // _SQUARE_FT
         if effect.shape == "burst":
-            return self._creatures_in_range(aim, span_cells)
-        origin = caster.pos
-        if effect.shape == "cone":
-            cells = cone_cells(self._grid, origin, aim, span_cells)
+            affected = self._creatures_in_range(aim, span_cells)
         else:
-            cells = line_cells(self._grid, origin, aim, span_cells)
-        return [
-            state
-            for state in self._states
-            if state.active and state.occupied_cells() & cells
-        ]
+            origin = caster.pos
+            if effect.shape == "cone":
+                cells = cone_cells(self._grid, origin, aim, span_cells)
+            else:
+                cells = line_cells(self._grid, origin, aim, span_cells)
+            affected = [
+                state
+                for state in self._states
+                if state.active and state.occupied_cells() & cells
+            ]
+        if effect.targets == "allies":
+            return [s for s in affected if s.side == caster.side]
+        if effect.targets == "enemies":
+            return [s for s in affected if s.side != caster.side]
+        return affected
 
     def _creatures_in_range(
         self, center: tuple[int, int], radius_cells: int