Add naming scheme support for genlockes with lineage-aware suggestions (#20)

Genlockes can now select a naming scheme at creation time, which is
automatically applied to every leg's run. When catching a pokemon whose
evolution family appeared in a previous leg, the system suggests the
original nickname with a roman numeral suffix (e.g., "Heracles II").

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Reviewed-on: TheFurya/nuzlocke-tracker#20
Co-authored-by: Julian Tabel <juliantabel.jt@gmail.com>
Co-committed-by: Julian Tabel <juliantabel.jt@gmail.com>

backend/src/app/api/genlockes.py

@@ -458,6 +458,7 @@ async def create_genlocke(
         status="active",
         genlocke_rules=data.genlocke_rules,
         nuzlocke_rules=data.nuzlocke_rules,
+        naming_scheme=data.naming_scheme,
     )
     session.add(genlocke)
     await session.flush()  # get genlocke.id
@@ -480,6 +481,7 @@ async def create_genlocke(
         name=f"{data.name.strip()} \u2014 Leg 1",
         status="active",
         rules=data.nuzlocke_rules,
+        naming_scheme=data.naming_scheme,
     )
     session.add(first_run)
     await session.flush()  # get first_run.id
@@ -653,6 +655,7 @@ async def advance_leg(
         name=f"{genlocke.name} \u2014 Leg {next_leg.leg_order}",
         status="active",
         rules=genlocke.nuzlocke_rules,
+        naming_scheme=genlocke.naming_scheme,
     )
     session.add(new_run)
     await session.flush()