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/alembic/versions/f7a8b9c0d1e2_add_naming_scheme_to_genlockes.py

@@ -0,0 +1,31 @@
+"""add naming_scheme to genlockes
+
+Revision ID: f7a8b9c0d1e2
+Revises: e5f70a1ca323
+Create Date: 2026-02-14 00:00:00.000000
+
+"""
+
+from collections.abc import Sequence
+
+import sqlalchemy as sa
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision: str = "f7a8b9c0d1e2"
+down_revision: str | Sequence[str] | None = "e5f70a1ca323"
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+
+def upgrade() -> None:
+    """Add naming_scheme column to genlockes table."""
+    op.add_column(
+        "genlockes",
+        sa.Column("naming_scheme", sa.String(50), nullable=True),
+    )
+
+
+def downgrade() -> None:
+    """Remove naming_scheme column from genlockes table."""
+    op.drop_column("genlockes", "naming_scheme")