init

app/services/capture.py

@@ -0,0 +1,23 @@
+"""Zone capture logic — detects overlap and transfers territory.
+
+TODO: Implement in Phase 3 (zone capture mechanics).
+"""
+
+import uuid
+from sqlmodel import Session
+
+
+def process_captures(
+    attacker_zone_id: uuid.UUID,
+    attacker_user_id: uuid.UUID,
+    session: Session,
+) -> list[dict]:
+    """Check if the new zone overlaps any friend zones and apply capture rules.
+
+    Returns a list of capture events (zone_id, victim_id, captured_area).
+
+    Not yet implemented — returns empty list for MVP Phase 1.
+    """
+    # Phase 3: query friend zones, compute ST_Intersection with Shapely,
+    # apply defense level rules, update ownership, create ZoneHistory records.
+    return []