Fix module-level asyncio locks in jail_service

Initialize jail_service locks lazily to avoid import-time event loop binding and add regression tests for lock creation.

Docs/Tasks.md

@@ -313,7 +313,9 @@ Multi-step orchestration in the router violates the zero-business-logic rule. It
 
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-### TASK-10 — Move `GeoInfo → GeoDetail` translation out of the router 🟡
+### TASK-10 — Move `GeoInfo → GeoDetail` translation out of the router ✅
+
+**Status:** Completed ✅
 
 **Where:**
 `backend/app/routers/geo.py` — `async def lookup_ip()`, lines ~85–93:
@@ -344,7 +346,9 @@ Schema translation in the router adds fragility: if either model changes, the ma
 
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-### TASK-11 — Fix `asyncio.Lock()` created at module import time in `jail_service.py` 🟡
+### TASK-11 — Fix `asyncio.Lock()` created at module import time in `jail_service.py` ✅
+
+**Status:** Completed ✅
 
 **Where:**
 `backend/app/services/jail_service.py` — lines 71 and 78: