feat(city-map): Add 2D City Map with coordinates and agent presence

- Add migration 013_city_map_coordinates.sql with map coordinates, zones, and agents table
- Add /city/map API endpoint in city-service
- Add /city/agents and /city/agents/online endpoints
- Extend presence aggregator to include agents[] in snapshot
- Add AgentsSource for fetching agent data from DB
- Create CityMap component with interactive room tiles
- Add useCityMap hook for fetching map data
- Update useGlobalPresence to include agents
- Add map/list view toggle on /city page
- Add agent badges to room cards and map tiles

services/usage-engine/Dockerfile

@@ -22,3 +22,4 @@ CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7013"]
 
 
 
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services/usage-engine/README.md

@@ -361,3 +361,4 @@ await publish_nats_event("usage.agent", {
 
 
 
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services/usage-engine/aggregators.py

@@ -237,3 +237,4 @@ class UsageAggregator:
 
 
 
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services/usage-engine/collectors.py

@@ -182,3 +182,4 @@ class UsageCollector:
 
 
 
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services/usage-engine/main.py

@@ -219,3 +219,4 @@ if __name__ == "__main__":
 
 
 
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services/usage-engine/models.py

@@ -159,3 +159,4 @@ class UsageQueryResponse(BaseModel):
 
 
 
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services/usage-engine/requirements.txt

@@ -8,3 +8,4 @@ python-multipart==0.0.6
 
 
 
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