Feat/real world market locations

[Aharshi3614]

Closes #75

What this does

Adds a new /api/v1/maps/markets/live endpoint that queries the OpenStreetMap
Overpass API to fetch real fish markets, seafood shops, and marketplaces near
a user's GPS location.

New endpoint

GET /api/v1/maps/markets/live?lat={lat}&lng={lng}&radius={meters}

Response:
{
"success": true,
"source": "openstreetmap",
"count": 3,
"markets": [
{ "id": 123, "name": "Fish Market", "lat": 12.34, "lng": 56.78, "vendors": 1, "source": "openstreetmap" }
]
}

Implementation

• Created backend/markets.py with Overpass API integration
• Queries nodes tagged shop=seafood, shop=fish, and fish/seafood marketplaces
• Converts lat/lng + radius to bounding box for Overpass query
• Normalizes response to match existing MarketMapPage.tsx format
• Graceful fallback on timeout or API failure
• Registered router in main.py

Why OpenStreetMap over Google Places

• Free with no API key or billing required
• Global coverage including rural fish markets in India
• Matches the acceptance criteria in the issue

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[jpdevhub]

Can you just upload a ss or video to show this feature in working state to make it merge shortly as i am tired it takes 4+ hr to debug and settle the issue of the onnx update today. Dont forget to pull the latest changes.

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Project	Deployment	Actions	Updated (UTC)
fresh-scan-ai	Ready	Preview, Comment	Jun 6, 2026 10:01am

[Aharshi3614]

Here is the ss of it working!

[jpdevhub]

pull the latest changes and try to fix the backend lint test, if not dont take the pressure much i will be checking it tonight.

[jpdevhub]

The failing job is the Lint step in the CI workflow. The error shows ESLint found 2 linting errors:

1. Unused variable math - This variable is defined but never used in your code
2. Missing semicolon - One or more statements are missing semicolons

Or run this command locally to identify and fix the issues:

npm run lint -- --fix