fix: implement exponential backoff and throttled scanning to resolve 403 rate limits - #14
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- Added retry logic in api helper for 403/429 and Angel One 'status: false'. - Increased scanner delays to respect 3 req/sec limit. - Enhanced logging with methods and attempts. - Updated tests for 100% coverage and lint compliance. - Updated README with resilience details. Verified with 100% test coverage and full sanity checks.
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Description
This PR addresses intermittent \403 Forbidden\ and rate-limiting issues encountered during historical data fetching, particularly during the high-load morning scan phase.
Key Changes
Verification Results