Dev

[pmjanus]

Fixes #487 #816 #858

Description

This PR merges three previously validated features from development into master:

1. Contract Parameter Enhancement (!#863):

   • Added support for tuple and tuple array parameters in contract interactions
   • Implemented JSON array format for complex parameter input
   • Users can now interact with contracts requiring structured data types

2. Contract Cache Optimization (!#850):

   • Improved performance by fetching contract metadata exclusively from cache
   • Delegated cache population responsibility to indexer API
   • Eliminated redundant API calls in holders view

3. Address Page UX Improvements (!#859):

   • Implemented immediate visual feedback on address page loads
   • Added loading skeletons and spinners for better user experience
   • Optimized component layout for progressive content loading

Test scenarios

1. Contract Parameter Testing

1. Navigate to Example Contract in Write section
2. Test tuple parameter input using array format:

[123, "0xA1F2aDC12cdB069406BFe51f31980324d757317C", false]

3. Verify successful contract interaction with complex parameters

2. Cache Implementation Testing

1. Visit USDT holders page at: https://deploy-preview-850--dev-mainnet-teloscan.netlify.app/address/0x975Ed13fa16857E83e7C493C7741D556eaaD4A3f
2. Open developer tools (F12) -> Network tab
3. Clear network logs
4. Navigate to Holders tab
5. Verify no additional queries for address metadata
6. Test through multiple pages to confirm no extra queries

3. Address Page Responsiveness

1. Visit any address page
2. Confirm immediate page structure loading
3. Verify loading spinner appears next to address while determining type
4. Check that "more-info" cards properly utilize available space during loading
5. Validate skeleton loading patterns across all sections

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