Upgrade polkadart

[zaelgohary]

Description

• Upgraded Polkadart and dependencies (signer, tfchain).
• Addressed issues arising from the upgrade, including generating new pallets.
• Refactored QueryClient.connect for improved connection handling:
  • Added checks for incomplete connection entries in the static map.
  • Explicitly created new WsProvider instances with autoConnect: false for controlled connection initiation.
  • Standardized connection error handling with proper cleanup on failure.
  • Ensure the provider is ready for RPC communication, along with error handling for readiness failures.

Related Issues

• Retrieve socket connection when clicking Try Again in DAO grid_connect#982
• Upgrade Polkadart in Signer & TFChain #153

Checklist

• Tests included
• Build pass
• Code format
• Screenshots/Video attached (needed for UI changes)

[codecov-commenter]

Codecov Report

❌ Patch coverage is 52.94118% with 16 lines in your changes missing coverage. Please review.
✅ Project coverage is 63.36%. Comparing base (faf00a8) to head (25689c5).
⚠️ Report is 9 commits behind head on development.

Files with missing lines	Patch %	Lines
packages/tfchain_client/lib/src/client.dart	50.00%	15 Missing ⚠️
packages/tfchain_client/test/setup_manager.dart	66.66%	1 Missing ⚠️

Additional details and impacted files

@@               Coverage Diff               @@
##           development     #152      +/-   ##
===============================================
+ Coverage        63.12%   63.36%   +0.23%     
===============================================
  Files               26       26              
  Lines             1177     1201      +24     
===============================================
+ Hits               743      761      +18     
- Misses             434      440       +6     

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