feat(node): update default RPC endpoints to use v10

[thiagodeev]

• Make RPC v0.10.1 the default version for /, /ws, and /rpc endpoints (previously v0.8.1)
• Update SpecVersion() in the v10 handler from 0.10.0 to 0.10.1
• Update JSON-RPC and WebSocket documentation to reflect v0.10.1 as the default, fix stale spec links and example responses

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 75.52%. Comparing base (0e84cab) to head (7c48798).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3497      +/-   ##
==========================================
+ Coverage   75.44%   75.52%   +0.08%     
==========================================
  Files         385      384       -1     
  Lines       34983    34910      -73     
==========================================
- Hits        26394    26367      -27     
+ Misses       6745     6687      -58     
- Partials     1844     1856      +12     

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