fix(rust): auto-reconnect on transport errors after server restart

[spetz]

The SDK's send_raw_with_response() only triggered reconnect for a
subset of errors (Disconnected, EmptyResponse, Unauthenticated,
StaleClient). Transport-specific write errors like TcpError,
ConnectionClosed, WebSocketSendError, and QuicError were not in
the list, causing producers and consumers to loop forever on a
dead connection instead of reconnecting.

Added all transport-specific errors to the reconnect match in
TCP, WebSocket, and QUIC clients. TLS connections use the same
error types and code path, so they are also covered.

Integration tests verify both producer and consumer reconnect
across all three stateful transports (TCP, WebSocket, QUIC).

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 68.50%. Comparing base (33bee3d) to head (2709ad8).

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #2880      +/-   ##
============================================
+ Coverage     68.33%   68.50%   +0.16%     
  Complexity      739      739              
============================================
  Files          1053     1053              
  Lines         84763    84763              
  Branches      61297    61307      +10     
============================================
+ Hits          57923    58065     +142     
+ Misses        24468    24312     -156     
- Partials       2372     2386      +14     

Flag	Coverage Δ
csharp	67.43% <ø> (-0.19%)	⬇️
go	6.27% <ø> (ø)
java	54.83% <ø> (ø)
node	92.26% <ø> (-0.04%)	⬇️
python	81.57% <ø> (ø)
rust	70.27% <ø> (+0.23%)	⬆️

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Files with missing lines	Coverage Δ
core/sdk/src/quic/quic_client.rs	72.96% <ø> (+1.75%)	⬆️
core/sdk/src/tcp/tcp_client.rs	72.84% <ø> (+0.73%)	⬆️
core/sdk/src/websocket/websocket_client.rs	71.77% <ø> (+10.76%)	⬆️

... and 27 files with indirect coverage changes

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