feat(go): introduce context.Context to client methods

[chengxilo]

Which issue does this PR close?

N/A

Rationale

Standardizing the Go SDK to support context.Context across all client methods. This allows users to handle timeouts, cancellations

What changed?

The iggcon.Client interface and its TCP implementation have been updated to include context.Context as the first parameter for all API methods.
Correspondingly, all internal command-handling logic now respects context deadlines and cancellations.

Local Execution

• Passed
• Pre-commit hooks ran

AI Usage

1. Claude Sonnet 4.6
2. Add context parameters, initial implementation of test (modifed manually)
3. I read the code and test
4. yes

[codecov]

Codecov Report

❌ Patch coverage is 75.64103% with 38 lines in your changes missing coverage. Please review.
✅ Project coverage is 71.27%. Comparing base (27f0f11) to head (be075d5).

Files with missing lines	Patch %	Lines
foreign/go/samples/consumer/consumer.go	0.00%	11 Missing ⚠️
foreign/go/samples/producer/producer.go	0.00%	11 Missing ⚠️
foreign/go/client/tcp/tcp_core.go	78.94%	7 Missing and 1 partial ⚠️
foreign/go/client/iggy_client.go	60.00%	4 Missing ⚠️
foreign/go/client/tcp/tcp_clients_management.go	50.00%	2 Missing ⚠️
foreign/go/client/tcp/tcp_session_management.go	83.33%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #2964      +/-   ##
============================================
- Coverage     72.71%   71.27%   -1.44%     
  Complexity      943      943              
============================================
  Files          1117     1136      +19     
  Lines         96285    98671    +2386     
  Branches      73485    75827    +2342     
============================================
+ Hits          70014    70329     +315     
- Misses        23725    25656    +1931     
- Partials       2546     2686     +140     

Components	Coverage Δ
Rust Core	71.53% <ø> (-1.93%)	⬇️
Java SDK	62.30% <ø> (ø)
C# SDK	69.40% <ø> (ø)
Python SDK	81.43% <ø> (ø)
Node SDK	91.53% <ø> (ø)
Go SDK	39.30% <75.64%> (+0.32%)	⬆️

Files with missing lines	Coverage Δ
foreign/go/client/tcp/cluster.go	55.55% <100.00%> (ø)
...reign/go/client/tcp/tcp_access_token_management.go	100.00% <100.00%> (ø)
...ign/go/client/tcp/tcp_consumer_group_management.go	96.82% <100.00%> (ø)
foreign/go/client/tcp/tcp_messaging.go	85.18% <100.00%> (ø)
foreign/go/client/tcp/tcp_offset_management.go	100.00% <100.00%> (ø)
foreign/go/client/tcp/tcp_partition_management.go	100.00% <100.00%> (ø)
foreign/go/client/tcp/tcp_stream_management.go	82.85% <100.00%> (ø)
foreign/go/client/tcp/tcp_topic_management.go	81.13% <100.00%> (ø)
foreign/go/client/tcp/tcp_user_management.go	92.00% <100.00%> (ø)
foreign/go/client/tcp/tcp_utilities.go	80.00% <100.00%> (ø)
... and 7 more

... and 225 files with indirect coverage changes

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[github-actions]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed in 7 days if no further activity occurs.

If you need a review, please ensure CI is green and the PR is rebased on the latest master. Don't hesitate to ping the maintainers - either @core on Discord or by mentioning them directly here on the PR.

Thank you for your contribution!

[ryankert01]

Lg, like the idea.