Merge feature/obfuscator

[gildas]

Feature obfuscator. Do not delete the feature branch after the merge.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.27%. Comparing base (120fe87) to head (8f9d70e).
⚠️ Report is 22 commits behind head on dev.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev      #33      +/-   ##
==========================================
+ Coverage   95.15%   95.27%   +0.11%     
==========================================
  Files          30       31       +1     
  Lines        1239     1269      +30     
==========================================
+ Hits         1179     1209      +30     
  Misses         59       59              
  Partials        1        1              

Flag	Coverage Δ
unittests	95.27% <100.00%> (+0.11%)	⬆️

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[Copilot]

Pull request overview

Adds an obfuscation (reversible encryption) capability to the logger package so sensitive values can be logged in encrypted form and later recovered with the same key.

Changes:

• Introduces (*Logger).Obfuscate / (*Logger).Unobfuscate implemented with AEAD (GCM) and a !ENC!:{...} marker.
• Extends logger.Create(...) to accept a cipher.Block and propagate it to child loggers.
• Adds an obfuscator test suite and documents usage in the README (plus dependency bumps).

Reviewed changes

Copilot reviewed 5 out of 6 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
obfuscator.go	Implements obfuscation/unobfuscation using cipher.Block + GCM and a marker-based encoding format.
logger.go	Adds storage/propagation of the obfuscation key and wires it into Create and child logger creation paths.
obfuscator_test.go	Adds test coverage for obfuscation, missing key behavior, and failure scenarios.
README.md	Documents the new obfuscation feature and how to use it.
go.mod / go.sum	Bumps a few dependencies as part of the merge.

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[Copilot]

The example calls logger.Obfuscate(...), but Obfuscate is a method on *Logger. Update the snippet to call it on the log instance created above.

[Copilot]

The example calls logger.Unobfuscate(...) and ignores the returned error, but Unobfuscate is a *Logger method returning (string, error). Update the snippet to call log.Unobfuscate(...) and handle/propagate the error.

Suggested change

	fmt.Printf("Here is the data: %s", logger.Unobfuscate(obfuscatedData))
	data, err := log.Unobfuscate(obfuscatedData)
	if err != nil {
	fmt.Printf("failed to unobfuscate data: %v", err)
	} else {
	fmt.Printf("Here is the data: %s", data)
	}

[gildas]

@copilot review again

[Copilot]

@gildas I've opened a new pull request, #34, to work on those changes. Once the pull request is ready, I'll request review from you.