refactor: extract gMSA exploit token emission logic into standalone helper

[l50]

Key Changes:

• Refactored gMSA exploit token side-effect logic into a dedicated async helper function
• Improved code clarity and testability by removing inline gMSA logic from hash-publish flow
• Added comprehensive unit tests for gMSA exploit token emission behavior

Added:

• Dedicated emit_gmsa_exploit_token_if_gmsa async helper to emit exploit tokens for gMSA accounts incidentally captured via secretsdump or DCSync
• Unit tests covering edge cases (gMSA, regular machine accounts, regular users, case normalization) for the new helper

Changed:

• Hash-publish flow in extract_discoveries now delegates gMSA side-effect to the new helper function, improving modularity and separation of concerns

Removed:

• Inline gMSA exploit token emission logic from the hash-publish branch in result processing, reducing code duplication and complexity

[codecov]

Codecov Report

❌ Patch coverage is 93.75000% with 3 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (feat/more-attack-cov@47a06dd). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
ares-cli/src/orchestrator/result_processing/mod.rs	82.35%	3 Missing ⚠️

Additional details and impacted files

@@                   Coverage Diff                   @@
##             feat/more-attack-cov     #292   +/-   ##
=======================================================
  Coverage                        ?   76.21%           
=======================================================
  Files                           ?      433           
  Lines                           ?   114093           
  Branches                        ?        0           
=======================================================
  Hits                            ?    86954           
  Misses                          ?    27139           
  Partials                        ?        0           

Files with missing lines	Coverage Δ
...es-cli/src/orchestrator/result_processing/tests.rs	100.00% <100.00%> (ø)
ares-cli/src/orchestrator/result_processing/mod.rs	21.34% <82.35%> (ø)

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