FIX: report Unicode tag presence correctly when decoding - #2552
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Sylvester Kaczmarek (sylvesterkaczmarek) wants to merge 2 commits into
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Description
Fixes the logging-only Unicode-tag detection defect described in #2539.
AsciiSmugglerConverter.decode_messagecurrently infers whether hidden Unicode tags were present by comparing decoded and input string lengths. This can report that no hidden tags were found for a fully hidden payload.This change tracks whether a Unicode Tag code point was actually encountered and uses that signal for logging.
Tests
Adds regression coverage for fully hidden payloads and ordinary plaintext.