improve documented scope return values

[brettmc]

TC review suggests that DETACHED and INACTIVE responses need clarification

Fixes #1018

[codecov]

Codecov Report

Merging #1025 (55eea29) into main (1b63a3b) will not change coverage.
The diff coverage is n/a.

❗ Current head 55eea29 differs from pull request most recent head a5966d5. Consider uploading reports for the commit a5966d5 to get more accurate results

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #1025   +/-   ##
=========================================
  Coverage     81.74%   81.74%           
  Complexity     2155     2155           
=========================================
  Files           276      276           
  Lines          6146     6146           
=========================================
  Hits           5024     5024           
  Misses         1122     1122           

Flag	Coverage Δ
7.4	80.37% <ø> (ø)
8.0	81.68% <ø> (ø)
8.1	81.88% <ø> (ø)
8.2	81.88% <ø> (ø)

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Impacted Files	Coverage Δ
src/Context/Context.php	80.95% <ø> (ø)

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