chore: fix docs type import

[ST-DDT]

Fixes the following log output from pnpm run docs:build:

docs/api/ApiIndex.vue?vue&type=script&setup=true&lang.ts (22:9): "APIGroup" is not exported by "docs/api/api-types.ts", imported by "docs/api/ApiIndex.vue?vue&type=script&setup=true&lang.ts".
docs/api/ApiIndex.vue?vue&type=script&setup=true&lang.ts (8:9): "APIGroup" is not exported by "docs/api/api-types.ts", imported by "docs/api/ApiIndex.vue?vue&type=script&setup=true&lang.ts".

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.95%. Comparing base (6d99465) to head (560a7c8).

❗ Current head 560a7c8 differs from pull request most recent head 0ba5f9b

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Additional details and impacted files

@@           Coverage Diff            @@
##             next    #2946    +/-   ##
========================================
  Coverage   99.95%   99.95%            
========================================
  Files        2987     2987            
  Lines      216037   216037            
  Branches      949      601   -348     
========================================
+ Hits       215943   215948     +5     
+ Misses         94       89     -5     

see 2 files with indirect coverage changes