feat(adk): replace forced tool call with response_format fallback for…

[N3kox]

… topic selection

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[codecov]

Codecov Report

❌ Patch coverage is 74.11765% with 44 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (alpha/10@a4afa59). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
adk/middlewares/automemory/automemory.go	71.26%	22 Missing and 3 partials ⚠️
adk/middlewares/automemory/utils.go	73.97%	17 Missing and 2 partials ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             alpha/10    #1145   +/-   ##
===========================================
  Coverage            ?   82.05%           
===========================================
  Files               ?      194           
  Lines               ?    31343           
  Branches            ?        0           
===========================================
  Hits                ?    25719           
  Misses              ?     3810           
  Partials            ?     1814           

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