feat: define AgenticCallbackInput/Output

[mrh997]

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[codecov]

Codecov Report

❌ Patch coverage is 94.73684% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 79.77%. Comparing base (bc2050b) to head (2a51950).
⚠️ Report is 1 commits behind head on release/agentic_model.

Files with missing lines	Patch %	Lines
components/prompt/agentic_callback_extra.go	88.88%	2 Missing ⚠️

Additional details and impacted files

@@                    Coverage Diff                    @@
##           release/agentic_model     #689      +/-   ##
=========================================================
+ Coverage                  79.68%   79.77%   +0.09%     
=========================================================
  Files                        130      132       +2     
  Lines                      13304    13327      +23     
=========================================================
+ Hits                       10601    10632      +31     
+ Misses                      1843     1835       -8     
  Partials                     860      860              

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