docs: Create overview of core SDK architecture

[scouten-adobe]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 77.92%. Comparing base (fca7422) to head (de23278).
⚠️ Report is 9 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1585   +/-   ##
=======================================
  Coverage   77.92%   77.92%           
=======================================
  Files         165      165           
  Lines       41346    41346           
=======================================
  Hits        32219    32219           
  Misses       9127     9127           

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[codspeed-hq]

CodSpeed Performance Report

Merging #1585 will not alter performance

_{Comparing internal-architecture-diagram (de23278) with main (fca7422)}

Summary

✅ 16 untouched
⏩ 2 skipped¹

Footnotes

1. 2 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

[scouten-adobe]

Closing in favor of #1599.