Add cot to table

[ahuang11]

Previously, it would take a detour to select the right table

1. select the wrong table
2. require a join
3. don't perform a join; just use the supposed-to-be-joined table

Before:

Now, it directly reasons out the proper table:

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 3 lines in your changes missing coverage. Please review.

Project coverage is 56.02%. Comparing base (905ac36) to head (01780b9).
Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
lumen/ai/agents.py	0.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #709      +/-   ##
==========================================
- Coverage   56.02%   56.02%   -0.01%     
==========================================
  Files          98       98              
  Lines       11828    11829       +1     
==========================================
  Hits         6627     6627              
- Misses       5201     5202       +1     

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