add schema for DDM

[roperzh]

#17405

Checklist for submitter

If some of the following don't apply, delete the relevant line.

• Input data is properly validated, SELECT * is avoided, SQL injection is prevented (using placeholders for values in statements)
• If database migrations are included, checked table schema to confirm autoupdate
• For database migrations:
  • Checked schema for all modified table for columns that will auto-update timestamps during migration.
  • Confirmed that updating the timestamps is acceptable, and will not cause unwanted side effects.
• Manual QA for all new/changed functionality

[codecov]

Codecov Report

Attention: Patch coverage is 84.76821% with 23 lines in your changes are missing coverage. Please review.

Project coverage is 65.63%. Comparing base (01dfce5) to head (fe50879).
Report is 1 commits behind head on feat-macos-ddm.

Files	Patch %	Lines
...l/migrations/tables/20240314150853_AddDDMTables.go	84.76%	16 Missing and 7 partials ⚠️

Additional details and impacted files

@@                Coverage Diff                 @@
##           feat-macos-ddm   #17636      +/-   ##
==================================================
+ Coverage           65.60%   65.63%   +0.02%     
==================================================
  Files                1193     1194       +1     
  Lines              108028   108179     +151     
  Branches             2574     2574              
==================================================
+ Hits                70875    71003     +128     
- Misses              31770    31786      +16     
- Partials             5383     5390       +7     

Flag	Coverage Δ
backend	66.63% <84.76%> (+0.02%)	⬆️

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[jahzielv]

send it!