fix(sessions): remove session_user from database table #11445

Job	Run time
Filter Changes	7s
Ruff (3.12, ubuntu-latest)	9s
Build GraphQL Schema (3.12, ubuntu-latest)	21s
Build OpenAPI Schema (3.12, ubuntu-latest)	21s
Clean Jupyter notebooks	0s
Compile Protobuf	0s
Phoenix Evals	0s
Integration Tests (3.9, sqlite, ubuntu-latest)	1m 34s
Phoenix OTel	0s
Type Check (3.9, ubuntu-latest)	56s
Integration Tests (3.9, sqlite, windows-latest)	1m 14s
Type Check (3.12, ubuntu-latest)	1m 11s
Type Check Integration Tests (3.9, ubuntu-latest)	39s
Integration Tests (3.9, postgresql, ubuntu-latest)	1m 59s
Type Check Unit Tests (3.9, ubuntu-latest)	1m 0s
Type Check Integration Tests (3.12, ubuntu-latest)	43s
Integration Tests (3.12, sqlite, ubuntu-latest)	1m 57s
Type Check Unit Tests (3.12, ubuntu-latest)	1m 3s
Unit Tests (3.9, ubuntu-latest)	4m 33s
Integration Tests (3.12, sqlite, windows-latest)	2m 35s
Unit Tests (3.9, windows-latest)	3m 36s
Integration Tests (3.12, postgresql, ubuntu-latest)	1m 58s
Unit Tests (3.12, ubuntu-latest)	4m 22s
Unit Tests (3.12, windows-latest)	3m 39s
	33m 57s

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