H-392: Use a table instead of a view for entity type inheritance

[TimDiekmann]

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🚢 Has this modified a publishable library?

This PR:

• [x] does not modify any publishable blocks or libraries, or modifications do not need publishing

📜 Does this require a change to the docs?

The changes in this PR:

• [x] are internal and do not require a docs change

🕸️ Does this require a change to the Turbo Graph?

The changes in this PR:

• [x] do not affect the execution graph

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (5fb489c) 29.01% compared to head (8efaf13) 28.17%. Report is 276 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3552      +/-   ##
==========================================
- Coverage   29.01%   28.17%   -0.85%     
==========================================
  Files         258      258              
  Lines       12606    12886     +280     
  Branches      779      836      +57     
==========================================
- Hits         3658     3631      -27     
- Misses       8931     9238     +307     
  Partials       17       17              

Flag	Coverage Δ
apps.hash-api	0.00% <ø> (ø)
local.hash-backend-utils	18.69% <ø> (ø)
local.hash-subgraph	23.35% <ø> (ø)

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