fix: Remove logic for granting CAIP-25 permissions

[Mrtenz]

This logic may not be needed. Pending verification.

---

Note

Removes automatic granting of endowment:caip25 and related network lookups, updates default dynamic permission to endowment:caip25, and adjusts tests accordingly.

• Core (SnapController.ts):
  • Remove logic that auto-added endowment:caip25 based on endowment:ethereum-provider (and associated network client lookups); permissions are now granted as requested without modification.
  • Drop NetworkController:getNetworkClientById and SelectedNetworkController:getNetworkClientIdForDomain from allowed actions; remove hex/hexToNumber usage.
  • Change default dynamicPermissions from eth_accounts to endowment:caip25.
• Tests (SnapController.test.tsx):
  • Delete tests asserting auto-grant of endowment:caip25 on install/update; keep install/update flows without CAIP-25 injection.
  • Update dynamic permissions revocation test to use endowment:caip25 instead of eth_accounts.

^{Written by Cursor Bugbot for commit 9800313. This will update automatically on new commits. Configure here.}

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.27%. Comparing base (e5f394c) to head (9800313).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3723      +/-   ##
==========================================
- Coverage   98.28%   98.27%   -0.01%     
==========================================
  Files         418      418              
  Lines       12152    12146       -6     
  Branches     1876     1875       -1     
==========================================
- Hits        11943    11937       -6     
  Misses        209      209              

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[FrederikBolding]

Need to adapt the unit test that used this

[Mrtenz]

Done!