Fix unauthenticated access in get_org_user_access_rbac

[riderx]

Summary (AI generated)

• Added a Supabase migration at 20260308203344_fix_rbac_org_user_access_null_auth_gate.sql that updates public.get_org_user_access_rbac to deny anonymous callers (auth.uid() IS NULL) and use IS DISTINCT FROM in the user-id comparison.
• Added regression coverage in tests/rbac-permissions.test.ts to assert unauthenticated calls now fail with NO_PERMISSION_TO_VIEW_BINDINGS and authenticated self-access remains callable.

Test plan (AI generated)

• Ran bun lint.
• Ran bun lint:backend.
• Ran bunx eslint tests/rbac-permissions.test.ts.

Screenshots (AI generated)

• Backend migration and backend test change only.

Checklist (AI generated)

• My code follows the code style of this project and passes bun run lint:backend.
• My change requires a change to the documentation.
• I have updated the documentation.
• My change has adequate E2E test coverage.
• I have tested my code manually, and I have provided steps how to reproduce my tests.

[coderabbitai]

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 73ce93e6-54c2-46b3-b800-5c1c7d5e4844

📥 Commits

Reviewing files that changed from the base of the PR and between 2af3a08 and 3c4e91f.

📒 Files selected for processing (2)

• supabase/migrations/20260308203344_fix_rbac_org_user_access_null_auth_gate.sql
• tests/rbac-permissions.test.ts

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch riderx/fix-rbac-null-auth

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud