fix(ui): show allocated block resources

[mikemikimike]

Summary

• Show the resources allocated to the run's block in the runs and jobs lists.
• Keep the provisioning instance resources as a fallback for older submissions without runtime offer data.
• Add regression coverage for both the allocated-block path and the legacy fallback.

Validation

• npx jest --config jest.local.config.cjs --runInBand src/pages/Runs/Details/Jobs/List/helpers.test.ts (2 passed; isolated config disables the repository's unavailable Enzyme setup)
• Targeted ESLint passed for changed TypeScript files.
• Prettier check passed for changed files.
• npx tsc --noEmit remains blocked by pre-existing frontend type errors unrelated to this change.
• git diff --check passed.

Closes #4187