[AI] Add Pareto and Jev models

[shridhar-cf]

Summary

Adds catalog entries for:

• Unbiased Pareto (unbiased/pareto)
• TypeSafe Jev (typesafe/jev)

The Stealth Union Alpha entry is not present on production, so no deletion is represented in this PR.

Validation

• Parsed both catalog files as JSON
• Confirmed both files pass Prettier

[cloudflare-docs-bot]

Review

⚠️ 1 warning found in commit c60890d.

👉 Fix in your agent 👈

Fix the following review findings in PR #33516 (https://github.com/cloudflare/cloudflare-docs/pull/33516).

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---

## Code Review

### Warnings (1)

#### CR-72b10a093ebb · Pricing inconsistent with example costs
- **File:** `src/content/catalog-models/unbiased-pareto.json` line 18
- **Issue:** The declared pricing ($2.5 input / $7.5 output per 1M, lines 18-19 and 332-333) cannot produce the `usage.cost` values in the examples, which are rendered on the model page next to the price. E.g. Example 1 (11 prompt + 5 completion tokens, cost 0.000045) would cost 0.000065 at 2.5/7.5; checking all five examples, every cost exactly matches $1.25/$6.25 rates (the same rates the sibling stealth/union-alpha entry was captured under), so the examples are stale relative to the newly set price.
- **Fix:** Confirm the actual Pareto rates and either correct the pricing fields or regenerate the example raw responses so the `usage.cost` values reconcile with the listed price.

Code Review

This code review is in beta and may not always be helpful — use your judgment.

Warnings (1)

File

Issue

catalog-models/unbiased-pareto.json line 18

Pricing inconsistent with example costs — The declared pricing ($2.5 input / $7.5 output per 1M, lines 18-19 and 332-333) cannot produce the usage.cost values in the examples, which are rendered on the model page next to the price. E.g. Example 1 (11 prompt + 5 completion tokens, cost 0.000045) would cost 0.000065 at 2.5/7.5; checking all five examples, every cost exactly matches $1.25/$6.25 rates (the same rates the sibling stealth/union-alpha entry was captured under), so the examples are stale relative to the newly set price. Fix: Confirm the actual Pareto rates and either correct the pricing fields or regenerate the example raw responses so the usage.cost values reconcile with the listed price.

Conventions

_{No convention issues found.}

Style Guide Review

_{No style-guide issues found.}

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