Add model and effort flags to review commands

[axisrow]

Propagate --model and --effort to /codex:review and /codex:adversarial-review, matching the existing task behavior.

Validation:

• node --test tests/commands.test.mjs
• node --test tests/runtime.test.mjs

[axisrow]

Closing this as the wrong fix.

The approach here — forwarding model/effort into the review/start RPC params — doesn't actually make the flags work. Probing the real app-server (codex-cli 0.144.1), review/start accepts model/effort without error but the Rust side drops unknown fields (serde, no deny_unknown_fields), and ReviewStartParams has no model/effort field in the first place (TS2353 on a direct type-probe). The model field is inert on the server across thread/start/turn/start/review/start — the effective override is -c model="…" at spawn time (#408), not an RPC field.

For effort: adversarial-review can be fixed via turn/start (its params include effort) per #476; native review has no effort field in the protocol, so it's not fixable on the plugin side without the #408-style spawn override.

Left detailed notes + the server-probe evidence on #476 and #408. Folding into those instead of keeping a separate incompatible change open.