fix(run): include max tokens in dry-run estimates

[OnlyYu1996]

Summary

• Reject cortex run --max-tokens 0 at CLI parse time.
• Include max_response and total_with_max_response in dry-run JSON estimates.
• Print Max response and Input + response in text dry-run output when --max-tokens is provided.
• Update a stale test import so the package test target compiles on current main.

Fixes PlatformNetwork/bounty-challenge#53234

Verification

• cargo fmt --package cortex-cli --check
• cargo test --package cortex-cli run_cmd::execution::tests -- --nocapture
• cargo check --package cortex-cli --lib
• git diff --check

[greptile-apps]

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