[Tracking] Make all examples runnable

[zerosnacks]

Currently only a subset of examples is runnable, either due to mock limitations or undefined required API keys.

To easily get the failing cases: cargo run --example 2>&1 | grep -E '^ ' | xargs -n1 cargo run --quiet --example 1>/dev/null

All examples should be made runnable, either errors being handled gracefully and made to work correctly - see: https://github.com/alloy-rs/examples/blob/main/scripts/run.sh