Fix stale interactive search when running tbots.py without network

[StarrryNight]

Description of the task

Currently, if we run anything on tbots.py without network, it goes into the interactive search page without any items and gets stuck there.
See below:

Screencast.from.2026-08-21.20-50-00.webm

We should make it such that it displays a text like "Network error, please reconnect to a network and try again".
Note that we will need to do bazel clean --expunge before running again with network. Make sure the user knows about this from the command output.

Acceptance criteria

• Add network error text, and instruction to do bazel clean --expunge

Blocked By