chore(eip): add live endpoint test controls

[benliepert]

Summary

• move https://github.com/nominal-io/instrumentation/pull/245 onto the public nominal-io/instro repo
• add env-driven EtherNet/IP integration target selection for simulator vs live PLC endpoint
• add route-path slot, unsigned-type exclusion, and L32E target preset controls
• add eip-live-test plus a DNM local proxy recipe/script for current local NECP/network policy issues

Conflict resolution

• resolved public-repo package/name conflicts by keeping the instro-* package names and adding only the PR's new cpppo dev dependency
• kept public pytest handling in the existing test dependency group

DNM note

This branch currently includes tests/dnm_eip_live_proxy.py and just dnm-eip-live-test as a temporary workaround. Local direct TCP from Rust/Python dev binaries to 10.123.1.199:44818 is blocked by macOS NECP / endpoint security policy, while Apple platform binaries can connect. The proxy exists only so the live PLC tests can be confirmed until that local networking issue is resolved.

Verification

• uv lock --check
• cargo test -p instro-ethernetip-rs --test explicit_session_integration
• uv run --no-cache --reinstall-package instro-ethernetip-python --with-editable . pytest tests/test_ethernetip_bindings.py -q
• just check
• just test

[semgrep-code-nominal-io]

Legal Risk

pycryptodome 3.23.0 was released under the non-standard license, a license that
is currently prohibited by your organization. Merging is blocked until this is resolved.

Recommendation

Reach out to your security team or Semgrep admin to address this issue. In special cases, exceptions may be made for dependencies with violating licenses, however, the general recommendation is to avoid using a dependency under such a license.

[NthTensor]

Test passing locally.