Check for expected ZID when opening scouted links

[oteffahi]

Description

This PR makes scouted connections validate that the peer ZID matches what was advertised in scouting.
It can also be leveraged to improve multilink for client mode by making sure all endpoints belong to the same ZID (to be implemented as part of #2320)

Why is this change needed?

It fixes possible attacks described in #2151

Related Issues

Fixes #2151

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🏷️ Label-Based Checklist

Based on the labels applied to this PR, please complete these additional requirements:

Labels: bug

🐛 Bug Fix Requirements

Since this PR is labeled as a bug fix, please ensure:

• Root cause documented - Explain what caused the bug in the PR description
• Reproduction test added - Test that fails on main branch without the fix
• Test passes with fix - The reproduction test passes with your changes
• Regression prevention - Test will catch if this bug reoccurs in the future
• Fix is minimal - Changes are focused only on fixing the bug
• Related bugs checked - Verified no similar bugs exist in related code

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[codecov]

Codecov Report

❌ Patch coverage is 96.42857% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 74.69%. Comparing base (7b54cab) to head (2c180fb).
⚠️ Report is 10 commits behind head on main.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
zenoh/src/net/runtime/orchestrator.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2579      +/-   ##
==========================================
- Coverage   74.85%   74.69%   -0.17%     
==========================================
  Files         399      399              
  Lines       59401    59564     +163     
==========================================
+ Hits        44467    44489      +22     
- Misses      14934    15075     +141     

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[evshary]

LGTM, but maybe you want to retrigger the CI. Something might go wrong in the CI server.