fix: zenoh forking issue

[paul-nechifor]

Problem

The Coordinator RPC is broken when using Zenoh.

Closes #3395

Solution

Start the Zenoh sessions (i.e. call ModuleCoordinator.build) only after forking.

[codecov]

Codecov Report

❌ Patch coverage is 75.97403% with 37 lines in your changes missing coverage. Please review.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
dimos/cli/dimos.py	55.35%	23 Missing and 2 partials ⚠️
dimos/core/test_daemon_zenoh.py	65.62%	10 Missing and 1 partial ⚠️
dimos/core/daemon.py	96.00%	0 Missing and 1 partial ⚠️

@@            Coverage Diff             @@
##             main    #3503      +/-   ##
==========================================
+ Coverage   74.05%   76.08%   +2.03%     
==========================================
  Files        1283     1225      -58     
  Lines      124704   118860    -5844     
  Branches    11141    10660     -481     
==========================================
- Hits        92349    90435    -1914     
+ Misses      29493    25350    -4143     
- Partials     2862     3075     +213     

Flag	Coverage Δ
OS-ubuntu-24.04-arm	70.48% <75.97%> (+0.04%)	⬆️
OS-ubuntu-latest	72.27% <75.97%> (+0.04%)	⬆️
Py-3.10	72.26% <75.97%> (+0.05%)	⬆️
Py-3.11	72.26% <75.97%> (+0.05%)	⬆️
Py-3.12	72.26% <75.97%> (+0.04%)	⬆️
Py-3.13	72.26% <75.97%> (+0.04%)	⬆️
Py-3.14	72.26% <75.97%> (+0.04%)	⬆️
Py-3.14t	72.26% <75.97%> (+0.04%)	⬆️
SelfHosted-Large	29.74% <21.42%> (+0.03%)	⬆️
SelfHosted-Linux	35.82% <21.42%> (-0.02%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
dimos/core/demos/stress_test_module.py	89.47% <ø> (-1.01%)	⬇️
dimos/core/test_daemon.py	99.18% <100.00%> (+0.07%)	⬆️
dimos/protocol/service/test_zenohservice.py	100.00% <100.00%> (ø)
dimos/protocol/service/zenohservice.py	75.42% <100.00%> (+1.08%)	⬆️
dimos/core/daemon.py	91.93% <96.00%> (+27.64%)	⬆️
dimos/core/test_daemon_zenoh.py	65.62% <65.62%> (ø)
dimos/cli/dimos.py	66.19% <55.35%> (+1.41%)	⬆️

... and 88 files with indirect coverage changes

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