fix(config): preserve runtime objects in blueprint configuration

[Nabla7]

What changed

Preserve explicitly configured callable and opaque Python values after Pydantic validation instead of serializing them through model_dump().

A regression test sends a callable dataclass through blueprint parsing, pickle worker serialization, and Pydantic reconstruction.

Root cause

BlueprintConfigParser validated module configuration correctly, then model_dump(mode="python") converted nested dataclasses into plain dictionaries. Rerun callbacks and other runtime objects therefore stopped being callable after crossing the worker boundary.

Validation

• pytest dimos/core/coordination/blueprint_config/test_parser.py -q
• 28 tests passed
• Repository pre-commit hooks passed

[codecov]

Codecov Report

❌ Patch coverage is 93.75000% with 2 lines in your changes missing coverage. Please review.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
dimos/core/coordination/blueprint_config/values.py	87.50%	1 Missing and 1 partial ⚠️

@@           Coverage Diff           @@
##             main    #3373   +/-   ##
=======================================
  Coverage   75.80%   75.80%           
=======================================
  Files        1172     1172           
  Lines      113568   113599   +31     
  Branches    10258    10264    +6     
=======================================
+ Hits        86090    86114   +24     
- Misses      24492    24495    +3     
- Partials     2986     2990    +4     

Flag	Coverage Δ
OS-ubuntu-24.04-arm	69.94% <93.75%> (+<0.01%)	⬆️
OS-ubuntu-latest	71.93% <93.75%> (+<0.01%)	⬆️
Py-3.10	71.93% <93.75%> (+<0.01%)	⬆️
Py-3.11	71.93% <93.75%> (-0.01%)	⬇️
Py-3.12	71.93% <93.75%> (-0.01%)	⬇️
Py-3.13	71.93% <93.75%> (+<0.01%)	⬆️
Py-3.14	71.93% <93.75%> (+<0.01%)	⬆️
Py-3.14t	71.93% <93.75%> (+<0.01%)	⬆️
SelfHosted-Large	29.61% <62.50%> (+<0.01%)	⬆️
SelfHosted-Linux	35.74% <28.12%> (-0.01%)	⬇️

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Files with missing lines	Coverage Δ
dimos/core/coordination/blueprint_config/parser.py	86.01% <100.00%> (ø)
.../core/coordination/blueprint_config/test_parser.py	97.40% <100.00%> (+0.15%)	⬆️
dimos/core/coordination/blueprint_config/values.py	80.45% <87.50%> (+1.58%)	⬆️

... and 3 files with indirect coverage changes

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