Refactor SQL saving

[Grufoony]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 97.72727% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 87.31%. Comparing base (5a9a0d0) to head (714e021).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
src/dsf/mobility/FirstOrderDynamics.cpp	97.72%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #442   +/-   ##
=======================================
  Coverage   87.31%   87.31%           
=======================================
  Files          52       52           
  Lines        6628     6646   +18     
  Branches      765      768    +3     
=======================================
+ Hits         5787     5803   +16     
- Misses        817      819    +2     
  Partials       24       24           

Flag	Coverage Δ
unittests	87.31% <97.72%> (+<0.01%)	⬆️

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[Copilot]

Pull request overview

Refactors the SQLite persistence logic in FirstOrderDynamics by extracting repeated insert code into dedicated helper methods and introducing a shared StreetDataRecord type for batching street writes.

Changes:

• Introduces StreetDataRecord and new m_save*SQL helper methods to centralize batch inserts.
• Replaces inline SQL insert blocks inside FirstOrderDynamics::evolve() with calls to the new helpers.
• Adjusts average-stats calculation flow prior to persisting avg_stats.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 6 comments.

File	Description
src/dsf/mobility/FirstOrderDynamics.hpp	Adds StreetDataRecord and declares new SQL save helper APIs (with some doc updates needed).
src/dsf/mobility/FirstOrderDynamics.cpp	Implements the SQL save helpers and wires them into evolve() in place of inline insert logic.

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