refactor(dynamic_avoidance): support new interface

[satoshi-ota]

Description

🤖 Generated by Copilot at 7532982

Refactored DynamicAvoidanceModule class in behavior_path_planner package to simplify and optimize dynamic obstacle avoidance. Removed unused and redundant functions and improved variable access and state transition logic.

related ticket: https://tier4.atlassian.net/browse/RT1-3401

Tests performed

Psim

Effects on system behavior

Nothing.

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[codecov]

Codecov Report

Attention: 3 lines in your changes are missing coverage. Please review.

Comparison is base (5797ee5) 15.37% compared to head (7532982) 15.39%.
Report is 7 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5527      +/-   ##
==========================================
+ Coverage   15.37%   15.39%   +0.02%     
==========================================
  Files        1697     1697              
  Lines      117488   118137     +649     
  Branches    37762    38233     +471     
==========================================
+ Hits        18062    18192     +130     
- Misses      78858    79288     +430     
- Partials    20568    20657      +89     

Flag	Coverage Δ		*Carryforward flag
differential	12.74% <0.00%> (?)
total	15.37% <ø> (+<0.01%)	⬆️	Carriedforward from 5797ee5

*This pull request uses carry forward flags. Click here to find out more.

Files	Coverage Δ
...ule/dynamic_avoidance/dynamic_avoidance_module.hpp	9.09% <ø> (+1.27%)	⬆️
...ule/dynamic_avoidance/dynamic_avoidance_module.cpp	3.18% <0.00%> (+<0.01%)	⬆️

... and 2 files with indirect coverage changes

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