[Draft] CollisionMonitor: add CostmapSource + dataset-based bag test#5642

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Lotusymt wants to merge 6 commits intoros-navigation:mainfrom

Lotusymt:feature/costmap-source-main

Commits on Oct 31, 2025

collision_monitor: fix linter and address issues in the comment
Lotusymt
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Commits on Nov 3, 2025

nav2_collision_monitor: fix lint, coverage, and collision_monitor_node_test.cpp
Lotusymt
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