feat(rtc_interface): add publisher to publish auto mode status

[kyoichi-sugahara]

Description

🤖[deprecated] Generated by Copilot at 6770084

This pull request enhances the RTCInterface module to publish its auto mode status using the AutoModeStatus message type. It also improves the readability of the code by renaming a member variable. The changes affect the files rtc_interface.hpp and rtc_interface.cpp.

Tests performed

test with simple_planning_simulator
Switched between auto mode ⇔ manual mode for crosswalk module and confirmed the result is reflected to the topic info
Screencast from 2023年12月12日 16時46分03秒.webm

Effects on system behavior

Not applicable.

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[rej55]

LGTM

[codecov]

Codecov Report

Attention: 6 lines in your changes are missing coverage. Please review.

Comparison is base (6533c72) 15.30% compared to head (6770084) 15.31%.
Report is 3 commits behind head on main.

Files	Patch %	Lines
planning/rtc_interface/src/rtc_interface.cpp	53.84%	2 Missing and 4 partials ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5845   +/-   ##
=======================================
  Coverage   15.30%   15.31%           
=======================================
  Files        1740     1740           
  Lines      119846   119855    +9     
  Branches    36446    36450    +4     
=======================================
+ Hits        18348    18353    +5     
  Misses      80969    80969           
- Partials    20529    20533    +4     

Flag	Coverage Δ		*Carryforward flag
differential	11.94% <53.84%> (?)
total	15.30% <ø> (-0.01%)	⬇️	Carriedforward from 6533c72

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