feat(acdcs): make watchLocalApplications hot-reloaded

[crenshaw-dev]

Just a sketch of the possible solution, please blame AI for the ways in which it's not good.

[codecov-commenter]

Bundle Report

Bundle size has no change ✅

[codecov-commenter]

Codecov Report

❌ Patch coverage is 34.42623% with 40 lines in your changes missing coverage. Please review.
✅ Project coverage is 55.08%. Comparing base (b812b42) to head (4abc6d6).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/controller/multicluster_handlers.go	12.12%	29 Missing ⚠️
...ternal/controller/argocdcommitstatus_controller.go	60.86%	4 Missing and 5 partials ⚠️
internal/settings/manager.go	60.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #683      +/-   ##
==========================================
- Coverage   56.69%   55.08%   -1.61%     
==========================================
  Files          37       38       +1     
  Lines        3854     3901      +47     
==========================================
- Hits         2185     2149      -36     
- Misses       1386     1449      +63     
- Partials      283      303      +20     

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