refactor: caddyfile to json migration

[aloks98]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 89.19226% with 190 lines in your changes missing coverage. Please review.
✅ Project coverage is 71.81%. Comparing base (1f44280) to head (a02bcdd).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
backend/internal/caddy/config/tls.go	59.55%	35 Missing and 1 partial ⚠️
backend/internal/caddy/config/http_builder.go	86.13%	21 Missing and 12 partials ⚠️
backend/internal/caddy/config/tls_builder.go	85.45%	21 Missing and 11 partials ⚠️
backend/internal/api/routes/routes.go	0.00%	17 Missing ⚠️
backend/internal/caddy/file_manager.go	75.40%	10 Missing and 5 partials ⚠️
backend/internal/caddy/config/acl_builder.go	95.30%	8 Missing and 6 partials ⚠️
backend/internal/caddy/config/http_handlers.go	92.85%	12 Missing and 1 partial ⚠️
backend/internal/caddy/config/builder.go	94.96%	4 Missing and 4 partials ⚠️
backend/internal/api/handlers/proxy_acl_handler.go	0.00%	7 Missing ⚠️
backend/internal/caddy/reloader.go	93.93%	6 Missing ⚠️
... and 2 more

Additional details and impacted files

@@            Coverage Diff             @@
##           master       #9      +/-   ##
==========================================
+ Coverage   63.65%   71.81%   +8.15%     
==========================================
  Files          43       48       +5     
  Lines        8078     8610     +532     
==========================================
+ Hits         5142     6183    +1041     
+ Misses       2552     2066     -486     
+ Partials      384      361      -23     

Flag	Coverage Δ
backend	71.81% <89.19%> (+8.15%)	⬆️

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