feat: improve endpoint test coverage and correct config deserialization issue

[AnthonyMichaelTDM]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 70.27027% with 11 lines in your changes missing coverage. Please review.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
daemon/src/services/library.rs	67.64%	11 Missing ⚠️

@@            Coverage Diff             @@
##             main     #198      +/-   ##
==========================================
+ Coverage   85.18%   86.85%   +1.66%     
==========================================
  Files          93       93              
  Lines        6266     6263       -3     
==========================================
+ Hits         5338     5440     +102     
+ Misses        928      823     -105     

Components	Coverage Δ
MECOMP Core	92.93% <ø> (ø)
MECOMP Daemon	81.92% <70.27%> (+12.65%)	⬆️
MECOMP Storage	90.79% <ø> (+0.10%)	⬆️
SurrealQLX	85.14% <ø> (ø)
OneOrMany	99.35% <ø> (ø)
Analysis	81.87% <ø> (ø)
MECOMP CLI	86.38% <ø> (+0.56%)	⬆️
MECOMP TUI	86.54% <ø> (ø)

Files with missing lines	Coverage Δ
daemon/src/config.rs	91.89% <100.00%> (+50.71%)	⬆️
daemon/src/controller.rs	83.06% <ø> (+16.24%)	⬆️
daemon/src/lib.rs	72.72% <ø> (ø)
daemon/src/services/library.rs	76.19% <67.64%> (+6.65%)	⬆️

... and 2 files with indirect coverage changes