fix: Duplicated string literals

[mrwind-up-bird]

AutoFix: Duplicated string literals

Category: code-smell
Severity: low

Issue

Multiple files contain duplicated string literals like "human" and "json" for format parameters, which could lead to inconsistencies if changed in the future.

Fix

Introduced named constants for format parameter values (FormatHuman and FormatJSON) to eliminate duplicated string literals. This improves maintainability by centralizing these values and prevents inconsistencies if the format options need to change in the future.

---

Generated by nyxCore AutoFix

[codecov]

Codecov Report

❌ Patch coverage is 58.24561% with 833 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
internal/suggest/analyzer.go	53.6%	142 Missing and 12 partials ⚠️
internal/testgap/analyzer.go	12.3%	140 Missing and 2 partials ⚠️
internal/query/compound_refactor.go	37.1%	105 Missing and 15 partials ⚠️
internal/query/prepare_rename.go	0.0%	70 Missing ⚠️
internal/mcp/server.go	19.1%	51 Missing and 4 partials ⚠️
internal/mcp/tool_impls_compound.go	46.3%	41 Missing and 10 partials ⚠️
internal/query/prepare_move.go	63.1%	32 Missing and 6 partials ⚠️
internal/audit/analyzer.go	21.0%	30 Missing ⚠️
internal/query/compound.go	25.0%	24 Missing and 3 partials ⚠️
internal/mcp/tool_impls_testgap.go	0.0%	25 Missing ⚠️
... and 11 more

Additional details and impacted files

@@            Coverage Diff            @@
##           develop    #166     +/-   ##
=========================================
+ Coverage     45.1%   49.9%   +4.8%     
=========================================
  Files          350     305     -45     
  Lines        59747   53313   -6434     
=========================================
- Hits         26961   26628    -333     
+ Misses       30960   24797   -6163     
- Partials      1826    1888     +62     

Flag	Coverage Δ
unit	49.9% <58.2%> (+4.8%)	⬆️

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