Potential fix for code scanning alert no. 45: Potentially unsafe quoting

[marle3003]

Potential fix for https://github.com/marle3003/mokapi/security/code-scanning/45

The safest way to fix this issue is to avoid interpolating untrusted data directly into single-quoted strings using %s. Instead, use fmt.Sprintf("%q", ... ), which escapes both single and double quotes as required, or sanitize the input specifically by escaping single quotes (' → \'), and, just as crucially, also escape backslashes first (\ → \\). In Go, strconv.Quote is the idiomatic method for quoting strings safely; it produces a double-quoted, safely escaped literal.

The fix will be to update the single line where the error message string is created so that name is safely quoted, replacing '%s' (which is a single-quoted string) with %q (Go double-quoted and escaped), or using strconv.Quote(name). We'll also add the necessary import for "strconv" in schema/json/parser/parser_object.go.

This addresses all variants since they flow through the same pattern of unsafely embedding a potentially untrusted string into a quoted context.

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[codecov]

Codecov Report

❌ Patch coverage is 0% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 70.86%. Comparing base (25bbbc8) to head (0ec5a34).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
schema/json/parser/parser_object.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #779      +/-   ##
==========================================
- Coverage   70.87%   70.86%   -0.01%     
==========================================
  Files         457      457              
  Lines       41293    41293              
==========================================
- Hits        29267    29264       -3     
- Misses       9863     9865       +2     
- Partials     2163     2164       +1     

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