fix: support json inline tag for embedding anonymous fields in schema

[lsdch]

Patches #978 to support json:",inline" tags for embedding anonymous fields.

Although a Go embedded field is implicitly inlined, and the presence of this tag on embedded fields is thus redundant, this is still valid syntax and should be supported.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.08%. Comparing base (a38b536) to head (1debcd3).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1006      +/-   ##
==========================================
+ Coverage   93.07%   93.08%   +0.01%     
==========================================
  Files          23       23              
  Lines        4780     4787       +7     
==========================================
+ Hits         4449     4456       +7     
  Misses        271      271              
  Partials       60       60              

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[Copilot]

Pull request overview

Updates schema generation to treat json:",inline" on anonymous (embedded) Go struct fields as an instruction to inline/merge the embedded fields into the parent object schema, matching expectations for redundant-but-valid inline tagging.

Changes:

• Adjust getFields to consider anonymous fields with json:",inline" as embedded/inlined.
• Add a schema test case validating inlining behavior when json:",inline" is present.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
schema.go	Extends embedded-field detection to include json:",inline" tags.
schema_test.go	Adds coverage for the new json:",inline" embedded-field behavior.

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[Copilot]

The embedded-field check only treats the JSON tag as inline when it equals exactly ",inline". Struct tags can legally include multiple comma-separated options (e.g. json:",inline,omitempty"), and the rest of this file parses JSON tags by splitting on commas. Consider parsing the tag into name/options and treating the field as embedded when the name part is empty and the options contain inline, so ,inline still works when combined with other options.

Suggested change

	if jsonTag := f.Tag.Get("json"); jsonTag == "" || jsonTag == ",inline" {
	embedded = append(embedded, f)
	continue
	if jsonTag := f.Tag.Get("json"); jsonTag == "" {
	embedded = append(embedded, f)
	continue
	} else {
	parts := strings.Split(jsonTag, ",")
	name := parts[0]
	inline := false
	for _, opt := range parts[1:] {
	if opt == "inline" {
	inline = true
	break
	}
	}
	if name == "" && inline {
	embedded = append(embedded, f)
	continue
	}