fix(v2): generate nested TS types for embedded structs with named JSON tags

[leaanthony]

Summary

• Fixes TypeScript binding generation for Go structs with embedded (anonymous) struct fields that have named JSON tags
• Previously, TimeLimitDef \json:"timeLimitDef"`` would be flattened into the parent TS class, but Go's JSON encoder produces a nested object — causing deserialization mismatches
• Two fixes:
  1. deepFields() in typescriptify.go: checks for named JSON tags before flattening embedded structs
  2. AddStructToGenerateTS() in binding.go: allows anonymous fields with named JSON tags through for struct type registration

Test plan

• New test binding_named_embedded_struct_test.go verifies that StructWithNamedEmbeddedStruct generates:
  • Separate InnerStruct and AppInfo TS classes
  • Properly nested fields (timeLimitDef: InnerStruct, application: AppInfo) in the parent class
• All 30+ existing binding tests continue to pass (anonymous inline structs still produce any as before)

Fixes #4117

[coderabbitai]

Important

Review skipped

Draft detected.

Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 4a75e248-a116-4bcb-a476-23ff1a481fa6

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

Use the checkbox below for a quick retry:

• 🔍 Trigger review

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/4117-embedded-struct-bindings

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[leaanthony]

🤖 PR Triage Review

✅ Accepted

Generates nested TS types for embedded structs with named JSON tags (v2 bindings). Improves TypeScript type safety.

Platform: All (v2, bindings)

Next Steps: Dispatching for testing on all platforms.

---

Reviewed by Wails PR Reviewer Bot