Added OpenAPI Generator rawBodyMode and object field improved generation handling

[GoodforGod]

• Add rawBodyMode for bare OpenAPI object request/response bodies.
• Default mode is BYTES, generating byte[] / ByteArray for top-level bare object bodies. RAW mode generates HTTP body abstractions instead: HttpBodyOutput / HttpBodyInput depending on client/server direction.
• Also keeps nested model object fields as Object / Any, adds HTTP body mappers, and covers Java/Kotlin client/server generation with bare object request/response tests.

Merge after #712

---

Client:

  @HttpRoute(
      method = "POST",
      path = "/store/raw-object"
  )
  DefaultApiResponses.RawObjectApiResponse rawObject(@Header HttpHeaders additionalHeaders, byte[] body); // or HttpBodyOutput body

 @Generated("io.koraframework.openapi.generator.javagen.ApiResponseGenerator")
  sealed interface RawObjectApiResponse {
    @Generated("io.koraframework.openapi.generator.javagen.ApiResponseGenerator")
    non-sealed interface RawObjectObjectApiResponse extends RawObjectApiResponse {
      byte[] content(); // or HttpBodyInput content

      int statusCode();
    }

    /**
     * Raw object response (status code 200)
     */
    @Generated("io.koraframework.openapi.generator.javagen.ApiResponseGenerator")
    record RawObject200ApiResponse(byte[] content) implements RawObjectObjectApiResponse {
      @Override
      public int statusCode() {
        return 200;
      }
    }

    /**
     * Raw object server error (status code 500)
     */
    @Generated("io.koraframework.openapi.generator.javagen.ApiResponseGenerator")
    record RawObject500ApiResponse(byte[] content) implements RawObjectObjectApiResponse {
      @Override
      public int statusCode() {
        return 500;
      }
    }
  }

---

Server:

  @HttpRoute(
      method = "POST",
      path = "/store/raw-object"
  )
  DefaultApiResponses.RawObjectApiResponse rawObject(HttpHeaders _headers, byte[] body) throws Exception; // or HttpBodyInput body

  @Generated("io.koraframework.openapi.generator.javagen.ApiResponseGenerator")
  sealed interface RawObjectApiResponse {
    /**
     * Raw object response (status code 200)
     */
    @Generated("io.koraframework.openapi.generator.javagen.ApiResponseGenerator")
    record RawObject200ApiResponse(byte[] content) implements RawObjectApiResponse { // or HttpBodyOutput content
    }

    /**
     * Raw object server error (status code 500)
     */
    @Generated("io.koraframework.openapi.generator.javagen.ApiResponseGenerator")
    record RawObject500ApiResponse(byte[] content) implements RawObjectApiResponse { // or HttpBodyOutput content
    }
  }

[github-actions]

Test Results

726 tests   717 ✅  24m 38s ⏱️
 99 suites    9 💤
 99 files      0 ❌

Results for commit 4fe0df1.

♻️ This comment has been updated with latest results.

[github-actions]

Dependency Vulnerability Report

Found 2 vulnerabilities across 2 coordinates.

Checked 159 Maven coordinates from gradle/libs.versions.toml via OSV.dev.

com.fasterxml.jackson.core:jackson-databind:2.22.0

Aliases: jackson2-databind

• GHSA-5jmj-h7xm-6q6v, CVE-2026-54515: jackson-databind has case-insensitive deserialization bypasses per-property @JsonIgnoreProperties

io.undertow:undertow-core:2.4.2.Final

Aliases: undertow-core

• GHSA-3x3v-w654-m28m, CVE-2026-3260: Undertow: Denial of Service via Multipart/Form-Data Parsing on HTTP GET Requests

[github-actions]

Dependency Update Report

Update level: patch

Found 3 dependency updates.

gradle/libs.versions.toml

• s3client-aws (software.amazon.awssdk:s3, inline:248): 2.47.5 -> 2.47.6
• zeebe: 8.9.12 -> 8.9.13
• kotlin-stdlib: 2.4.0 -> 2.4.10