Refactor API structure and update schema references

Moved API files from `sub_api` to `schemas` for better organization. Updated schema references to use `ApiError` instead of `Error`. Adjusted build configuration to include new schema folder in the API generation process.

open_api/build.gradle.kts

@@ -44,11 +44,17 @@ dependencies {
     implementation("org.springframework.boot:spring-boot-starter-web")
     implementation("org.springframework.boot:spring-boot-starter-validation")
     implementation("io.swagger.core.v3:swagger-annotations:2.2.20")
+    implementation("io.swagger.core.v3:swagger-models:2.2.8")
+    implementation("io.swagger.core.v3:swagger-core:2.2.8")
+
     implementation("org.openapitools:jackson-databind-nullable:0.2.6")
     implementation("org.springframework.hateoas:spring-hateoas:2.2.0")
 }
 
 tasks.register< GenerateTask>("generateJavaApi") {
+    inputs.file("${projectDir}/src/main/resources/api.yml")
+    inputs.file("${projectDir}/src/main/resources/config_backend.json")
+    inputs.dir("${projectDir}/src/main/resources/schemas")
     generatorName.set("spring")
     library.set("spring-boot")
     inputSpec.set("${projectDir}/src/main/resources/api.yml")
@@ -67,6 +73,9 @@ tasks.register< GenerateTask>("generateJavaApi") {
 }
 
 tasks.register<GenerateTask>("generateFrontendApi") {
+    inputs.file("${projectDir}/src/main/resources/api.yml")
+    inputs.file("${projectDir}/src/main/resources/config_backend.json")
+    inputs.dir("${projectDir}/src/main/resources/schemas")
     generatorName.set("typescript-angular")
     inputSpec.set("$rootDir/open_api/src/main/resources/api.yml")
     outputDir.set("${projectDir}/../frontend/src/api")