chore: remove deprecated horses, clubs, officials, and persons services

- Deleted obsolete modules related to horses, clubs, officials, and persons services, including their configurations, build files, and database provisioning scripts.
- Cleaned up associated references in the project structure (e.g., `settings.gradle.kts`).
- Removed unused database tables and Spring beans related to these domains.

Signed-off-by: Stefan Mogeritsch <stefan.mo.co@gmail.com>

backend/services/identity/identity-service/src/main/kotlin/at/mocode/identity/service/IdentityServiceApplication.kt

@@ -0,0 +1,11 @@
+package at.mocode.identity.service
+
+import org.springframework.boot.autoconfigure.SpringBootApplication
+import org.springframework.boot.runApplication
+
+@SpringBootApplication(scanBasePackages = ["at.mocode.identity", "at.mocode.infrastructure.security"])
+class IdentityServiceApplication
+
+fun main(args: Array<String>) {
+  runApplication<IdentityServiceApplication>(*args)
+}

backend/services/identity/identity-service/src/main/kotlin/at/mocode/identity/service/config/IdentityConfig.kt

@@ -0,0 +1,18 @@
+package at.mocode.identity.service.config
+
+import at.mocode.identity.domain.repository.ProfileRepository
+import at.mocode.identity.domain.service.ProfileService
+import at.mocode.identity.infrastructure.persistence.ExposedProfileRepository
+import org.springframework.context.annotation.Bean
+import org.springframework.context.annotation.Configuration
+
+@Configuration
+class IdentityConfig {
+
+  @Bean
+  fun profileRepository(): ProfileRepository = ExposedProfileRepository()
+
+  @Bean
+  fun profileService(profileRepository: ProfileRepository): ProfileService =
+    ProfileService(profileRepository)
+}

backend/services/identity/identity-service/src/main/kotlin/at/mocode/identity/service/web/ProfileController.kt

@@ -0,0 +1,46 @@
+package at.mocode.identity.service.web
+
+import at.mocode.identity.domain.model.DomProfil
+import at.mocode.identity.domain.service.ProfileService
+import org.springframework.security.core.annotation.AuthenticationPrincipal
+import org.springframework.security.oauth2.jwt.Jwt
+import org.springframework.web.bind.annotation.*
+
+@RestController
+@RequestMapping("/api/v1/profiles")
+class ProfileController(
+  private val profileService: ProfileService
+) {
+
+  @GetMapping("/me")
+  suspend fun getMyProfile(@AuthenticationPrincipal jwt: Jwt): DomProfil? {
+    return profileService.getProfileByUserId(jwt.subject)
+  }
+
+  @PostMapping("/link/{satznummer}")
+  suspend fun linkToZns(
+    @AuthenticationPrincipal jwt: Jwt,
+    @PathVariable satznummer: String
+  ): DomProfil {
+    return profileService.linkUserToZns(jwt.subject, satznummer)
+  }
+
+  @PutMapping("/me")
+  suspend fun updateMyProfile(
+    @AuthenticationPrincipal jwt: Jwt,
+    @RequestBody request: ProfileUpdateRequest
+  ): DomProfil {
+    return profileService.updateProfile(
+      userId = jwt.subject,
+      logoUrl = request.logoUrl,
+      bio = request.bio,
+      contactEmail = request.contactEmail
+    )
+  }
+}
+
+data class ProfileUpdateRequest(
+  val logoUrl: String? = null,
+  val bio: String? = null,
+  val contactEmail: String? = null
+)