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>

frontend/features/turnier-feature/src/jvmMain/kotlin/at/mocode/turnier/feature/presentation/TurnierAbrechnungTab.kt

@@ -4,10 +4,10 @@ import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.items
+import androidx.compose.material3.*
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Print
 import androidx.compose.material.icons.filled.Refresh
-import androidx.compose.material3.*
 import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
@@ -16,6 +16,7 @@ import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import at.mocode.frontend.core.designsystem.models.PlaceholderContent
+import at.mocode.frontend.core.navigation.AppScreen
 
 private val PrimaryBlue = Color(0xFF1E3A8A)
 private val AccentBlue = Color(0xFF3B82F6)
@@ -50,7 +51,7 @@ fun AbrechnungTabContent() {
     // ── Hauptbereich ─────────────────────────────────────────────────────
     Column(modifier = Modifier.weight(1f).fillMaxHeight()) {
       // Sub-Tabs
-      TabRow(
+      SecondaryTabRow(
         selectedTabIndex = subTab,
         containerColor = MaterialTheme.colorScheme.surface,
         contentColor = Color(0xFF1E3A8A),
@@ -81,7 +82,7 @@ fun AbrechnungTabContent() {
 
     // ── Rechte Sidebar ───────────────────────────────────────────────────
     Column(modifier = Modifier.width(320.dp).fillMaxHeight()) {
-      TabRow(
+      SecondaryTabRow(
         selectedTabIndex = sidebarTab,
         containerColor = MaterialTheme.colorScheme.surface,
         contentColor = Color(0xFF1E3A8A),