From 1891a4ab8888ac2f56c27dd56296573e5ff7df39 Mon Sep 17 00:00:00 2001
From: Lars <Lars@stommer.de>
Date: Thu, 23 Apr 2026 10:45:14 +0200
Subject: [PATCH] =?UTF-8?q?feat:=20Phase=20B=20-=20Frontend=20API=20f?=
 =?UTF-8?q?=C3=BCr=20M:N=20Zielgruppen?=
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Frontend API Layer:
- 5 neue api.js Funktionen für M:N Management
- listTrainingStyleTargetGroups(filters) - Liste mit Filtern
- createTrainingStyleTargetGroup(data) - Neue Zuordnung
- updateTrainingStyleTargetGroup(id, data) - is_primary ändern
- deleteTrainingStyleTargetGroup(id) - Zuordnung löschen
- getTrainingStylesHierarchy() - Hierarchische Struktur für Tree-View

Pattern: Konsistent mit bestehenden Catalog-Funktionen
Export: Alle Funktionen zum api-Objekt hinzugefügt

Version: 0.3.4 (Phase B)
---
 frontend/src/utils/api.js | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/frontend/src/utils/api.js b/frontend/src/utils/api.js
index f0218dc..16c9e07 100644
--- a/frontend/src/utils/api.js
+++ b/frontend/src/utils/api.js
@@ -370,6 +370,35 @@ export async function deleteTargetGroup(id) {
   return request(`/api/target-groups/${id}`, { method: 'DELETE' })
 }
 
+// Training Style → Target Groups (M:N Assignments)
+export async function listTrainingStyleTargetGroups(filters = {}) {
+  const query = new URLSearchParams(filters).toString()
+  return request(`/api/training-style-target-groups${query ? '?' + query : ''}`)
+}
+
+export async function createTrainingStyleTargetGroup(data) {
+  return request('/api/training-style-target-groups', {
+    method: 'POST',
+    body: JSON.stringify(data)
+  })
+}
+
+export async function updateTrainingStyleTargetGroup(id, data) {
+  return request(`/api/training-style-target-groups/${id}`, {
+    method: 'PUT',
+    body: JSON.stringify(data)
+  })
+}
+
+export async function deleteTrainingStyleTargetGroup(id) {
+  return request(`/api/training-style-target-groups/${id}`, { method: 'DELETE' })
+}
+
+export async function getTrainingStylesHierarchy(filters = {}) {
+  const query = new URLSearchParams(filters).toString()
+  return request(`/api/training-styles/hierarchy${query ? '?' + query : ''}`)
+}
+
 // ============================================================================
 // Training Planning
 // ============================================================================
@@ -494,6 +523,11 @@ export const api = {
   createTargetGroup,
   updateTargetGroup,
   deleteTargetGroup,
+  listTrainingStyleTargetGroups,
+  createTrainingStyleTargetGroup,
+  updateTrainingStyleTargetGroup,
+  deleteTrainingStyleTargetGroup,
+  getTrainingStylesHierarchy,
 
   // System
   getVersion,