feat: Add EmojiIconPicker component and integrate it into Admin pages for icon selection

frontend/src/components/EmojiIconPicker.jsx

@@ -0,0 +1,206 @@
+import { useState, useId } from 'react'
+import { ChevronDown, ChevronUp } from 'lucide-react'
+
+/**
+ * Kuratierte Emoji-Gruppen für Sport, Körper, Ernährung usw.
+ * Kann bei Bedarf erweitert werden (z. B. prop `extraGroups`).
+ */
+export const EMOJI_ICON_GROUPS = [
+  {
+    label: 'Training & Sport',
+    emojis: [
+      '🏃', '🚴', '🏊', '🧘', '🏋️', '⛷️', '🤸', '🥊', '🎾', '⚽', '🏀', '🤺',
+      '🚶', '🧗', '⛰️', '🏄', '🤿', '🥋', '🤼', '⛹️', '🤾', '🏌️', '🎿', '🧗‍♂️'
+    ]
+  },
+  {
+    label: 'Körper & Gesundheit',
+    emojis: [
+      '💪', '❤️', '🫀', '🦵', '🧠', '👁️', '⚖️', '📏', '🩺', '💊', '🌡️', '🫁'
+    ]
+  },
+  {
+    label: 'Ernährung',
+    emojis: [
+      '🍎', '🥩', '🥗', '🍽️', '💧', '☕', '🥤', '🥛', '🍌', '🥑', '🍞', '🐟'
+    ]
+  },
+  {
+    label: 'Schlaf & Erholung',
+    emojis: ['😴', '🌙', '🛌', '💤', '🧖', '☀️', '🌿']
+  },
+  {
+    label: 'Allgemein',
+    emojis: [
+      '🎯', '📊', '🔥', '⭐', '✨', '🎵', '📌', '🧭', '📝', '✅', '💡', '🪄'
+    ]
+  }
+]
+
+/**
+ * Wiederverwendbare Emoji-/Icon-Auswahl: Vorschau, Freitext (inkl. System-Emoji-Picker),
+ * optional ausklappbare Vorschläge.
+ *
+ * @param {string} value – aktueller Icon-String (meist ein Emoji)
+ * @param {(next: string) => void} onChange
+ * @param {string} [placeholder]
+ * @param {number} [maxLength=10]
+ * @param {boolean} [disabled]
+ * @param {string} [id] – optionale ID für das Textfeld (Label for=)
+ * @param {boolean} [defaultExpanded=false] – Vorschlags-Bereich initial offen
+ */
+export default function EmojiIconPicker({
+  value,
+  onChange,
+  placeholder = '📝',
+  maxLength = 10,
+  disabled = false,
+  id: idProp,
+  defaultExpanded = false
+}) {
+  const uid = useId()
+  const inputId = idProp || `emoji-icon-${uid}`
+  const [open, setOpen] = useState(defaultExpanded)
+
+  const handleInput = (e) => {
+    onChange(e.target.value.slice(0, maxLength))
+  }
+
+  const pick = (em) => {
+    onChange(em.slice(0, maxLength))
+  }
+
+  return (
+    <div className="emoji-icon-picker" style={{ width: '100%' }}>
+      <div
+        style={{
+          display: 'flex',
+          gap: 8,
+          alignItems: 'center',
+          flexWrap: 'wrap'
+        }}
+      >
+        <span
+          style={{
+            fontSize: 28,
+            lineHeight: 1,
+            minWidth: 40,
+            textAlign: 'center',
+            opacity: value ? 1 : 0.35
+          }}
+          aria-hidden
+        >
+          {value || '·'}
+        </span>
+        <input
+          id={inputId}
+          type="text"
+          className="form-input"
+          style={{ flex: 1, minWidth: 120 }}
+          value={value}
+          onChange={handleInput}
+          placeholder={placeholder}
+          maxLength={maxLength}
+          disabled={disabled}
+          autoComplete="off"
+          spellCheck={false}
+          inputMode="text"
+        />
+        <button
+          type="button"
+          className="btn btn-secondary"
+          disabled={disabled}
+          onClick={() => setOpen((o) => !o)}
+          style={{
+            display: 'inline-flex',
+            alignItems: 'center',
+            gap: 4,
+            padding: '8px 12px',
+            fontSize: 13
+          }}
+          aria-expanded={open}
+        >
+          {open ? <ChevronUp size={16} /> : <ChevronDown size={16} />}
+          Vorschläge
+        </button>
+        {!!value && !disabled && (
+          <button
+            type="button"
+            className="btn btn-secondary"
+            onClick={() => onChange('')}
+            style={{ padding: '8px 12px', fontSize: 13 }}
+          >
+            Leeren
+          </button>
+        )}
+      </div>
+      {open && (
+        <div
+          role="listbox"
+          aria-label="Emoji-Vorschläge"
+          style={{
+            marginTop: 10,
+            padding: 12,
+            background: 'var(--surface2)',
+            borderRadius: 12,
+            border: '1px solid var(--border)',
+            maxHeight: 280,
+            overflowY: 'auto'
+          }}
+        >
+          {EMOJI_ICON_GROUPS.map((group) => (
+            <div key={group.label} style={{ marginBottom: 14 }}>
+              <div
+                style={{
+                  fontSize: 11,
+                  fontWeight: 600,
+                  color: 'var(--text3)',
+                  marginBottom: 8,
+                  textTransform: 'uppercase',
+                  letterSpacing: '0.04em'
+                }}
+              >
+                {group.label}
+              </div>
+              <div
+                style={{
+                  display: 'flex',
+                  flexWrap: 'wrap',
+                  gap: 6
+                }}
+              >
+                {group.emojis.map((em) => (
+                  <button
+                    key={`${group.label}-${em}`}
+                    type="button"
+                    onClick={() => pick(em)}
+                    disabled={disabled}
+                    title={em}
+                    aria-label={`Icon wählen: ${em}`}
+                    style={{
+                      fontSize: 22,
+                      lineHeight: 1,
+                      padding: '8px 10px',
+                      border: `1px solid ${value === em ? 'var(--accent)' : 'var(--border)'}`,
+                      borderRadius: 8,
+                      background:
+                        value === em ? 'var(--accent-light)' : 'var(--surface)',
+                      cursor: disabled ? 'not-allowed' : 'pointer',
+                      opacity: disabled ? 0.5 : 1
+                    }}
+                  >
+                    {em}
+                  </button>
+                ))}
+              </div>
+            </div>
+          ))}
+          <p style={{ fontSize: 11, color: 'var(--text3)', margin: 0, lineHeight: 1.5 }}>
+            Du kannst auch direkt in das Feld tippen oder das Betriebssystem-Emoji-Menü nutzen
+            (z.&nbsp;B. Win + . unter Windows).
+          </p>
+        </div>
+      )}
+    </div>
+  )
+}

frontend/src/pages/AdminFocusAreasPage.jsx

@@ -1,6 +1,7 @@
 import { useState, useEffect } from 'react'
 import { Plus, Pencil, Trash2, Save, X, Eye, EyeOff } from 'lucide-react'
 import { api } from '../utils/api'
+import EmojiIconPicker from '../components/EmojiIconPicker'
 
 const CATEGORIES = [
   { value: 'body_composition', label: 'Körperzusammensetzung' },
@@ -220,15 +221,18 @@ export default function AdminFocusAreasPage() {
             </div>
 
             <div>
-              <label style={{ fontSize: 13, fontWeight: 600, display: 'block', marginBottom: 4 }}>
+              <label
+                htmlFor="admin-focus-area-new-icon"
+                style={{ fontSize: 13, fontWeight: 600, display: 'block', marginBottom: 4 }}
+              >
                 Icon (Emoji)
               </label>
-              <input
-                className="form-input"
+              <EmojiIconPicker
+                id="admin-focus-area-new-icon"
                 value={formData.icon}
-                onChange={(e) => setFormData({ ...formData, icon: e.target.value })}
+                onChange={(icon) => setFormData({ ...formData, icon })}
                 placeholder="💥"
-                style={{ width: '100%' }}
+                maxLength={10}
               />
             </div>
 
@@ -332,14 +336,18 @@ export default function AdminFocusAreasPage() {
                       </div>
 
                       <div>
-                        <label style={{ fontSize: 12, fontWeight: 600, display: 'block', marginBottom: 4 }}>
+                        <label
+                          htmlFor={`admin-focus-area-icon-${area.id}`}
+                          style={{ fontSize: 12, fontWeight: 600, display: 'block', marginBottom: 4 }}
+                        >
                           Icon
                         </label>
-                        <input
-                          className="form-input"
+                        <EmojiIconPicker
+                          id={`admin-focus-area-icon-${area.id}`}
                           value={area.icon || ''}
-                          onChange={(e) => updateField(area.id, 'icon', e.target.value)}
-                          style={{ width: '100%' }}
+                          onChange={(icon) => updateField(area.id, 'icon', icon)}
+                          placeholder="💥"
+                          maxLength={10}
                         />
                       </div>
 

frontend/src/pages/AdminGoalTypesPage.jsx

@@ -1,6 +1,7 @@
 import { useState, useEffect } from 'react'
 import { Settings, Plus, Pencil, Trash2, Database } from 'lucide-react'
 import { api } from '../utils/api'
+import EmojiIconPicker from '../components/EmojiIconPicker'
 
 export default function AdminGoalTypesPage() {
   const [goalTypes, setGoalTypes] = useState([])
@@ -367,14 +368,15 @@ export default function AdminGoalTypesPage() {
                   />
                 </div>
                 <div>
-                  <label className="form-label">Icon (Emoji)</label>
-                  <input
-                    type="text"
-                    className="form-input"
-                    style={{ width: '100%' }}
+                  <label className="form-label" htmlFor="admin-goal-type-icon">
+                    Icon (Emoji)
+                  </label>
+                  <EmojiIconPicker
+                    id="admin-goal-type-icon"
                     value={formData.icon}
-                    onChange={e => setFormData(f => ({ ...f, icon: e.target.value }))}
+                    onChange={(icon) => setFormData((f) => ({ ...f, icon }))}
                     placeholder="🧘"
+                    maxLength={10}
                   />
                 </div>
               </div>

frontend/src/pages/AdminTrainingTypesPage.jsx

@@ -3,6 +3,7 @@ import { useNavigate } from 'react-router-dom'
 import { Pencil, Trash2, Plus, Save, X, ArrowLeft, Settings } from 'lucide-react'
 import { api } from '../utils/api'
 import ProfileBuilder from '../components/ProfileBuilder'
+import EmojiIconPicker from '../components/EmojiIconPicker'
 
 /**
  * AdminTrainingTypesPage - CRUD for training types
@@ -254,13 +255,11 @@ export default function AdminTrainingTypesPage() {
 
             <div>
               <div className="form-label">Icon (Emoji)</div>
-              <input
-                className="form-input"
+              <EmojiIconPicker
                 value={formData.icon}
-                onChange={e => setFormData({ ...formData, icon: e.target.value })}
+                onChange={(icon) => setFormData({ ...formData, icon })}
                 placeholder="🏃"
                 maxLength={10}
-                style={{ width: '100%' }}
               />
             </div>
 
@@ -495,13 +494,11 @@ export default function AdminTrainingTypesPage() {
 
                       <div>
                         <div className="form-label">Icon (Emoji)</div>
-                        <input
-                          className="form-input"
+                        <EmojiIconPicker
                           value={formData.icon}
-                          onChange={e => setFormData({ ...formData, icon: e.target.value })}
+                          onChange={(icon) => setFormData({ ...formData, icon })}
                           placeholder="🏃"
                           maxLength={10}
-                          style={{ width: '100%' }}
                         />
                       </div>