feat: extend VitalsPage with all new vital parameters

Form sections:
- Morgenmessung: Ruhepuls, HRV
- Blutdruck (Omron): Systolisch, Diastolisch, Puls
- Fitness & Sauerstoff (Apple Watch): VO2 Max, SpO2, Atemfrequenz
- Warnungen: Unregelmäßiger Herzschlag, Mögliches AFib (checkboxes)

Display:
- All vitals shown in entry list with icons
- Blood pressure highlighted in red (🩸)
- VO2 Max in green (🏃)
- Warnings in orange (⚠️)

Stats overview:
- Dynamic grid showing available metrics
- Avg blood pressure 7d
- Latest VO2 Max
- Avg SpO2 7d

Save/Update:
- Only non-empty fields included in payload
- At least one vital must be provided

Ready for manual testing + import implementation

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/src/pages/VitalsPage.jsx

@@ -10,6 +10,14 @@ function empty() {
     date: dayjs().format('YYYY-MM-DD'),
     resting_hr: '',
     hrv: '',
+    blood_pressure_systolic: '',
+    blood_pressure_diastolic: '',
+    pulse: '',
+    vo2_max: '',
+    spo2: '',
+    respiratory_rate: '',
+    irregular_heartbeat: false,
+    possible_afib: false,
     note: ''
   }
 }
@@ -31,8 +39,13 @@ function EntryForm({ form, setForm, onSave, onCancel, saving, saveLabel = 'Speic
         <span className="form-unit" />
       </div>
 
+      {/* Section: Morgenmessung */}
+      <div style={{ marginTop: 16, marginBottom: 8, fontWeight: 600, fontSize: 13, color: 'var(--text2)' }}>
+        Morgenmessung (vor dem Aufstehen)
+      </div>
+
       <div className="form-row">
-        <label className="form-label">Ruhepuls *</label>
+        <label className="form-label">Ruhepuls</label>
         <input
           type="number"
           className="form-input"
@@ -61,6 +74,126 @@ function EntryForm({ form, setForm, onSave, onCancel, saving, saveLabel = 'Speic
         <span className="form-unit">ms</span>
       </div>
 
+      {/* Section: Blutdruck */}
+      <div style={{ marginTop: 16, marginBottom: 8, fontWeight: 600, fontSize: 13, color: 'var(--text2)' }}>
+        Blutdruck (Omron)
+      </div>
+
+      <div className="form-row">
+        <label className="form-label">Systolisch</label>
+        <input
+          type="number"
+          className="form-input"
+          min={50}
+          max={250}
+          step={1}
+          placeholder="z.B. 125"
+          value={form.blood_pressure_systolic || ''}
+          onChange={e => set('blood_pressure_systolic', e.target.value)}
+        />
+        <span className="form-unit">mmHg</span>
+      </div>
+
+      <div className="form-row">
+        <label className="form-label">Diastolisch</label>
+        <input
+          type="number"
+          className="form-input"
+          min={30}
+          max={150}
+          step={1}
+          placeholder="z.B. 83"
+          value={form.blood_pressure_diastolic || ''}
+          onChange={e => set('blood_pressure_diastolic', e.target.value)}
+        />
+        <span className="form-unit">mmHg</span>
+      </div>
+
+      <div className="form-row">
+        <label className="form-label">Puls</label>
+        <input
+          type="number"
+          className="form-input"
+          min={30}
+          max={200}
+          step={1}
+          placeholder="z.B. 61"
+          value={form.pulse || ''}
+          onChange={e => set('pulse', e.target.value)}
+        />
+        <span className="form-unit">bpm</span>
+      </div>
+
+      {/* Section: Fitness & Sauerstoff */}
+      <div style={{ marginTop: 16, marginBottom: 8, fontWeight: 600, fontSize: 13, color: 'var(--text2)' }}>
+        Fitness & Sauerstoff (Apple Watch)
+      </div>
+
+      <div className="form-row">
+        <label className="form-label">VO2 Max</label>
+        <input
+          type="number"
+          className="form-input"
+          min={10}
+          max={90}
+          step={0.1}
+          placeholder="z.B. 42.5"
+          value={form.vo2_max || ''}
+          onChange={e => set('vo2_max', e.target.value)}
+        />
+        <span className="form-unit">ml/kg/min</span>
+      </div>
+
+      <div className="form-row">
+        <label className="form-label">SpO2</label>
+        <input
+          type="number"
+          className="form-input"
+          min={70}
+          max={100}
+          step={1}
+          placeholder="z.B. 98"
+          value={form.spo2 || ''}
+          onChange={e => set('spo2', e.target.value)}
+        />
+        <span className="form-unit">%</span>
+      </div>
+
+      <div className="form-row">
+        <label className="form-label">Atemfrequenz</label>
+        <input
+          type="number"
+          className="form-input"
+          min={1}
+          max={60}
+          step={0.1}
+          placeholder="z.B. 15.5"
+          value={form.respiratory_rate || ''}
+          onChange={e => set('respiratory_rate', e.target.value)}
+        />
+        <span className="form-unit">/min</span>
+      </div>
+
+      {/* Section: Warnungen */}
+      <div style={{ marginTop: 16, marginBottom: 8 }}>
+        <label style={{ display: 'flex', alignItems: 'center', gap: 6, fontSize: 13, marginBottom: 4 }}>
+          <input
+            type="checkbox"
+            checked={form.irregular_heartbeat || false}
+            onChange={e => set('irregular_heartbeat', e.target.checked)}
+          />
+          Unregelmäßiger Herzschlag festgestellt
+        </label>
+        <label style={{ display: 'flex', alignItems: 'center', gap: 6, fontSize: 13 }}>
+          <input
+            type="checkbox"
+            checked={form.possible_afib || false}
+            onChange={e => set('possible_afib', e.target.checked)}
+          />
+          Mögliches Vorhofflimmern (AFib)
+        </label>
+      </div>
+
       <div className="form-row">
         <label className="form-label">Notiz</label>
         <input
@@ -127,10 +260,22 @@ export default function VitalsPage() {
       // Only include fields if they have values
       if (form.resting_hr) payload.resting_hr = parseInt(form.resting_hr)
       if (form.hrv) payload.hrv = parseInt(form.hrv)
+      if (form.blood_pressure_systolic) payload.blood_pressure_systolic = parseInt(form.blood_pressure_systolic)
+      if (form.blood_pressure_diastolic) payload.blood_pressure_diastolic = parseInt(form.blood_pressure_diastolic)
+      if (form.pulse) payload.pulse = parseInt(form.pulse)
+      if (form.vo2_max) payload.vo2_max = parseFloat(form.vo2_max)
+      if (form.spo2) payload.spo2 = parseInt(form.spo2)
+      if (form.respiratory_rate) payload.respiratory_rate = parseFloat(form.respiratory_rate)
+      if (form.irregular_heartbeat) payload.irregular_heartbeat = form.irregular_heartbeat
+      if (form.possible_afib) payload.possible_afib = form.possible_afib
       if (form.note) payload.note = form.note
 
-      if (!payload.resting_hr && !payload.hrv) {
-        setError('Mindestens Ruhepuls oder HRV muss angegeben werden')
+      // Check if at least one vital is provided
+      const hasData = payload.resting_hr || payload.hrv || payload.blood_pressure_systolic ||
+                      payload.blood_pressure_diastolic || payload.vo2_max || payload.spo2 ||
+                      payload.respiratory_rate
+      if (!hasData) {
+        setError('Mindestens ein Vitalwert muss angegeben werden')
         setSaving(false)
         return
       }
@@ -159,6 +304,14 @@ export default function VitalsPage() {
       if (editing.date) payload.date = editing.date
       if (editing.resting_hr) payload.resting_hr = parseInt(editing.resting_hr)
       if (editing.hrv) payload.hrv = parseInt(editing.hrv)
+      if (editing.blood_pressure_systolic) payload.blood_pressure_systolic = parseInt(editing.blood_pressure_systolic)
+      if (editing.blood_pressure_diastolic) payload.blood_pressure_diastolic = parseInt(editing.blood_pressure_diastolic)
+      if (editing.pulse) payload.pulse = parseInt(editing.pulse)
+      if (editing.vo2_max) payload.vo2_max = parseFloat(editing.vo2_max)
+      if (editing.spo2) payload.spo2 = parseInt(editing.spo2)
+      if (editing.respiratory_rate) payload.respiratory_rate = parseFloat(editing.respiratory_rate)
+      if (editing.irregular_heartbeat !== undefined) payload.irregular_heartbeat = editing.irregular_heartbeat
+      if (editing.possible_afib !== undefined) payload.possible_afib = editing.possible_afib
       if (editing.note) payload.note = editing.note
 
       await api.updateVitals(editing.id, payload)
@@ -206,36 +359,73 @@ export default function VitalsPage() {
       {/* Stats Overview */}
       {stats && stats.total_entries > 0 && (
         <div className="card section-gap">
-          <div style={{ display: 'flex', gap: 8, flexWrap: 'wrap' }}>
+          <div style={{ display: 'grid', gridTemplateColumns: 'repeat(auto-fit, minmax(100px, 1fr))', gap: 8 }}>
+            {stats.avg_resting_hr_7d && (
               <div style={{
-              flex: 1,
-              minWidth: 120,
                 background: 'var(--surface2)',
                 borderRadius: 8,
                 padding: '8px 10px',
                 textAlign: 'center'
               }}>
                 <div style={{ fontSize: 18, fontWeight: 700, color: '#378ADD' }}>
-                {stats.avg_resting_hr_7d ? Math.round(stats.avg_resting_hr_7d) : '—'}
+                  {Math.round(stats.avg_resting_hr_7d)}
                 </div>
                 <div style={{ fontSize: 10, color: 'var(--text3)' }}>Ø Ruhepuls 7d</div>
               </div>
+            )}
+            {stats.avg_hrv_7d && (
               <div style={{
-              flex: 1,
-              minWidth: 120,
                 background: 'var(--surface2)',
                 borderRadius: 8,
                 padding: '8px 10px',
                 textAlign: 'center'
               }}>
                 <div style={{ fontSize: 18, fontWeight: 700, color: '#1D9E75' }}>
-                {stats.avg_hrv_7d ? Math.round(stats.avg_hrv_7d) : '—'}
+                  {Math.round(stats.avg_hrv_7d)}
                 </div>
                 <div style={{ fontSize: 10, color: 'var(--text3)' }}>Ø HRV 7d</div>
               </div>
+            )}
+            {stats.avg_bp_systolic_7d && (
+              <div style={{
+                background: 'var(--surface2)',
+                borderRadius: 8,
+                padding: '8px 10px',
+                textAlign: 'center'
+              }}>
+                <div style={{ fontSize: 16, fontWeight: 700, color: '#E74C3C' }}>
+                  {Math.round(stats.avg_bp_systolic_7d)}/{Math.round(stats.avg_bp_diastolic_7d || 0)}
+                </div>
+                <div style={{ fontSize: 10, color: 'var(--text3)' }}>Ø Blutdruck 7d</div>
+              </div>
+            )}
+            {stats.latest_vo2_max && (
+              <div style={{
+                background: 'var(--surface2)',
+                borderRadius: 8,
+                padding: '8px 10px',
+                textAlign: 'center'
+              }}>
+                <div style={{ fontSize: 18, fontWeight: 700, color: '#1D9E75' }}>
+                  {stats.latest_vo2_max.toFixed(1)}
+                </div>
+                <div style={{ fontSize: 10, color: 'var(--text3)' }}>VO2 Max</div>
+              </div>
+            )}
+            {stats.avg_spo2_7d && (
+              <div style={{
+                background: 'var(--surface2)',
+                borderRadius: 8,
+                padding: '8px 10px',
+                textAlign: 'center'
+              }}>
+                <div style={{ fontSize: 18, fontWeight: 700, color: '#7B68EE' }}>
+                  {Math.round(stats.avg_spo2_7d)}%
+                </div>
+                <div style={{ fontSize: 10, color: 'var(--text3)' }}>Ø SpO2 7d</div>
+              </div>
+            )}
             <div style={{
-              flex: 1,
-              minWidth: 120,
               background: 'var(--surface2)',
               borderRadius: 8,
               padding: '8px 10px',
@@ -377,9 +567,39 @@ export default function VitalsPage() {
                               📊 HRV {e.hrv} ms
                             </span>
                           )}
+                          {e.blood_pressure_systolic && e.blood_pressure_diastolic && (
+                            <span style={{ fontSize: 12, color: '#E74C3C', fontWeight: 600 }}>
+                              🩸 {e.blood_pressure_systolic}/{e.blood_pressure_diastolic} mmHg
+                            </span>
+                          )}
+                          {e.pulse && (
+                            <span style={{ fontSize: 12, color: 'var(--text2)' }}>
+                              💓 {e.pulse} bpm
+                            </span>
+                          )}
+                          {e.vo2_max && (
+                            <span style={{ fontSize: 12, color: '#1D9E75', fontWeight: 600 }}>
+                              🏃 VO2 {e.vo2_max}
+                            </span>
+                          )}
+                          {e.spo2 && (
+                            <span style={{ fontSize: 12, color: 'var(--text2)' }}>
+                              🫁 SpO2 {e.spo2}%
+                            </span>
+                          )}
+                          {e.respiratory_rate && (
+                            <span style={{ fontSize: 12, color: 'var(--text2)' }}>
+                              💨 {e.respiratory_rate}/min
+                            </span>
+                          )}
+                          {(e.irregular_heartbeat || e.possible_afib) && (
+                            <span style={{ fontSize: 12, color: '#D85A30', fontWeight: 600 }}>
+                              ⚠️ {e.irregular_heartbeat ? 'Unregelmäßig' : ''} {e.possible_afib ? 'AFib?' : ''}
+                            </span>
+                          )}
                           {e.source !== 'manual' && (
                             <span style={{ fontSize: 10, color: 'var(--text3)' }}>
-                              {e.source === 'apple_health' ? 'Apple Health' : e.source}
+                              {e.source === 'apple_health' ? 'Apple Health' : e.source === 'omron' ? 'Omron' : e.source}
                             </span>
                           )}
                         </div>