feat: Quality-Filter für KI-Pipeline & History (#24)

Backend:
- insights.py: KI-Pipeline filtert activity_log nach quality_label
- Nur 'excellent', 'good', 'acceptable' (poor wird ausgeschlossen)
- NULL-Werte erlaubt (für alte Einträge vor Migration 014)

Frontend:
- History.jsx: Toggle "Nur qualitativ hochwertige Aktivitäten"
- Filter wirkt auf Activity-Statistiken, Charts, Listen
- Anzeige: X von Y Activities (wenn gefiltert)

Dokumentation:
- CLAUDE.md: Feature-Roadmap aktualisiert (Phase 0-2)

Closes #24

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

CLAUDE.md

@@ -190,19 +190,47 @@ frontend/src/
 
 ## Feature-Roadmap
 
-> Vollständiges Backlog: `.claude/docs/BACKLOG.md`
-> Beim Implementieren: verlinkte Dok-Datei zuerst lesen!
+> 📋 **Detaillierte Roadmap:** `.claude/docs/ROADMAP.md` (Phasen 0-3, Timeline, Abhängigkeiten)
+> 📚 **Vollständiges Backlog:** `.claude/docs/BACKLOG.md`
+> 🎯 **Gitea Issues:** http://192.168.2.144:3000/Lars/mitai-jinkendo/issues
+>
+> **Beim Implementieren:** verlinkte Dok-Datei zuerst lesen!
 
-| Version | Feature | Dokumentation |
-|---------|---------|---------------|
-| v9c | Membership (aktiv) | `technical/MEMBERSHIP_SYSTEM.md` ✅ |
-| v9d | Schlaf-Modul | `functional/SLEEP_MODULE.md` (ausstehend) |
-| v9d | Trainingstypen + HF | `functional/TRAINING_TYPES.md` ✅ |
-| v9e | Ziele + Vitalwerte | `functional/GOALS_VITALS.md` (ausstehend) |
-| v9f | KI-Prompt Flexibilisierung | `functional/AI_PROMPTS.md` ✅ |
-| v9g | Meditation + Selbstwahrnehmung | `functional/MEDITATION.md` (ausstehend) |
-| v9h | Connectoren + Stripe | ausstehend |
-| — | Responsive UI | `functional/RESPONSIVE_UI.md` ✅ |
+### Aktuelle Entwicklung (Phase 0-2, ~10-13 Wochen)
+
+| Phase | Fokus | Dauer | Gitea Issues |
+|-------|-------|-------|--------------|
+| **Phase 0** | Infrastruktur (v9f) | 4-6 Wochen | #24, #28, #29, #30 |
+| **Phase 1** | Foundation (Charts, Goals) | 2-3 Wochen | #26, #25 |
+| **Phase 2** | Engagement (Korrelationen, KI) | 3-4 Wochen | #27, #25 |
+| **Phase 3** | Begleitung (Development Routes) | später | - |
+
+**Phase 0 Issues:**
+- #24: Quality-Filter (3h, Quick Win) ← **Start hier**
+- #28: AI-Prompts Flexibilisierung (16-20h, kritisch)
+- #29: Abilities-Matrix UI (6-8h)
+- #30: Responsive UI (8-10h, parallel)
+
+**Phase 1 Issues:**
+- #26: Charts erweitern (8-10h)
+- #25: Ziele-System Basis (10-12h)
+
+**Phase 2 Issues:**
+- #27: Korrelationen (6-8h)
+- #25: Goals KI-Integration (4h)
+
+### Versions-Übersicht
+
+| Version | Feature | Dokumentation | Status |
+|---------|---------|---------------|--------|
+| v9c | Membership (aktiv) | `technical/MEMBERSHIP_SYSTEM.md` | ✅ Production |
+| v9d | Schlaf-Modul | `functional/SLEEP_MODULE.md` | ✅ Production |
+| v9d | Trainingstypen + HF | `functional/TRAINING_TYPES.md` | ✅ Production |
+| v9e | Ziele + Vitalwerte | `functional/GOALS_VITALS.md` | 🔲 Phase 1 |
+| v9f | KI-Prompt Flexibilisierung | `functional/AI_PROMPTS.md` | 🔲 Phase 0 |
+| v9g | Meditation + Selbstwahrnehmung | `functional/MEDITATION.md` | 🔲 Phase 3 |
+| v9h | Connectoren + Stripe | ausstehend | 🔲 Später |
+| — | Responsive UI | `functional/RESPONSIVE_UI.md` | 🔲 Phase 0 |
 
 ## Deployment
 

backend/routers/insights.py

@@ -75,7 +75,13 @@ def _get_profile_data(pid: str):
         caliper = [r2d(r) for r in cur.fetchall()]
         cur.execute("SELECT * FROM nutrition_log WHERE profile_id=%s ORDER BY date DESC LIMIT 90", (pid,))
         nutrition = [r2d(r) for r in cur.fetchall()]
-        cur.execute("SELECT * FROM activity_log WHERE profile_id=%s ORDER BY date DESC LIMIT 90", (pid,))
+        # Quality-Filter: nur hochwertige Aktivitäten für KI-Analyse (Issue #24)
+        cur.execute("""
+            SELECT * FROM activity_log
+            WHERE profile_id=%s
+              AND (quality_label IN ('excellent', 'good', 'acceptable') OR quality_label IS NULL)
+            ORDER BY date DESC LIMIT 90
+        """, (pid,))
         activity = [r2d(r) for r in cur.fetchall()]
         # v9d Phase 2: Sleep, Rest Days, Vitals
         cur.execute("SELECT * FROM sleep_log WHERE profile_id=%s ORDER BY date DESC LIMIT 30", (pid,))

frontend/src/pages/History.jsx

@@ -588,11 +588,16 @@ function NutritionSection({ nutrition, weights, profile, insights, onRequest, lo
 // ── Activity Section ──────────────────────────────────────────────────────────
 function ActivitySection({ activities, insights, onRequest, loadingSlug, filterActiveSlugs }) {
   const [period, setPeriod] = useState(30)
+  const [qualityFilter, setQualityFilter] = useState(false) // Issue #24: Quality-Filter Toggle
   if (!activities?.length) return (
     <EmptySection text="Noch keine Aktivitätsdaten." to="/activity" toLabel="Aktivität erfassen"/>
   )
   const cutoff = dayjs().subtract(period,'day').format('YYYY-MM-DD')
-  const filtA  = activities.filter(d=>period===9999||d.date>=cutoff)
+  // Issue #24: Filter nach Datum UND Quality-Label
+  const filtA  = activities.filter(d =>
+    (period===9999 || d.date>=cutoff) &&
+    (!qualityFilter || ['excellent', 'good', 'acceptable'].includes(d.quality_label))
+  )
 
   const byDate={}
   filtA.forEach(a=>{ byDate[a.date]=(byDate[a.date]||0)+(a.kcal_active||0) })
@@ -620,6 +625,24 @@ function ActivitySection({ activities, insights, onRequest, loadingSlug, filterA
     <div>
       <SectionHeader title="🏋️ Aktivität" to="/activity" toLabel="Alle Einträge" lastUpdated={activities[0]?.date}/>
       <PeriodSelector value={period} onChange={setPeriod}/>
+
+      {/* Issue #24: Quality-Filter Toggle */}
+      <div style={{marginBottom:12,display:'flex',alignItems:'center',gap:8}}>
+        <label style={{display:'flex',alignItems:'center',gap:6,fontSize:12,cursor:'pointer',
+          padding:'6px 10px',borderRadius:8,background:qualityFilter?'var(--accent-light)':'var(--surface2)',
+          border:`1px solid ${qualityFilter?'var(--accent)':'var(--border)'}`,
+          color:qualityFilter?'var(--accent)':'var(--text2)',transition:'all 0.2s'}}>
+          <input type="checkbox" checked={qualityFilter} onChange={e=>setQualityFilter(e.target.checked)}
+            style={{width:14,height:14,cursor:'pointer',accentColor:'var(--accent)'}}/>
+          <span style={{fontWeight:qualityFilter?600:400}}>Nur qualitativ hochwertige Aktivitäten</span>
+        </label>
+        {qualityFilter && (
+          <span style={{fontSize:11,color:'var(--text3)'}}>
+            ({filtA.length} von {activities.filter(d=>period===9999||d.date>=cutoff).length})
+          </span>
+        )}
+      </div>
+
       <div style={{display:'flex',gap:6,marginBottom:12}}>
         {[['Trainings',filtA.length,'var(--text1)'],['Kcal',totalKcal,'#EF9F27'],
           ['Stunden',Math.round(totalMin/60*10)/10,'#378ADD'],