Merge pull request 'WP 9c Phase 1' (#12) from develop into main

Reviewed-on: #12

CLAUDE.md

@@ -1,5 +1,12 @@
 # Mitai Jinkendo – Entwickler-Kontext für Claude Code
 
+## Pflicht-Lektüre für Claude Code
+
+> VOR jeder Implementierung lesen:
+> | Architektur-Regeln | `.claude/rules/ARCHITECTURE.md` |
+> | Coding-Regeln      | `.claude/rules/CODING_RULES.md` |
+> | Lessons Learned    | `.claude/rules/LESSONS_LEARNED.md` |
+
 ## Projekt-Übersicht
 **Mitai Jinkendo** (身体 Jinkendo) – selbst-gehostete PWA für Körper-Tracking mit KI-Auswertung.
 Teil der **Jinkendo**-App-Familie (人拳道). Domains: jinkendo.de / .com / .life
@@ -93,43 +100,49 @@ frontend/src/
 - ✅ **Navigation-Fixes:** Alle Login/Verify-Flows funktionieren korrekt
 - ✅ **Error-Handling:** JSON-Fehler sauber formatiert, Dashboard robust bei API-Fehlern
 
-### Auf develop (bereit für Prod) 🚀
+### v9d – Phase 1b ✅ (Deployed to Production 21.03.2026)
-**v9d Phase 1b - Feature-komplett, ready for deployment**
 
-- ✅ **Trainingstypen-System (komplett):**
+**Trainingstypen-System mit lernendem Mapping:**
-  - 29 Trainingstypen (7 Kategorien)
+
-  - Admin-CRUD mit vollständiger UI
+- ✅ **29 Trainingstypen** in 7 Kategorien (inkl. Geist & Meditation)
-  - Automatisches Apple Health Mapping (23 Workout-Typen)
+- ✅ **Lernendes Mapping-System (DB-basiert):**
-  - Bulk-Kategorisierung für bestehende Aktivitäten
+  - Tabelle `activity_type_mappings` statt hardcoded
-  - Farbige Typ-Badges in Aktivitätsliste
+  - 40+ Standard-Mappings (Deutsch + English)
-  - TrainingTypeDistribution Chart in History-Seite
+  - Auto-Learning: Bulk-Kategorisierung speichert Mappings
+  - User-spezifische + globale Mappings
+  - Admin-UI für Mapping-Verwaltung (inline editing)
+  - Coverage-Stats (% zugeordnet vs. unkategorisiert)
+- ✅ **Apple Health Import:**
+  - Deutsche Workout-Namen unterstützt
+  - Automatisches Mapping via DB
+  - Duplikat-Erkennung (date + start_time)
+  - Update statt Insert bei Reimport
+- ✅ **UI-Features:**
   - TrainingTypeSelect in ActivityPage
+  - Farbige Typ-Badges in Aktivitätsliste
+  - TrainingTypeDistribution Chart in History
+  - Bulk-Kategorisierung (selbstlernend)
+  - Admin-CRUD für Trainingstypen
+  - Admin-CRUD für Activity-Mappings (inline editing)
 
-- ✅ **Weitere Verbesserungen:**
+**Migrations:**
-  - TrialBanner mailto (Vorbereitung zentrales Abo-System)
+- Migration 004: training_types Tabelle + 23 Basis-Typen
-  - Admin-Formular UX-Optimierung (Full-width inputs, größere Textareas)
+- Migration 005: Extended types (Gehen, Tanzen, Geist & Meditation)
+- Migration 006: abilities JSONB column (Platzhalter für v9f)
+- Migration 007: activity_type_mappings (lernendes System)
 
-- 📚 **Dokumentation:**
+**Dokumentation:**
-  - `.claude/docs/technical/CENTRAL_SUBSCRIPTION_SYSTEM.md`
 - `.claude/docs/functional/AI_PROMPTS.md` (erweitert um Fähigkeiten-Mapping)
+- `.claude/docs/technical/CENTRAL_SUBSCRIPTION_SYSTEM.md`
 
-### v9d – Phase 1 ✅ (Deployed 21.03.2026)
+### v9d – Phase 2 🔲 (Nächster Schritt)
-- ✅ **Trainingstypen Basis:** DB-Schema, 23 Typen, API-Endpoints
+**Vitalwerte & Erholung:**
-- ✅ **Logout-Button:** Im Header neben Avatar, mit Bestätigung
-- ✅ **Components:** TrainingTypeSelect, TrainingTypeDistribution
-
-### v9d – Phase 1b ✅ (Abgeschlossen, auf develop)
-- ✅ ActivityPage: TrainingTypeSelect eingebunden
-- ✅ History: TrainingTypeDistribution Chart + Typ-Badges bei Aktivitäten
-- ✅ Apple Health Import: Automatisches Mapping (29 Typen)
-- ✅ Bulk-Kategorisierung: UI + Endpoints
-- ✅ Admin-CRUD: Vollständige Verwaltung inkl. UX-Optimierungen
-
-### v9d – Phase 2+ 🔲 (Später)
 - 🔲 Ruhetage erfassen (rest_days Tabelle)
 - 🔲 Ruhepuls erfassen (vitals_log Tabelle)
 - 🔲 HF-Zonen + Erholungsstatus
-- 🔲 Schlaf-Modul
+- 🔲 Schlaf-Modul (Basis)
+
+📚 Details: `.claude/docs/functional/TRAINING_TYPES.md`
 
 📚 Details: `.claude/docs/technical/MEMBERSHIP_SYSTEM.md` · `.claude/docs/architecture/FEATURE_ENFORCEMENT.md`
 
@@ -277,25 +290,31 @@ Bottom-Padding Mobile: 80px (Navigation)
 > Vollständige CSS-Variablen und Komponenten-Muster: `frontend/src/app.css`
 > Responsive Layout-Spec: `.claude/docs/functional/RESPONSIVE_UI.md`
 
-## Dokumentations-Referenzen
+## Dokumentations-Struktur
+
+```
+.claude/
+├── BACKLOG.md              ← Feature-Übersicht
+├── commands/               ← Slash-Commands (/deploy, /document etc.)
+├── docs/
+│   ├── functional/         ← Fachliche Specs (WAS soll gebaut werden)
+│   ├── technical/          ← Technische Specs (WIE wird es gebaut)
+│   └── rules/              ← Verbindliche Regeln
+└── library/                ← Ergebnis-Dokumentation (WAS wurde gebaut)
+```
+
+|Bereich|Pfad|Inhalt|
+|-|-|-|
+|Architektur-Übersicht|`.claude/library/ARCHITECTURE.md`|Gesamt-Überblick|
+|Frontend-Dokumentation|`.claude/library/FRONTEND.md`|Seiten + Komponenten|
+|Auth-Flow|`.claude/library/AUTH.md`|Sicherheit + Sessions|
+|API-Referenz|`.claude/library/API\_REFERENCE.md`|Alle Endpoints|
+|Datenbankschema|`.claude/library/DATABASE.md`|Tabellen + Beziehungen|
+
+> Library-Dateien werden mit `/document` generiert und nach größeren
+> Änderungen aktualisiert.
 
-> **Für Claude Code:** Beim Arbeiten an einem Thema die entsprechende Datei lesen:
 
-| Thema | Datei |
-|-------|-------|
-| Backend-Architektur, Router, DB-Zugriff | `.claude/docs/architecture/BACKEND.md` |
-| Frontend-Architektur, api.js, Komponenten | `.claude/docs/architecture/FRONTEND.md` |
-| **Feature-Enforcement (neue Features hinzufügen)** | `.claude/docs/architecture/FEATURE_ENFORCEMENT.md` |
-| **Database Migrations (Schema-Änderungen)** | `.claude/docs/technical/MIGRATIONS.md` |
-| Coding Rules (Pflichtregeln) | `.claude/docs/rules/CODING_RULES.md` |
-| Lessons Learned (Fehler vermeiden) | `.claude/docs/rules/LESSONS_LEARNED.md` |
-| Feature Backlog (Übersicht) | `.claude/docs/BACKLOG.md` |
-| **Pending Features (noch nicht enforced)** | `.claude/docs/PENDING_FEATURES.md` |
-| **Known Issues (Bugs & Tech Debt)** | `.claude/docs/KNOWN_ISSUES.md` |
-| Membership-System (v9c, technisch) | `.claude/docs/technical/MEMBERSHIP_SYSTEM.md` |
-| Trainingstypen + HF (v9d, fachlich) | `.claude/docs/functional/TRAINING_TYPES.md` |
-| KI-Prompt Flexibilisierung (v9f, fachlich) | `.claude/docs/functional/AI_PROMPTS.md` |
-| Responsive UI (fachlich) | `.claude/docs/functional/RESPONSIVE_UI.md` |
 
 ## Jinkendo App-Familie
 ```

backend/main.py

@@ -20,7 +20,7 @@ from routers import activity, nutrition, photos, insights, prompts
 from routers import admin, stats, exportdata, importdata
 from routers import subscription, coupons, features, tiers_mgmt, tier_limits
 from routers import user_restrictions, access_grants, training_types, admin_training_types
-from routers import admin_activity_mappings
+from routers import admin_activity_mappings, sleep
 
 # ── App Configuration ─────────────────────────────────────────────────────────
 DATA_DIR   = Path(os.getenv("DATA_DIR",   "./data"))
@@ -86,10 +86,11 @@ app.include_router(tier_limits.router)    # /api/tier-limits (admin)
 app.include_router(user_restrictions.router)  # /api/user-restrictions (admin)
 app.include_router(access_grants.router)  # /api/access-grants (admin)
 
-# v9d Training Types
+# v9d Training Types & Sleep Module
 app.include_router(training_types.router)       # /api/training-types/*
 app.include_router(admin_training_types.router) # /api/admin/training-types/*
 app.include_router(admin_activity_mappings.router) # /api/admin/activity-mappings/*
+app.include_router(sleep.router)                # /api/sleep/* (v9d Phase 2b)
 
 # ── Health Check ──────────────────────────────────────────────────────────────
 @app.get("/")

backend/migrations/008_vitals_rest_days.sql

@@ -0,0 +1,59 @@
+-- Migration 008: Vitals, Rest Days, Weekly Goals
+-- v9d Phase 2: Sleep & Vitals Module
+-- Date: 2026-03-22
+
+-- Rest Days
+CREATE TABLE IF NOT EXISTS rest_days (
+    id SERIAL PRIMARY KEY,
+    profile_id UUID NOT NULL REFERENCES profiles(id) ON DELETE CASCADE,
+    date DATE NOT NULL,
+    type VARCHAR(20) NOT NULL CHECK (type IN ('full_rest', 'active_recovery')),
+    note TEXT,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    CONSTRAINT unique_rest_day_per_profile UNIQUE(profile_id, date)
+);
+CREATE INDEX idx_rest_days_profile_date ON rest_days(profile_id, date DESC);
+
+-- Vitals (Resting HR + HRV)
+CREATE TABLE IF NOT EXISTS vitals_log (
+    id SERIAL PRIMARY KEY,
+    profile_id UUID NOT NULL REFERENCES profiles(id) ON DELETE CASCADE,
+    date DATE NOT NULL,
+    resting_hr INTEGER CHECK (resting_hr > 0 AND resting_hr < 200),
+    hrv INTEGER CHECK (hrv > 0),
+    note TEXT,
+    source VARCHAR(20) DEFAULT 'manual' CHECK (source IN ('manual', 'apple_health', 'garmin')),
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    CONSTRAINT unique_vitals_per_day UNIQUE(profile_id, date)
+);
+CREATE INDEX idx_vitals_profile_date ON vitals_log(profile_id, date DESC);
+
+-- Extend activity_log for heart rate data
+ALTER TABLE activity_log
+ADD COLUMN IF NOT EXISTS avg_hr INTEGER CHECK (avg_hr > 0 AND avg_hr < 250),
+ADD COLUMN IF NOT EXISTS max_hr INTEGER CHECK (max_hr > 0 AND max_hr < 250);
+
+-- Extend profiles for HF max and sleep goal
+ALTER TABLE profiles
+ADD COLUMN IF NOT EXISTS hf_max INTEGER CHECK (hf_max > 0 AND hf_max < 250),
+ADD COLUMN IF NOT EXISTS sleep_goal_minutes INTEGER DEFAULT 450 CHECK (sleep_goal_minutes > 0);
+
+-- Weekly Goals (Soll/Ist Wochenplanung)
+CREATE TABLE IF NOT EXISTS weekly_goals (
+    id SERIAL PRIMARY KEY,
+    profile_id UUID NOT NULL REFERENCES profiles(id) ON DELETE CASCADE,
+    week_start DATE NOT NULL,
+    goals JSONB NOT NULL,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    CONSTRAINT unique_weekly_goal_per_profile UNIQUE(profile_id, week_start)
+);
+CREATE INDEX idx_weekly_goals_profile_week ON weekly_goals(profile_id, week_start DESC);
+
+-- Comments for documentation
+COMMENT ON TABLE rest_days IS 'v9d Phase 2: Rest days tracking (full rest or active recovery)';
+COMMENT ON TABLE vitals_log IS 'v9d Phase 2: Daily vitals (resting HR, HRV)';
+COMMENT ON TABLE weekly_goals IS 'v9d Phase 2: Weekly training goals (Soll/Ist planning)';
+COMMENT ON COLUMN profiles.hf_max IS 'Maximum heart rate for HR zone calculation';
+COMMENT ON COLUMN profiles.sleep_goal_minutes IS 'Sleep goal in minutes (default: 450 = 7h 30min)';

backend/migrations/009_sleep_log.sql

@@ -0,0 +1,31 @@
+-- Migration 009: Sleep Log Table
+-- v9d Phase 2b: Sleep Module Core
+-- Date: 2026-03-22
+
+CREATE TABLE IF NOT EXISTS sleep_log (
+    id SERIAL PRIMARY KEY,
+    profile_id UUID NOT NULL REFERENCES profiles(id) ON DELETE CASCADE,
+    date DATE NOT NULL,
+    bedtime TIME,
+    wake_time TIME,
+    duration_minutes INTEGER NOT NULL CHECK (duration_minutes > 0),
+    quality INTEGER CHECK (quality >= 1 AND quality <= 5),
+    wake_count INTEGER CHECK (wake_count >= 0),
+    deep_minutes INTEGER CHECK (deep_minutes >= 0),
+    rem_minutes INTEGER CHECK (rem_minutes >= 0),
+    light_minutes INTEGER CHECK (light_minutes >= 0),
+    awake_minutes INTEGER CHECK (awake_minutes >= 0),
+    sleep_segments JSONB,
+    note TEXT,
+    source VARCHAR(20) DEFAULT 'manual' CHECK (source IN ('manual', 'apple_health', 'garmin')),
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    CONSTRAINT unique_sleep_per_day UNIQUE(profile_id, date)
+);
+
+CREATE INDEX idx_sleep_profile_date ON sleep_log(profile_id, date DESC);
+
+-- Comments for documentation
+COMMENT ON TABLE sleep_log IS 'v9d Phase 2b: Daily sleep tracking with phase data';
+COMMENT ON COLUMN sleep_log.date IS 'Date of the night (wake date, not bedtime date)';
+COMMENT ON COLUMN sleep_log.sleep_segments IS 'Raw phase segments: [{"phase": "deep", "start": "23:44", "duration_min": 42}, ...]';

backend/routers/sleep.py

@@ -0,0 +1,660 @@
+"""
+Sleep Module Router (v9d Phase 2b)
+
+Endpoints:
+- CRUD: list, create/upsert, update, delete
+- Stats: 7-day average, trends, phase distribution, sleep debt
+- Correlations: sleep ↔ resting HR, training, weight (Phase 2e)
+"""
+from fastapi import APIRouter, Depends, HTTPException, UploadFile, File
+from pydantic import BaseModel
+from typing import Literal
+from datetime import datetime, timedelta
+import csv
+import io
+import json
+
+from auth import require_auth
+from db import get_db, get_cursor
+
+router = APIRouter(prefix="/api/sleep", tags=["sleep"])
+
+# ── Models ────────────────────────────────────────────────────────────────────
+
+class SleepCreate(BaseModel):
+    date: str  # YYYY-MM-DD
+    bedtime: str | None = None  # HH:MM
+    wake_time: str | None = None  # HH:MM
+    duration_minutes: int
+    quality: int | None = None  # 1-5
+    wake_count: int | None = None
+    deep_minutes: int | None = None
+    rem_minutes: int | None = None
+    light_minutes: int | None = None
+    awake_minutes: int | None = None
+    note: str = ""
+    source: Literal['manual', 'apple_health', 'garmin'] = 'manual'
+
+class SleepResponse(BaseModel):
+    id: int
+    profile_id: str
+    date: str
+    bedtime: str | None
+    wake_time: str | None
+    duration_minutes: int
+    duration_formatted: str
+    quality: int | None
+    wake_count: int | None
+    deep_minutes: int | None
+    rem_minutes: int | None
+    light_minutes: int | None
+    awake_minutes: int | None
+    sleep_segments: list | None
+    sleep_efficiency: float | None
+    deep_percent: float | None
+    rem_percent: float | None
+    note: str
+    source: str
+    created_at: str
+
+class SleepStatsResponse(BaseModel):
+    avg_duration_minutes: float
+    avg_quality: float | None
+    total_nights: int
+    nights_below_goal: int
+    sleep_goal_minutes: int
+
+class SleepDebtResponse(BaseModel):
+    sleep_debt_minutes: int
+    sleep_debt_formatted: str
+    days_analyzed: int
+    sleep_goal_minutes: int
+
+# ── Helper Functions ──────────────────────────────────────────────────────────
+
+def format_duration(minutes: int) -> str:
+    """Convert minutes to 'Xh Ymin' format."""
+    hours = minutes // 60
+    mins = minutes % 60
+    return f"{hours}h {mins}min"
+
+def calculate_sleep_efficiency(duration_min: int, awake_min: int | None) -> float | None:
+    """Sleep efficiency = duration / (duration + awake) * 100."""
+    if awake_min is None or awake_min == 0:
+        return None
+    total = duration_min + awake_min
+    return round((duration_min / total) * 100, 1) if total > 0 else None
+
+def calculate_phase_percent(phase_min: int | None, duration_min: int) -> float | None:
+    """Calculate phase percentage of total duration."""
+    if phase_min is None or duration_min == 0:
+        return None
+    return round((phase_min / duration_min) * 100, 1)
+
+def row_to_sleep_response(row: dict) -> SleepResponse:
+    """Convert DB row to SleepResponse."""
+    return SleepResponse(
+        id=row['id'],
+        profile_id=row['profile_id'],
+        date=str(row['date']),
+        bedtime=str(row['bedtime']) if row['bedtime'] else None,
+        wake_time=str(row['wake_time']) if row['wake_time'] else None,
+        duration_minutes=row['duration_minutes'],
+        duration_formatted=format_duration(row['duration_minutes']),
+        quality=row['quality'],
+        wake_count=row['wake_count'],
+        deep_minutes=row['deep_minutes'],
+        rem_minutes=row['rem_minutes'],
+        light_minutes=row['light_minutes'],
+        awake_minutes=row['awake_minutes'],
+        sleep_segments=row['sleep_segments'],
+        sleep_efficiency=calculate_sleep_efficiency(row['duration_minutes'], row['awake_minutes']),
+        deep_percent=calculate_phase_percent(row['deep_minutes'], row['duration_minutes']),
+        rem_percent=calculate_phase_percent(row['rem_minutes'], row['duration_minutes']),
+        note=row['note'] or "",
+        source=row['source'],
+        created_at=str(row['created_at'])
+    )
+
+# ── CRUD Endpoints ────────────────────────────────────────────────────────────
+
+@router.get("")
+def list_sleep(
+    limit: int = 90,
+    session: dict = Depends(require_auth)
+):
+    """List sleep entries for current profile (last N days)."""
+    pid = session['profile_id']
+
+    with get_db() as conn:
+        cur = get_cursor(conn)
+        cur.execute("""
+            SELECT * FROM sleep_log
+            WHERE profile_id = %s
+            ORDER BY date DESC
+            LIMIT %s
+        """, (pid, limit))
+        rows = cur.fetchall()
+
+    return [row_to_sleep_response(row) for row in rows]
+
+@router.get("/by-date/{date}")
+def get_sleep_by_date(
+    date: str,
+    session: dict = Depends(require_auth)
+):
+    """Get sleep entry for specific date."""
+    pid = session['profile_id']
+
+    with get_db() as conn:
+        cur = get_cursor(conn)
+        cur.execute("""
+            SELECT * FROM sleep_log
+            WHERE profile_id = %s AND date = %s
+        """, (pid, date))
+        row = cur.fetchone()
+
+    if not row:
+        raise HTTPException(404, "No sleep entry for this date")
+
+    return row_to_sleep_response(row)
+
+@router.post("")
+def create_sleep(
+    data: SleepCreate,
+    session: dict = Depends(require_auth)
+):
+    """Create or update sleep entry (upsert by date)."""
+    pid = session['profile_id']
+
+    # Convert empty strings to None for TIME fields
+    bedtime = data.bedtime if data.bedtime else None
+    wake_time = data.wake_time if data.wake_time else None
+
+    # Plausibility check: sleep phases (deep+rem+light) should sum to duration
+    # Note: awake_minutes is NOT part of sleep duration (tracked separately)
+    if any([data.deep_minutes, data.rem_minutes, data.light_minutes]):
+        sleep_phase_sum = (data.deep_minutes or 0) + (data.rem_minutes or 0) + (data.light_minutes or 0)
+        diff = abs(data.duration_minutes - sleep_phase_sum)
+        if diff > 5:
+            raise HTTPException(
+                400,
+                f"Plausibilitätsprüfung fehlgeschlagen: Schlafphasen-Summe ({sleep_phase_sum} min) weicht um {diff} min von Schlafdauer ({data.duration_minutes} min) ab. Max. Toleranz: 5 min. Hinweis: Wachphasen werden nicht zur Schlafdauer gezählt."
+            )
+
+    with get_db() as conn:
+        cur = get_cursor(conn)
+
+        # Upsert: INSERT ... ON CONFLICT DO UPDATE
+        cur.execute("""
+            INSERT INTO sleep_log (
+                profile_id, date, bedtime, wake_time, duration_minutes,
+                quality, wake_count, deep_minutes, rem_minutes, light_minutes,
+                awake_minutes, note, source, updated_at
+            ) VALUES (
+                %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, CURRENT_TIMESTAMP
+            )
+            ON CONFLICT (profile_id, date) DO UPDATE SET
+                bedtime = EXCLUDED.bedtime,
+                wake_time = EXCLUDED.wake_time,
+                duration_minutes = EXCLUDED.duration_minutes,
+                quality = EXCLUDED.quality,
+                wake_count = EXCLUDED.wake_count,
+                deep_minutes = EXCLUDED.deep_minutes,
+                rem_minutes = EXCLUDED.rem_minutes,
+                light_minutes = EXCLUDED.light_minutes,
+                awake_minutes = EXCLUDED.awake_minutes,
+                note = EXCLUDED.note,
+                source = EXCLUDED.source,
+                updated_at = CURRENT_TIMESTAMP
+            RETURNING *
+        """, (
+            pid, data.date, bedtime, wake_time, data.duration_minutes,
+            data.quality, data.wake_count, data.deep_minutes, data.rem_minutes,
+            data.light_minutes, data.awake_minutes, data.note, data.source
+        ))
+
+        row = cur.fetchone()
+        conn.commit()
+
+    return row_to_sleep_response(row)
+
+@router.put("/{id}")
+def update_sleep(
+    id: int,
+    data: SleepCreate,
+    session: dict = Depends(require_auth)
+):
+    """Update existing sleep entry by ID."""
+    pid = session['profile_id']
+
+    # Convert empty strings to None for TIME fields
+    bedtime = data.bedtime if data.bedtime else None
+    wake_time = data.wake_time if data.wake_time else None
+
+    # Plausibility check: sleep phases (deep+rem+light) should sum to duration
+    # Note: awake_minutes is NOT part of sleep duration (tracked separately)
+    if any([data.deep_minutes, data.rem_minutes, data.light_minutes]):
+        sleep_phase_sum = (data.deep_minutes or 0) + (data.rem_minutes or 0) + (data.light_minutes or 0)
+        diff = abs(data.duration_minutes - sleep_phase_sum)
+        if diff > 5:
+            raise HTTPException(
+                400,
+                f"Plausibilitätsprüfung fehlgeschlagen: Schlafphasen-Summe ({sleep_phase_sum} min) weicht um {diff} min von Schlafdauer ({data.duration_minutes} min) ab. Max. Toleranz: 5 min. Hinweis: Wachphasen werden nicht zur Schlafdauer gezählt."
+            )
+
+    with get_db() as conn:
+        cur = get_cursor(conn)
+
+        cur.execute("""
+            UPDATE sleep_log SET
+                date = %s,
+                bedtime = %s,
+                wake_time = %s,
+                duration_minutes = %s,
+                quality = %s,
+                wake_count = %s,
+                deep_minutes = %s,
+                rem_minutes = %s,
+                light_minutes = %s,
+                awake_minutes = %s,
+                note = %s,
+                updated_at = CURRENT_TIMESTAMP
+            WHERE id = %s AND profile_id = %s
+            RETURNING *
+        """, (
+            data.date, bedtime, wake_time, data.duration_minutes,
+            data.quality, data.wake_count, data.deep_minutes, data.rem_minutes,
+            data.light_minutes, data.awake_minutes, data.note, id, pid
+        ))
+
+        row = cur.fetchone()
+        if not row:
+            raise HTTPException(404, "Sleep entry not found")
+
+        conn.commit()
+
+    return row_to_sleep_response(row)
+
+@router.delete("/{id}")
+def delete_sleep(
+    id: int,
+    session: dict = Depends(require_auth)
+):
+    """Delete sleep entry."""
+    pid = session['profile_id']
+
+    with get_db() as conn:
+        cur = get_cursor(conn)
+        cur.execute("""
+            DELETE FROM sleep_log
+            WHERE id = %s AND profile_id = %s
+        """, (id, pid))
+        conn.commit()
+
+    return {"deleted": id}
+
+# ── Stats Endpoints ───────────────────────────────────────────────────────────
+
+@router.get("/stats")
+def get_sleep_stats(
+    days: int = 7,
+    session: dict = Depends(require_auth)
+):
+    """Get sleep statistics (average duration, quality, nights below goal)."""
+    pid = session['profile_id']
+
+    with get_db() as conn:
+        cur = get_cursor(conn)
+
+        # Get sleep goal from profile
+        cur.execute("SELECT sleep_goal_minutes FROM profiles WHERE id = %s", (pid,))
+        profile = cur.fetchone()
+        sleep_goal = profile['sleep_goal_minutes'] if profile and profile['sleep_goal_minutes'] else 450
+
+        # Calculate stats
+        cur.execute("""
+            SELECT
+                AVG(duration_minutes)::FLOAT as avg_duration,
+                AVG(quality)::FLOAT as avg_quality,
+                COUNT(*) as total_nights,
+                COUNT(CASE WHEN duration_minutes < %s THEN 1 END) as nights_below_goal
+            FROM sleep_log
+            WHERE profile_id = %s
+              AND date >= CURRENT_DATE - INTERVAL '%s days'
+        """, (sleep_goal, pid, days))
+
+        stats = cur.fetchone()
+
+    return SleepStatsResponse(
+        avg_duration_minutes=round(stats['avg_duration'], 1) if stats['avg_duration'] else 0,
+        avg_quality=round(stats['avg_quality'], 1) if stats['avg_quality'] else None,
+        total_nights=stats['total_nights'],
+        nights_below_goal=stats['nights_below_goal'],
+        sleep_goal_minutes=sleep_goal
+    )
+
+@router.get("/debt")
+def get_sleep_debt(
+    days: int = 14,
+    session: dict = Depends(require_auth)
+):
+    """Calculate sleep debt over last N days."""
+    pid = session['profile_id']
+
+    with get_db() as conn:
+        cur = get_cursor(conn)
+
+        # Get sleep goal
+        cur.execute("SELECT sleep_goal_minutes FROM profiles WHERE id = %s", (pid,))
+        profile = cur.fetchone()
+        sleep_goal = profile['sleep_goal_minutes'] if profile and profile['sleep_goal_minutes'] else 450
+
+        # Calculate debt
+        cur.execute("""
+            SELECT
+                SUM(%s - duration_minutes) as debt_minutes,
+                COUNT(*) as nights_analyzed
+            FROM sleep_log
+            WHERE profile_id = %s
+              AND date >= CURRENT_DATE - INTERVAL '%s days'
+        """, (sleep_goal, pid, days))
+
+        result = cur.fetchone()
+
+    debt_min = int(result['debt_minutes']) if result['debt_minutes'] else 0
+    nights = result['nights_analyzed'] if result['nights_analyzed'] else 0
+
+    # Format debt
+    if debt_min == 0:
+        formatted = "0 – kein Defizit"
+    elif debt_min > 0:
+        formatted = f"+{format_duration(debt_min)}"
+    else:
+        formatted = f"−{format_duration(abs(debt_min))}"
+
+    return SleepDebtResponse(
+        sleep_debt_minutes=debt_min,
+        sleep_debt_formatted=formatted,
+        days_analyzed=nights,
+        sleep_goal_minutes=sleep_goal
+    )
+
+@router.get("/trend")
+def get_sleep_trend(
+    days: int = 30,
+    session: dict = Depends(require_auth)
+):
+    """Get sleep duration and quality trend over time."""
+    pid = session['profile_id']
+
+    with get_db() as conn:
+        cur = get_cursor(conn)
+        cur.execute("""
+            SELECT
+                date,
+                duration_minutes,
+                quality
+            FROM sleep_log
+            WHERE profile_id = %s
+              AND date >= CURRENT_DATE - INTERVAL '%s days'
+            ORDER BY date ASC
+        """, (pid, days))
+        rows = cur.fetchall()
+
+    return [
+        {
+            "date": str(row['date']),
+            "duration_minutes": row['duration_minutes'],
+            "quality": row['quality']
+        }
+        for row in rows
+    ]
+
+@router.get("/phases")
+def get_sleep_phases(
+    days: int = 30,
+    session: dict = Depends(require_auth)
+):
+    """Get sleep phase distribution (deep, REM, light, awake) over time."""
+    pid = session['profile_id']
+
+    with get_db() as conn:
+        cur = get_cursor(conn)
+        cur.execute("""
+            SELECT
+                date,
+                deep_minutes,
+                rem_minutes,
+                light_minutes,
+                awake_minutes,
+                duration_minutes
+            FROM sleep_log
+            WHERE profile_id = %s
+              AND date >= CURRENT_DATE - INTERVAL '%s days'
+              AND (deep_minutes IS NOT NULL OR rem_minutes IS NOT NULL)
+            ORDER BY date ASC
+        """, (pid, days))
+        rows = cur.fetchall()
+
+    return [
+        {
+            "date": str(row['date']),
+            "deep_minutes": row['deep_minutes'],
+            "rem_minutes": row['rem_minutes'],
+            "light_minutes": row['light_minutes'],
+            "awake_minutes": row['awake_minutes'],
+            "deep_percent": calculate_phase_percent(row['deep_minutes'], row['duration_minutes']),
+            "rem_percent": calculate_phase_percent(row['rem_minutes'], row['duration_minutes'])
+        }
+        for row in rows
+    ]
+
+# ── Import Endpoints ──────────────────────────────────────────────────────────
+
+@router.post("/import/apple-health")
+async def import_apple_health_sleep(
+    file: UploadFile = File(...),
+    session: dict = Depends(require_auth)
+):
+    """
+    Import sleep data from Apple Health CSV export.
+
+    Expected CSV format:
+    Start,End,Duration (hr),Value,Source
+    2026-03-14 22:44:23,2026-03-14 23:00:19,0.266,Kern,Apple Watch
+
+    - Aggregates segments by night (wake date)
+    - Maps German phase names: Kern→light, REM→rem, Tief→deep, Wach→awake
+    - Stores raw segments in JSONB
+    - Does NOT overwrite manual entries (source='manual')
+    """
+    pid = session['profile_id']
+
+    # Read CSV
+    content = await file.read()
+    csv_text = content.decode('utf-8-sig')  # Handle BOM
+    reader = csv.DictReader(io.StringIO(csv_text))
+
+    # Phase mapping (German → English)
+    phase_map = {
+        'Kern': 'light',
+        'REM': 'rem',
+        'Tief': 'deep',
+        'Wach': 'awake',
+        'Schlafend': None  # Ignore initial sleep entry
+    }
+
+    # Parse segments
+    segments = []
+    for row in reader:
+        phase_de = row['Value'].strip()
+        phase_en = phase_map.get(phase_de)
+
+        if phase_en is None:  # Skip "Schlafend"
+            continue
+
+        start_dt = datetime.strptime(row['Start'], '%Y-%m-%d %H:%M:%S')
+        end_dt = datetime.strptime(row['End'], '%Y-%m-%d %H:%M:%S')
+        duration_hr = float(row['Duration (hr)'])
+        duration_min = int(duration_hr * 60)
+
+        segments.append({
+            'start': start_dt,
+            'end': end_dt,
+            'duration_min': duration_min,
+            'phase': phase_en
+        })
+
+    # Sort segments chronologically
+    segments.sort(key=lambda s: s['start'])
+
+    # Group segments into nights (gap-based)
+    # If gap between segments > 2 hours → new night
+    nights = []
+    current_night = None
+
+    for seg in segments:
+        # Start new night if:
+        # 1. First segment
+        # 2. Gap > 2 hours since last segment
+        if current_night is None or (seg['start'] - current_night['wake_time']).total_seconds() > 7200:
+            current_night = {
+                'bedtime': seg['start'],
+                'wake_time': seg['end'],
+                'segments': [],
+                'deep_minutes': 0,
+                'rem_minutes': 0,
+                'light_minutes': 0,
+                'awake_minutes': 0
+            }
+            nights.append(current_night)
+
+        # Add segment to current night
+        current_night['segments'].append(seg)
+        current_night['wake_time'] = max(current_night['wake_time'], seg['end'])
+        current_night['bedtime'] = min(current_night['bedtime'], seg['start'])
+
+        # Sum phases
+        if seg['phase'] == 'deep':
+            current_night['deep_minutes'] += seg['duration_min']
+        elif seg['phase'] == 'rem':
+            current_night['rem_minutes'] += seg['duration_min']
+        elif seg['phase'] == 'light':
+            current_night['light_minutes'] += seg['duration_min']
+        elif seg['phase'] == 'awake':
+            current_night['awake_minutes'] += seg['duration_min']
+
+    # Convert nights list to dict with wake_date as key
+    nights_dict = {}
+    for night in nights:
+        wake_date = night['wake_time'].date()  # Date when you woke up
+        nights_dict[wake_date] = night
+
+    # Insert nights
+    imported = 0
+    skipped = 0
+
+    with get_db() as conn:
+        cur = get_cursor(conn)
+
+        for date, night in nights_dict.items():
+            # Calculate sleep duration (deep + rem + light, WITHOUT awake)
+            # Note: awake_minutes tracked separately, not part of sleep duration
+            duration_minutes = (
+                night['deep_minutes'] +
+                night['rem_minutes'] +
+                night['light_minutes']
+            )
+
+            # Calculate wake_count (number of awake segments)
+            wake_count = sum(1 for seg in night['segments'] if seg['phase'] == 'awake')
+
+            # Prepare JSONB segments with full datetime
+            sleep_segments = [
+                {
+                    'phase': seg['phase'],
+                    'start': seg['start'].isoformat(),  # Full datetime: 2026-03-21T22:30:00
+                    'end': seg['end'].isoformat(),      # Full datetime: 2026-03-21T23:15:00
+                    'duration_min': seg['duration_min']
+                }
+                for seg in night['segments']
+            ]
+
+            # Check if manual entry exists - do NOT overwrite
+            cur.execute("""
+                SELECT id, source FROM sleep_log
+                WHERE profile_id = %s AND date = %s
+            """, (pid, date))
+            existing = cur.fetchone()
+
+            if existing and existing['source'] == 'manual':
+                skipped += 1
+                continue  # Skip - don't overwrite manual entries
+
+            # Upsert (only if not manual)
+            # If entry exists and is NOT manual → update
+            # If entry doesn't exist → insert
+            if existing:
+                # Update existing non-manual entry
+                cur.execute("""
+                    UPDATE sleep_log SET
+                        bedtime = %s,
+                        wake_time = %s,
+                        duration_minutes = %s,
+                        wake_count = %s,
+                        deep_minutes = %s,
+                        rem_minutes = %s,
+                        light_minutes = %s,
+                        awake_minutes = %s,
+                        sleep_segments = %s,
+                        source = 'apple_health',
+                        updated_at = CURRENT_TIMESTAMP
+                    WHERE id = %s AND profile_id = %s
+                """, (
+                    night['bedtime'].time(),
+                    night['wake_time'].time(),
+                    duration_minutes,
+                    wake_count,
+                    night['deep_minutes'],
+                    night['rem_minutes'],
+                    night['light_minutes'],
+                    night['awake_minutes'],
+                    json.dumps(sleep_segments),
+                    existing['id'],
+                    pid
+                ))
+            else:
+                # Insert new entry
+                cur.execute("""
+                    INSERT INTO sleep_log (
+                        profile_id, date, bedtime, wake_time, duration_minutes,
+                        wake_count, deep_minutes, rem_minutes, light_minutes, awake_minutes,
+                        sleep_segments, source, created_at, updated_at
+                    ) VALUES (
+                        %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, 'apple_health', CURRENT_TIMESTAMP, CURRENT_TIMESTAMP
+                    )
+                """, (
+                    pid,
+                    date,
+                    night['bedtime'].time(),
+                    night['wake_time'].time(),
+                    duration_minutes,
+                    wake_count,
+                    night['deep_minutes'],
+                    night['rem_minutes'],
+                    night['light_minutes'],
+                    night['awake_minutes'],
+                    json.dumps(sleep_segments)
+                ))
+
+            imported += 1
+
+        conn.commit()
+
+    return {
+        "imported": imported,
+        "skipped": skipped,
+        "total_nights": len(nights_dict),
+        "message": f"{imported} Nächte importiert, {skipped} übersprungen (manuelle Einträge)"
+    }

frontend/src/App.jsx

@@ -30,6 +30,7 @@ import AdminUserRestrictionsPage from './pages/AdminUserRestrictionsPage'
 import AdminTrainingTypesPage from './pages/AdminTrainingTypesPage'
 import AdminActivityMappingsPage from './pages/AdminActivityMappingsPage'
 import SubscriptionPage from './pages/SubscriptionPage'
+import SleepPage from './pages/SleepPage'
 import './app.css'
 
 function Nav() {
@@ -164,6 +165,7 @@ function AppShell() {
           <Route path="/circum"    element={<CircumScreen/>}/>
           <Route path="/caliper"   element={<CaliperScreen/>}/>
           <Route path="/history"   element={<History/>}/>
+          <Route path="/sleep"     element={<SleepPage/>}/>
           <Route path="/nutrition" element={<NutritionPage/>}/>
           <Route path="/activity"  element={<ActivityPage/>}/>
           <Route path="/analysis"  element={<Analysis/>}/>

frontend/src/app.css

@@ -130,6 +130,10 @@ body { font-family: var(--font); background: var(--bg); color: var(--text1); -we
 .empty-state h3 { font-size: 16px; color: var(--text2); margin-bottom: 6px; }
 .spinner { width: 20px; height: 20px; border: 2px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.7s linear infinite; display: inline-block; }
 @keyframes spin { to { transform: rotate(360deg); } }
+@keyframes slideDown {
+  from { transform: translate(-50%, -20px); opacity: 0; }
+  to { transform: translate(-50%, 0); opacity: 1; }
+}
 
 /* Additional vars */
 :root {

frontend/src/components/SleepWidget.jsx

@@ -0,0 +1,111 @@
+import { useState, useEffect } from 'react'
+import { useNavigate } from 'react-router-dom'
+import { Moon, Plus } from 'lucide-react'
+import { api } from '../utils/api'
+
+/**
+ * SleepWidget - Dashboard widget for sleep tracking (v9d Phase 2b)
+ *
+ * Shows:
+ * - Last night's sleep (if exists)
+ * - 7-day average
+ * - Quick action button to add entry or view details
+ */
+export default function SleepWidget() {
+  const nav = useNavigate()
+  const [loading, setLoading] = useState(true)
+  const [lastNight, setLastNight] = useState(null)
+  const [stats, setStats] = useState(null)
+
+  useEffect(() => {
+    load()
+  }, [])
+
+  const load = () => {
+    Promise.all([
+      api.listSleep(1),  // Get last entry
+      api.getSleepStats(7).catch(() => null) // Stats optional
+    ]).then(([sleepData, statsData]) => {
+      setLastNight(sleepData[0] || null)
+      setStats(statsData)
+      setLoading(false)
+    }).catch(err => {
+      console.error('Failed to load sleep widget:', err)
+      setLoading(false)
+    })
+  }
+
+  const formatDuration = (minutes) => {
+    const h = Math.floor(minutes / 60)
+    const m = minutes % 60
+    return `${h}h ${m}min`
+  }
+
+  const renderStars = (quality) => {
+    if (!quality) return '—'
+    return '★'.repeat(quality) + '☆'.repeat(5 - quality)
+  }
+
+  if (loading) {
+    return (
+      <div className="card" style={{ padding: 16 }}>
+        <div style={{ display: 'flex', alignItems: 'center', gap: 8, marginBottom: 12 }}>
+          <Moon size={16} color="var(--accent)" />
+          <div style={{ fontWeight: 600, fontSize: 14 }}>Schlaf</div>
+        </div>
+        <div style={{ textAlign: 'center', padding: 20 }}>
+          <div className="spinner" style={{ width: 20, height: 20, margin: '0 auto' }} />
+        </div>
+      </div>
+    )
+  }
+
+  return (
+    <div className="card" style={{ padding: 16 }}>
+      <div style={{ display: 'flex', alignItems: 'center', gap: 8, marginBottom: 12 }}>
+        <Moon size={16} color="var(--accent)" />
+        <div style={{ fontWeight: 600, fontSize: 14 }}>Schlaf</div>
+      </div>
+
+      {lastNight ? (
+        <div style={{ display: 'flex', flexDirection: 'column', gap: 8 }}>
+          <div style={{ fontSize: 12, color: 'var(--text3)' }}>Letzte Nacht:</div>
+          <div style={{ fontSize: 16, fontWeight: 700 }}>
+            {lastNight.duration_formatted} {lastNight.quality && `· ${renderStars(lastNight.quality)}`}
+          </div>
+          <div style={{ fontSize: 11, color: 'var(--text3)' }}>
+            {new Date(lastNight.date).toLocaleDateString('de-DE', { weekday: 'short', day: '2-digit', month: '2-digit' })}
+          </div>
+
+          {stats && stats.total_nights > 0 && (
+            <div style={{ marginTop: 8, paddingTop: 8, borderTop: '1px solid var(--border)' }}>
+              <div style={{ fontSize: 11, color: 'var(--text3)' }}>Ø 7 Tage:</div>
+              <div style={{ fontSize: 13, fontWeight: 600 }}>
+                {formatDuration(Math.round(stats.avg_duration_minutes))}
+                {stats.avg_quality && ` · ${stats.avg_quality.toFixed(1)}/5`}
+              </div>
+            </div>
+          )}
+        </div>
+      ) : (
+        <div style={{ textAlign: 'center', padding: '12px 0', color: 'var(--text3)' }}>
+          <div style={{ fontSize: 12, marginBottom: 12 }}>Noch keine Einträge erfasst</div>
+        </div>
+      )}
+
+      <button
+        onClick={() => nav('/sleep')}
+        className="btn btn-secondary btn-full"
+        style={{ marginTop: 12, fontSize: 12 }}
+      >
+        {lastNight ? (
+          <>Zur Übersicht</>
+        ) : (
+          <>
+            <Plus size={14} /> Schlaf erfassen
+          </>
+        )}
+      </button>
+    </div>
+  )
+}

frontend/src/pages/CaptureHub.jsx

@@ -45,6 +45,13 @@ const ENTRIES = [
     to: '/activity',
     color: '#D4537E',
   },
+  {
+    icon: '🌙',
+    label: 'Schlaf',
+    sub: 'Schlafdaten erfassen oder Apple Health importieren',
+    to: '/sleep',
+    color: '#7B68EE',
+  },
   {
     icon: '📖',
     label: 'Messanleitung',

frontend/src/pages/Dashboard.jsx

@@ -11,6 +11,7 @@ import { getBfCategory } from '../utils/calc'
 import TrialBanner from '../components/TrialBanner'
 import EmailVerificationBanner from '../components/EmailVerificationBanner'
 import TrainingTypeDistribution from '../components/TrainingTypeDistribution'
+import SleepWidget from '../components/SleepWidget'
 import { getInterpretation, getStatusColor, getStatusBg } from '../utils/interpret'
 import Markdown from '../utils/Markdown'
 import dayjs from 'dayjs'
@@ -471,6 +472,11 @@ export default function Dashboard() {
           )}
         </div>
 
+        {/* Sleep Widget */}
+        <div style={{marginBottom:16}}>
+          <SleepWidget/>
+        </div>
+
         {/* Training Type Distribution */}
         {activities.length > 0 && (
           <div className="card section-gap" style={{marginBottom:16}}>

frontend/src/utils/api.js

@@ -212,4 +212,22 @@ export const api = {
   adminUpdateActivityMapping: (id,d) => req(`/admin/activity-mappings/${id}`, jput(d)),
   adminDeleteActivityMapping: (id)   => req(`/admin/activity-mappings/${id}`, {method:'DELETE'}),
   adminGetMappingCoverage:    ()     => req('/admin/activity-mappings/stats/coverage'),
+
+  // Sleep Module (v9d Phase 2b)
+  listSleep:       (l=90)  => req(`/sleep?limit=${l}`),
+  getSleepByDate:  (date)  => req(`/sleep/by-date/${date}`),
+  createSleep:     (d)     => req('/sleep', json(d)),
+  updateSleep:     (id,d)  => req(`/sleep/${id}`, jput(d)),
+  deleteSleep:     (id)    => req(`/sleep/${id}`, {method:'DELETE'}),
+  getSleepStats:   (days=7) => req(`/sleep/stats?days=${days}`),
+  getSleepDebt:    (days=14) => req(`/sleep/debt?days=${days}`),
+  getSleepTrend:   (days=30) => req(`/sleep/trend?days=${days}`),
+  getSleepPhases:  (days=30) => req(`/sleep/phases?days=${days}`),
+
+  // Sleep Import (v9d Phase 2c)
+  importAppleHealthSleep: (file) => {
+    const fd = new FormData()
+    fd.append('file', file)
+    return req('/sleep/import/apple-health', {method:'POST', body:fd})
+  },
 }