feat(settings): add SMTP admin configuration

.env.example

@@ -29,11 +29,14 @@ KNOWLEDGE_MAX_UPLOAD_MB=50
 # Produktiv als langen Zufallswert setzen. Nicht im Frontend verwenden.
 OLYMPUS_REPAIR_INTAKE_TOKEN=
 
-# Optionale Website-Basis-URL fuer oeffentliche Reparaturstatuslinks.
+# Env-Fallback fuer oeffentliche Reparaturstatuslinks.
+# Bevorzugt wird die Admin-Konfiguration unter /settings.
 # Beispiel: https://test.funktechnik-schubert.de/status
 PUBLIC_REPAIR_STATUS_BASE_URL=
 
-# Optionaler SMTP-Versand fuer automatische Reparaturstatusmails.
+# Env-Fallback fuer SMTP. Bevorzugt wird die Admin-Konfiguration unter /settings.
+# Fuer Apple Mail/iCloud: smtp.mail.me.com, Port 587, TLS aktiv,
+# Benutzername = vollstaendige Mailadresse, Passwort = app-spezifisches Passwort.
 SMTP_HOST=
 SMTP_PORT=587
 SMTP_USERNAME=

ARCHITECTURE.md

@@ -290,12 +290,38 @@ Vorlagen enthalten deutsche Betreffzeilen und Texte mit Platzhaltern fuer `repai
 
 Ab v0.8.3 sendet Hermes beim Statuswechsel automatisch eine Statusmail, wenn eine Kunden-E-Mail vorhanden ist. Fuer jede Mail wird ein frischer sicherer Statuslink erzeugt, weil Klartexttokens nicht gespeichert werden. Ist SMTP nicht konfiguriert oder schlaegt der Versand fehl, wird ein `repair_notification_events`-Eintrag mit `skipped` oder `failed` geschrieben und ein Audit-Eintrag erzeugt.
 
+Ab v0.8.4 wird SMTP bevorzugt ueber `system_settings` aus PostgreSQL geladen. Nur wenn die Admin-Konfiguration deaktiviert, unvollstaendig oder nicht vorhanden ist, nutzt Hermes die Env Vars als Fallback. Das SMTP-Passwort wird nie an Athena zurueckgegeben; die API liefert nur `password_is_set`. Verschluesselung at rest ist in der Struktur vorbereitet und fuer v0.8.x als Sicherheitsausbau geplant.
+
 Hermes-Endpunkt fuer manuellen Neuversand:
 
 - `POST /repairs/{id}/send-status-mail`
 
 Athena ruft diesen Endpunkt ausschliesslich ueber die BFF-Route `/api/repairs/[id]/send-status-mail` auf.
 
+### System Settings
+
+`system_settings` speichert zentrale Betriebswerte als Key-Value-Daten:
+
+- `smtp.host`
+- `smtp.port`
+- `smtp.username`
+- `smtp.password`
+- `smtp.from_email`
+- `smtp.from_name`
+- `smtp.use_tls`
+- `smtp.enabled`
+- `public.repair_status_base_url`
+
+Hermes-Endpunkte:
+
+- `GET /system-settings/smtp`
+- `PUT /system-settings/smtp`
+- `POST /system-settings/smtp/test`
+- `GET /system-settings/public-links`
+- `PUT /system-settings/public-links`
+
+Athena ruft diese Endpunkte ausschliesslich ueber BFF-Routen unter `/api/system-settings/...` auf. Mutierende Requests verwenden den bestehenden Same-Origin-Schutz. Zugriff erfordert `system_settings.manage`, das der Administratorrolle zugewiesen ist.
+
 ### Website Repair Intake
 
 Hermes stellt `POST /public/repair-intake` fuer eine spaetere serverseitige Website-Anbindung bereit.
@@ -902,10 +928,10 @@ docker-compose.yml
 : Server-zu-Server Token fuer `POST /public/repair-intake`. Dieser Wert darf nicht im Frontend oder in Logs erscheinen.
 
 `PUBLIC_REPAIR_STATUS_BASE_URL`
-: Optionale Basis-URL fuer von Olympus erzeugte oeffentliche Reparaturstatuslinks, z. B. `https://test.funktechnik-schubert.de/status`. Wenn leer, gibt Hermes weiterhin relative Links im Format `/status/<token>` zurueck.
+: Env-Fallback fuer von Olympus erzeugte oeffentliche Reparaturstatuslinks, z. B. `https://test.funktechnik-schubert.de/status`. Bevorzugt wird `public.repair_status_base_url` aus der Admin-Konfiguration. Wenn beides leer ist, gibt Hermes weiterhin relative Links im Format `/status/<token>` zurueck.
 
 `SMTP_HOST`, `SMTP_PORT`, `SMTP_USERNAME`, `SMTP_PASSWORD`, `SMTP_FROM_EMAIL`, `SMTP_FROM_NAME`, `SMTP_USE_TLS`
-: Optionale SMTP-Konfiguration fuer automatische Reparaturstatusmails. `SMTP_PASSWORD` darf nicht geloggt oder committed werden.
+: Env-Fallback fuer automatische Reparaturstatusmails. Bevorzugt wird die Admin-Konfiguration unter `/settings`. `SMTP_PASSWORD` darf nicht geloggt, committed oder an Athena zurueckgegeben werden. Fuer Apple Mail/iCloud: `smtp.mail.me.com`, Port `587`, TLS/STARTTLS aktiv, Benutzername vollstaendige Mailadresse, Passwort app-spezifisches Passwort.
 
 ### Athena
 

README-DEV.md

@@ -44,6 +44,8 @@ SMTP_FROM_NAME=Funktechnik Schubert
 SMTP_USE_TLS=true
 ```
 
+`PUBLIC_REPAIR_STATUS_BASE_URL` und die SMTP-Werte sind ab v0.8.4 Fallbacks. Bevorzugt wird die Admin-Konfiguration in Olympus unter `/settings`. Fuer Apple Mail/iCloud gilt: `smtp.mail.me.com`, Port `587`, TLS/STARTTLS aktiv, Benutzername = vollstaendige Mailadresse, Passwort = app-spezifisches Passwort.
+
 Wenn `SECRET_KEY` Sonderzeichen wie `$` enthaelt, den Wert in der Shell oder Compose-Umgebung korrekt quoten. Secrets gehoeren nicht ins Git.
 
 ## Docker Netzwerk
@@ -169,6 +171,7 @@ Statuslink-Konzept:
 - Tokens sind lang, zufaellig und werden nur gehasht gespeichert.
 - Der Klartexttoken wird nur einmal bei Erstellung zurueckgegeben.
 - `PUBLIC_REPAIR_STATUS_BASE_URL` kann auf die Website-Route zeigen, z. B. `https://test.funktechnik-schubert.de/status`.
+- Ab v0.8.4 kann die Basis-URL im Adminbereich unter `/settings` gepflegt werden; die Env Var bleibt Fallback.
 - Oeffentliche Statusdaten kommen spaeter ueber `GET /public/repairs/status/{token}`.
 - Die Antwort enthaelt keine Kundendaten, keine internen Notizen und keine nicht freigegebenen Diagnosen.
 
@@ -178,8 +181,9 @@ Benachrichtigungen:
 - `repair_notification_events` dokumentiert jeden Versandversuch.
 - Beim Statuswechsel wird automatisch eine Statusmail verarbeitet.
 - Ohne SMTP-Konfiguration bleibt der Statuswechsel erfolgreich; der Versandversuch wird als `skipped` dokumentiert.
-- SMTP wird ueber `SMTP_HOST`, `SMTP_PORT`, `SMTP_USERNAME`, `SMTP_PASSWORD`, `SMTP_FROM_EMAIL`, `SMTP_FROM_NAME` und `SMTP_USE_TLS` konfiguriert.
+- SMTP wird bevorzugt ueber `/settings` konfiguriert. `SMTP_HOST`, `SMTP_PORT`, `SMTP_USERNAME`, `SMTP_PASSWORD`, `SMTP_FROM_EMAIL`, `SMTP_FROM_NAME` und `SMTP_USE_TLS` bleiben als Env-Fallback erhalten.
-- `SMTP_PASSWORD` gehoert ausschliesslich in die Umgebung und nie ins Git oder in Logs.
+- `SMTP_PASSWORD` wird nicht an Athena zurueckgegeben und gehoert nie ins Git oder in Logs.
+- Verschluesselung at rest ist fuer v0.8.x vorbereitet/geplant; bis dahin bleibt das Passwort serverseitig in `system_settings` und wird in Responses/Audits maskiert.
 
 Vorbereitete Website-/Portal-Routen fuer spaeter:
 

ROADMAP.md

@@ -113,7 +113,17 @@ Die Roadmap beschreibt die geplante fachliche Entwicklung von Olympus CRM. Archi
 - Dashboard-Kennzahlen fuer Statusmails und Reparaturen ohne Kundenmail
 - SMTP-Ausfall blockiert keine Reparaturprozesse
 
-## v0.8.4 - Kundenportal, geplant
+## v0.8.4 - Admin SMTP Settings
+
+- SMTP-Konfiguration im Olympus-Webinterface unter `/settings`
+- Testmail-Versand mit Audit-Log
+- `system_settings` als zentrale Tabelle fuer Systemkonfiguration
+- Env Vars bleiben als Fallback fuer SMTP und Public Repair Status Base URL
+- Statusmail-Versand nutzt bevorzugt Admin-Konfiguration
+- Passwort wird nicht an Athena zurueckgegeben
+- Encryption at rest fuer Secrets bleibt als v0.8.x-Haertung geplant
+
+## v0.8.5 - Kundenportal, geplant
 
 - `/portal/login` fuer spaeteren Kundenlogin
 - Separates Authentifizierungsmodell fuer Kunden

backend/hermes/.env.example

@@ -19,7 +19,11 @@ STORAGE_MAX_UPLOAD_MB=50
 KNOWLEDGE_STORAGE_PATH=/data/knowledge
 KNOWLEDGE_MAX_UPLOAD_MB=50
 OLYMPUS_REPAIR_INTAKE_TOKEN=
+# Env-Fallback. Bevorzugt wird die Admin-Konfiguration unter /settings.
 PUBLIC_REPAIR_STATUS_BASE_URL=
+# Env-Fallback. Bevorzugt wird die Admin-Konfiguration unter /settings.
+# Apple Mail/iCloud: smtp.mail.me.com, Port 587, TLS aktiv,
+# Benutzername = vollstaendige Mailadresse, Passwort = app-spezifisches Passwort.
 SMTP_HOST=
 SMTP_PORT=587
 SMTP_USERNAME=

backend/hermes/alembic/env.py

@@ -13,6 +13,7 @@ import app.models.knowledge
 import app.models.audit
 import app.models.rbac
 import app.models.repair
+import app.models.system_setting
 
 config = context.config
 

backend/hermes/alembic/versions/f2b8d4e6a910_create_system_settings.py

@@ -0,0 +1,69 @@
+"""create system settings
+
+Revision ID: f2b8d4e6a910
+Revises: e9a7c3d5b812
+Create Date: 2026-07-04 14:00:00.000000
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+revision: str = "f2b8d4e6a910"
+down_revision: Union[str, Sequence[str], None] = "e9a7c3d5b812"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "system_settings",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("key", sa.String(length=160), nullable=False),
+        sa.Column("value", sa.Text(), server_default="", nullable=False),
+        sa.Column("is_secret", sa.Boolean(), server_default="false", nullable=False),
+        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+        sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("key"),
+    )
+    op.create_index(op.f("ix_system_settings_key"), "system_settings", ["key"], unique=True)
+
+    op.execute(
+        """
+        INSERT INTO permissions (name, display_name, description, module)
+        VALUES (
+            'system_settings.manage',
+            'Systemeinstellungen verwalten',
+            'SMTP und öffentliche Systemlinks verwalten',
+            'system'
+        )
+        ON CONFLICT (name) DO NOTHING
+        """
+    )
+    op.execute(
+        """
+        INSERT INTO role_permissions (role_id, permission_id)
+        SELECT roles.id, permissions.id
+        FROM roles, permissions
+        WHERE roles.name = 'administrator'
+          AND permissions.name = 'system_settings.manage'
+        ON CONFLICT DO NOTHING
+        """
+    )
+
+
+def downgrade() -> None:
+    op.execute(
+        """
+        DELETE FROM role_permissions
+        WHERE permission_id IN (
+            SELECT id FROM permissions WHERE name = 'system_settings.manage'
+        )
+        """
+    )
+    op.execute("DELETE FROM permissions WHERE name = 'system_settings.manage'")
+    op.drop_index(op.f("ix_system_settings_key"), table_name="system_settings")
+    op.drop_table("system_settings")

backend/hermes/app/api/dashboard.py

@@ -7,11 +7,13 @@ from sqlalchemy.orm import Session
 from app.core.rbac import get_user_permission_names, require_permission
 from app.db.database import get_db
 from app.models.rbac import Role
+from app.models.audit import AuditLog
 from app.models.user import User
 from app.repositories.customer_repository import CustomerRepository
 from app.repositories.repair_repository import RepairRepository
 from app.repositories.user_repository import UserRepository
-from app.schemas.dashboard import DashboardSummary, EmptyWidget, MetricCard
+from app.schemas.dashboard import DashboardSummary, EmptyWidget, MetricCard, SystemStatusItem
+from app.services.system_settings_service import SystemSettingsService
 
 logger = logging.getLogger(__name__)
 
@@ -32,6 +34,7 @@ def get_dashboard_summary(
     users: list[MetricCard] = []
     roles: list[MetricCard] = []
     repairs: list[MetricCard] = []
+    system_status: list[SystemStatusItem] = []
 
     if "customers.read" in permissions:
         customers = [
@@ -69,6 +72,43 @@ def get_dashboard_summary(
             MetricCard(label="Offen ohne Kundenmail", value=RepairRepository.count_open_repairs_without_customer_email(db)),
         ]
 
+    if "system_settings.manage" in permissions:
+        smtp_config = SystemSettingsService.get_smtp_runtime_config(db)
+        public_links = SystemSettingsService.get_public_links_settings(db)
+        latest_testmail = db.scalar(
+            select(AuditLog)
+            .where(AuditLog.action.in_(["system_settings.smtp.test_sent", "system_settings.smtp.test_failed"]))
+            .order_by(AuditLog.created_at.desc(), AuditLog.id.desc())
+            .limit(1)
+        )
+        latest_failed_status_mail = RepairRepository.latest_failed_status_mail(db)
+        system_status = [
+            SystemStatusItem(
+                label="SMTP-Konfiguration",
+                value={
+                    "database": "Admin-Konfiguration",
+                    "environment": "Umgebung",
+                    "missing": "Nicht konfiguriert",
+                }[smtp_config.source],
+                status="ok" if smtp_config.is_configured else "warning",
+            ),
+            SystemStatusItem(
+                label="Public Status Base URL",
+                value=public_links.repair_status_base_url or "Nicht konfiguriert",
+                status="ok" if public_links.repair_status_base_url else "warning",
+            ),
+            SystemStatusItem(
+                label="Letzte SMTP-Testmail",
+                value=latest_testmail.created_at.isoformat() if latest_testmail else "Noch keine Testmail",
+                status="info" if latest_testmail else "warning",
+            ),
+            SystemStatusItem(
+                label="Letzte fehlgeschlagene Statusmail",
+                value=latest_failed_status_mail.created_at.isoformat() if latest_failed_status_mail else "Keine Fehler",
+                status="warning" if latest_failed_status_mail else "ok",
+            ),
+        ]
+
     logger.info("dashboard.summary", extra={"actor_user_id": current_user.id})
 
     return DashboardSummary(
@@ -77,6 +117,7 @@ def get_dashboard_summary(
         users=users,
         roles=roles,
         repairs=repairs,
+        system_status=system_status,
         activities=EmptyWidget(
             title="Letzte Aktivitäten",
             message="Noch keine Aktivitäten vorhanden.",

backend/hermes/app/api/system_settings.py

@@ -0,0 +1,67 @@
+from fastapi import APIRouter, Depends
+from sqlalchemy.orm import Session
+from starlette.requests import Request
+
+from app.core.rbac import require_permission
+from app.db.database import get_db
+from app.models.user import User
+from app.schemas.system_setting import (
+    PublicLinksSettingsResponse,
+    PublicLinksSettingsUpdate,
+    SmtpSettingsResponse,
+    SmtpSettingsUpdate,
+    SmtpTestRequest,
+    SmtpTestResponse,
+)
+from app.services.system_settings_service import SystemSettingsService
+
+router = APIRouter(
+    prefix="/system-settings",
+    tags=["System Settings"],
+)
+
+
+@router.get("/smtp", response_model=SmtpSettingsResponse)
+def get_smtp_settings(
+    db: Session = Depends(get_db),
+    current_user: User = Depends(require_permission("system_settings.manage")),
+):
+    return SystemSettingsService.get_smtp_settings(db)
+
+
+@router.put("/smtp", response_model=SmtpSettingsResponse)
+def update_smtp_settings(
+    payload: SmtpSettingsUpdate,
+    request: Request,
+    db: Session = Depends(get_db),
+    current_user: User = Depends(require_permission("system_settings.manage")),
+):
+    return SystemSettingsService.update_smtp_settings(db, payload, actor=current_user, request=request)
+
+
+@router.post("/smtp/test", response_model=SmtpTestResponse)
+def send_smtp_test_mail(
+    payload: SmtpTestRequest,
+    request: Request,
+    db: Session = Depends(get_db),
+    current_user: User = Depends(require_permission("system_settings.manage")),
+):
+    return SystemSettingsService.send_test_mail(db, payload.recipient, actor=current_user, request=request)
+
+
+@router.get("/public-links", response_model=PublicLinksSettingsResponse)
+def get_public_links_settings(
+    db: Session = Depends(get_db),
+    current_user: User = Depends(require_permission("system_settings.manage")),
+):
+    return SystemSettingsService.get_public_links_settings(db)
+
+
+@router.put("/public-links", response_model=PublicLinksSettingsResponse)
+def update_public_links_settings(
+    payload: PublicLinksSettingsUpdate,
+    request: Request,
+    db: Session = Depends(get_db),
+    current_user: User = Depends(require_permission("system_settings.manage")),
+):
+    return SystemSettingsService.update_public_links_settings(db, payload, actor=current_user, request=request)

backend/hermes/app/db/database.py

@@ -25,6 +25,8 @@ import app.models.customer
 import app.models.knowledge
 import app.models.audit
 import app.models.user
+import app.models.repair
+import app.models.system_setting
 
 
 def get_db():

backend/hermes/app/main.py

@@ -17,6 +17,7 @@ from app.api.knowledge import router as knowledge_router
 from app.api.permissions import router as permissions_router
 from app.api.repairs import router as repairs_router
 from app.api.roles import router as roles_router
+from app.api.system_settings import router as system_settings_router
 from app.api.users import router as users_router
 from app.db.database import SessionLocal
 from app.db.health import check_database
@@ -42,6 +43,7 @@ app.include_router(customers_router)
 app.include_router(knowledge_router)
 app.include_router(repairs_router)
 app.include_router(dashboard_router)
+app.include_router(system_settings_router)
 
 logger = logging.getLogger(__name__)
 

backend/hermes/app/models/system_setting.py

@@ -0,0 +1,21 @@
+from datetime import datetime
+
+from sqlalchemy import Boolean, DateTime, String, Text, func
+from sqlalchemy.orm import Mapped, mapped_column
+
+from app.db.database import Base
+
+
+class SystemSetting(Base):
+    __tablename__ = "system_settings"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    key: Mapped[str] = mapped_column(String(160), unique=True, index=True)
+    value: Mapped[str] = mapped_column(Text, default="", server_default="")
+    is_secret: Mapped[bool] = mapped_column(Boolean, default=False, server_default="false")
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
+    updated_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True),
+        server_default=func.now(),
+        onupdate=func.now(),
+    )

backend/hermes/app/rbac/defaults.py

@@ -69,6 +69,7 @@ STANDARD_PERMISSIONS = [
     ("dashboard.read", "Dashboard lesen", "Dashboard anzeigen", "dashboard"),
     ("system.settings.read", "Einstellungen lesen", "Systemeinstellungen anzeigen", "system"),
     ("system.settings.update", "Einstellungen bearbeiten", "Systemeinstellungen aktualisieren", "system"),
+    ("system_settings.manage", "Systemeinstellungen verwalten", "SMTP und öffentliche Systemlinks verwalten", "system"),
     ("audit_logs.read", "Audit Logs lesen", "Audit Logs anzeigen", "audit_logs"),
     ("knowledge.read", "Wissen lesen", "Wissensdatenbank anzeigen", "knowledge"),
     ("knowledge.create", "Wissen erstellen", "Wissensdatenbank-Einträge erstellen", "knowledge"),

backend/hermes/app/repositories/repair_repository.py

@@ -343,6 +343,17 @@ class RepairRepository:
             .where(RepairNotificationEvent.status.in_(["failed", "skipped"]))
         ) or 0
 
+    @staticmethod
+    def latest_failed_status_mail(db: Session) -> RepairNotificationEvent | None:
+        return db.scalar(
+            select(RepairNotificationEvent)
+            .where(RepairNotificationEvent.event_type == "repair_status_mail")
+            .where(RepairNotificationEvent.success.is_(False))
+            .where(RepairNotificationEvent.status.in_(["failed", "skipped"]))
+            .order_by(RepairNotificationEvent.created_at.desc(), RepairNotificationEvent.id.desc())
+            .limit(1)
+        )
+
     @staticmethod
     def count_open_repairs_without_customer_email(db: Session) -> int:
         return db.scalar(

backend/hermes/app/repositories/system_settings_repository.py

@@ -0,0 +1,35 @@
+from collections.abc import Iterable
+
+from sqlalchemy import select
+from sqlalchemy.orm import Session
+
+from app.models.system_setting import SystemSetting
+
+
+class SystemSettingsRepository:
+    @staticmethod
+    def get(db: Session, key: str) -> SystemSetting | None:
+        return db.scalar(select(SystemSetting).where(SystemSetting.key == key))
+
+    @staticmethod
+    def get_many(db: Session, keys: Iterable[str]) -> dict[str, SystemSetting]:
+        key_list = list(keys)
+        if not key_list:
+            return {}
+
+        settings = db.scalars(select(SystemSetting).where(SystemSetting.key.in_(key_list))).all()
+        return {setting.key: setting for setting in settings}
+
+    @staticmethod
+    def upsert(db: Session, *, key: str, value: str, is_secret: bool = False) -> SystemSetting:
+        setting = SystemSettingsRepository.get(db, key)
+        if setting is None:
+            setting = SystemSetting(key=key, value=value, is_secret=is_secret)
+            db.add(setting)
+            db.flush()
+            return setting
+
+        setting.value = value
+        setting.is_secret = is_secret
+        db.flush()
+        return setting

backend/hermes/app/schemas/dashboard.py

@@ -13,12 +13,19 @@ class EmptyWidget(BaseModel):
     message: str
 
 
+class SystemStatusItem(BaseModel):
+    label: str
+    value: str
+    status: str = "info"
+
+
 class DashboardSummary(BaseModel):
     customers: list[MetricCard] = []
     latest_customers: list[CustomerResponse] = []
     users: list[MetricCard] = []
     roles: list[MetricCard] = []
     repairs: list[MetricCard] = []
+    system_status: list[SystemStatusItem] = []
     activities: EmptyWidget
     tasks: EmptyWidget
     tickets: EmptyWidget

backend/hermes/app/schemas/system_setting.py

@@ -0,0 +1,70 @@
+from typing import Literal
+
+from pydantic import BaseModel, EmailStr, Field, field_validator, model_validator
+
+
+SettingsSource = Literal["database", "environment", "missing"]
+
+
+def normalize_text(value: object) -> str:
+    if value is None:
+        return ""
+    return str(value).strip()
+
+
+class SmtpSettingsResponse(BaseModel):
+    host: str = ""
+    port: int = 587
+    username: str = ""
+    password_is_set: bool = False
+    from_email: str = ""
+    from_name: str = "Funktechnik Schubert"
+    use_tls: bool = True
+    enabled: bool = False
+    source: SettingsSource
+
+
+class SmtpSettingsUpdate(BaseModel):
+    host: str = Field(default="", max_length=255)
+    port: int = Field(default=587, ge=1, le=65535)
+    username: str = Field(default="", max_length=255)
+    password: str | None = Field(default=None, max_length=1000)
+    from_email: str = Field(default="", max_length=255)
+    from_name: str = Field(default="Funktechnik Schubert", max_length=255)
+    use_tls: bool = True
+    enabled: bool = False
+
+    @field_validator("host", "username", "password", "from_email", "from_name", mode="before")
+    @classmethod
+    def normalize_strings(cls, value: object) -> str:
+        return normalize_text(value)
+
+    @model_validator(mode="after")
+    def validate_enabled_configuration(self):
+        if self.enabled and (not self.host or not self.from_email):
+            raise ValueError("SMTP Host und Absenderadresse sind erforderlich, wenn SMTP aktiviert ist")
+        return self
+
+
+class SmtpTestRequest(BaseModel):
+    recipient: EmailStr
+
+
+class SmtpTestResponse(BaseModel):
+    success: bool
+    message: str
+    source: SettingsSource
+
+
+class PublicLinksSettingsResponse(BaseModel):
+    repair_status_base_url: str = ""
+    source: SettingsSource
+
+
+class PublicLinksSettingsUpdate(BaseModel):
+    repair_status_base_url: str = Field(default="", max_length=500)
+
+    @field_validator("repair_status_base_url", mode="before")
+    @classmethod
+    def normalize_url(cls, value: object) -> str:
+        return normalize_text(value).rstrip("/")

backend/hermes/app/services/audit_service.py

@@ -169,6 +169,10 @@ def action_title(action: str) -> str:
         "repairs.public_link.regenerate": "Reparatur-Statuslink erneut erstellt",
         "repairs.status_mail.sent": "Statusmail versendet",
         "repairs.status_mail.failed": "Statusmail fehlgeschlagen",
+        "system_settings.smtp.update": "SMTP-Konfiguration geändert",
+        "system_settings.smtp.test_sent": "SMTP-Testmail versendet",
+        "system_settings.smtp.test_failed": "SMTP-Testmail fehlgeschlagen",
+        "system_settings.public_links.update": "Öffentliche Link-Konfiguration geändert",
     }
     return labels.get(action, action)
 

backend/hermes/app/services/repair_notification_service.py

@@ -1,13 +1,10 @@
-import smtplib
 from dataclasses import dataclass
 from datetime import UTC, datetime
-from email.message import EmailMessage
 from html import escape
 
 from sqlalchemy.orm import Session
 from starlette.requests import Request
 
-from app.core.config import settings
 from app.models.repair import Repair, RepairNotificationEvent
 from app.models.user import User
 from app.repositories.repair_repository import RepairRepository
@@ -15,6 +12,7 @@ from app.schemas.repair import RepairNotificationOverviewResponse, RepairNotific
 from app.services.audit_service import write_audit_log
 from app.services.repair_public_link_service import RepairPublicLinkService
 from app.services.repair_status_labels import MAIL_STATUS_LABELS, STATUS_LABELS
+from app.services.system_settings_service import SystemSettingsService
 
 
 @dataclass(frozen=True)
@@ -98,16 +96,6 @@ def _repair_label(repair: Repair) -> str:
     return f"{repair.repair_number} · {repair.customer_name}"
 
 
-def _smtp_configured() -> bool:
-    return bool(settings.smtp_host and settings.smtp_from_email)
-
-
-def _from_header() -> str:
-    if settings.smtp_from_name:
-        return f"{settings.smtp_from_name} <{settings.smtp_from_email}>"
-    return str(settings.smtp_from_email)
-
-
 def _plain_status_mail(repair: Repair, *, status_label: str, public_status_url: str) -> str:
     return (
         f"Hallo {repair.customer_name},\n\n"
@@ -235,8 +223,9 @@ class RepairNotificationService:
 
         text = _plain_status_mail(repair, status_label=status_label, public_status_url=public_status_url)
         html = _html_status_mail(repair, status_label=status_label, public_status_url=public_status_url)
+        smtp_config = SystemSettingsService.get_smtp_runtime_config(db)
 
-        if not _smtp_configured():
+        if not smtp_config.is_configured:
             event = RepairRepository.create_notification_event(
                 db,
                 repair_id=repair.id,
@@ -253,7 +242,7 @@ class RepairNotificationService:
             return event
 
         try:
-            RepairNotificationService._send_email(recipient=recipient, subject=subject, text=text, html=html)
+            SystemSettingsService.send_email(smtp_config, recipient=recipient, subject=subject, text=text, html=html)
         except Exception:
             event = RepairRepository.create_notification_event(
                 db,
@@ -294,22 +283,6 @@ class RepairNotificationService:
         )
         return event
 
-    @staticmethod
-    def _send_email(*, recipient: str, subject: str, text: str, html: str) -> None:
-        message = EmailMessage()
-        message["Subject"] = subject
-        message["From"] = _from_header()
-        message["To"] = recipient
-        message.set_content(text)
-        message.add_alternative(html, subtype="html")
-
-        with smtplib.SMTP(str(settings.smtp_host), settings.smtp_port, timeout=15) as smtp:
-            if settings.smtp_use_tls:
-                smtp.starttls()
-            if settings.smtp_username and settings.smtp_password:
-                smtp.login(settings.smtp_username, settings.smtp_password)
-            smtp.send_message(message)
-
     @staticmethod
     def _audit_failure(db: Session, repair: Repair, *, actor: User | None, request: Request | None, reason: str) -> None:
         write_audit_log(

backend/hermes/app/services/repair_public_link_service.py

@@ -19,6 +19,7 @@ from app.schemas.repair import (
 )
 from app.services.audit_service import write_audit_log
 from app.services.repair_status_labels import STATUS_LABELS
+from app.services.system_settings_service import SystemSettingsService
 
 
 def normalize_token(token: str) -> str:
@@ -29,10 +30,10 @@ def repair_label(repair: Repair) -> str:
     return f"{repair.repair_number} · {repair.customer_name}"
 
 
-def public_status_path(token: str) -> str:
+def public_status_path(db: Session, token: str) -> str:
     normalized_token = normalize_token(token)
     path = f"/status/{normalized_token}"
-    base_url = (settings.public_repair_status_base_url or "").strip().rstrip("/")
+    base_url = SystemSettingsService.get_public_repair_status_base_url(db)
     if not base_url:
         return path
     return f"{base_url}/{normalized_token}"
@@ -109,7 +110,7 @@ class RepairPublicLinkService:
             last_used_at=public_link.last_used_at,
             created_at=public_link.created_at,
             revoked_at=public_link.revoked_at,
-            public_status_path=public_status_path(token),
+            public_status_path=public_status_path(db, token),
         )
 
     @staticmethod

backend/hermes/app/services/system_settings_service.py

@@ -0,0 +1,316 @@
+import smtplib
+from dataclasses import dataclass
+from email.message import EmailMessage
+
+from pydantic import EmailStr
+from sqlalchemy.orm import Session
+from starlette.requests import Request
+
+from app.core.config import settings
+from app.models.user import User
+from app.repositories.system_settings_repository import SystemSettingsRepository
+from app.schemas.system_setting import (
+    PublicLinksSettingsResponse,
+    PublicLinksSettingsUpdate,
+    SmtpSettingsResponse,
+    SmtpSettingsUpdate,
+    SmtpTestResponse,
+    SettingsSource,
+)
+from app.services.audit_service import write_audit_log
+
+
+SMTP_KEYS = (
+    "smtp.host",
+    "smtp.port",
+    "smtp.username",
+    "smtp.password",
+    "smtp.from_email",
+    "smtp.from_name",
+    "smtp.use_tls",
+    "smtp.enabled",
+)
+
+SECRET_KEYS = {"smtp.password"}
+
+
+@dataclass(frozen=True)
+class SmtpRuntimeConfig:
+    host: str
+    port: int
+    username: str
+    password: str
+    from_email: str
+    from_name: str
+    use_tls: bool
+    enabled: bool
+    source: SettingsSource
+
+    @property
+    def is_configured(self) -> bool:
+        return self.enabled and bool(self.host and self.from_email)
+
+    @property
+    def password_is_set(self) -> bool:
+        return bool(self.password)
+
+    @property
+    def from_header(self) -> str:
+        if self.from_name:
+            return f"{self.from_name} <{self.from_email}>"
+        return self.from_email
+
+
+def parse_bool(value: str | None, *, default: bool = False) -> bool:
+    if value is None:
+        return default
+    return value.strip().lower() in {"1", "true", "yes", "on"}
+
+
+def parse_int(value: str | None, *, default: int) -> int:
+    try:
+        parsed = int(str(value or "").strip())
+    except ValueError:
+        return default
+    if parsed < 1 or parsed > 65535:
+        return default
+    return parsed
+
+
+class SystemSettingsService:
+    @staticmethod
+    def get_smtp_settings(db: Session) -> SmtpSettingsResponse:
+        return SystemSettingsService.smtp_response(SystemSettingsService.get_smtp_runtime_config(db))
+
+    @staticmethod
+    def get_smtp_runtime_config(db: Session) -> SmtpRuntimeConfig:
+        values = SystemSettingsService._get_values(db, SMTP_KEYS)
+        database_enabled = parse_bool(values.get("smtp.enabled"), default=False)
+        database_host = values.get("smtp.host", "")
+        database_from_email = values.get("smtp.from_email", "")
+
+        if database_enabled and database_host and database_from_email:
+            return SmtpRuntimeConfig(
+                host=database_host,
+                port=parse_int(values.get("smtp.port"), default=587),
+                username=values.get("smtp.username", ""),
+                password=values.get("smtp.password", ""),
+                from_email=database_from_email,
+                from_name=values.get("smtp.from_name", "Funktechnik Schubert") or "Funktechnik Schubert",
+                use_tls=parse_bool(values.get("smtp.use_tls"), default=True),
+                enabled=True,
+                source="database",
+            )
+
+        if settings.smtp_host and settings.smtp_from_email:
+            return SmtpRuntimeConfig(
+                host=settings.smtp_host,
+                port=settings.smtp_port,
+                username=settings.smtp_username or "",
+                password=settings.smtp_password or "",
+                from_email=settings.smtp_from_email,
+                from_name=settings.smtp_from_name,
+                use_tls=settings.smtp_use_tls,
+                enabled=True,
+                source="environment",
+            )
+
+        return SmtpRuntimeConfig(
+            host=database_host or settings.smtp_host or "",
+            port=parse_int(values.get("smtp.port"), default=settings.smtp_port),
+            username=values.get("smtp.username", "") or settings.smtp_username or "",
+            password=values.get("smtp.password", "") or settings.smtp_password or "",
+            from_email=database_from_email or settings.smtp_from_email or "",
+            from_name=values.get("smtp.from_name", "") or settings.smtp_from_name,
+            use_tls=parse_bool(values.get("smtp.use_tls"), default=settings.smtp_use_tls),
+            enabled=False,
+            source="missing",
+        )
+
+    @staticmethod
+    def update_smtp_settings(
+        db: Session,
+        payload: SmtpSettingsUpdate,
+        *,
+        actor: User,
+        request: Request,
+    ) -> SmtpSettingsResponse:
+        current_values = SystemSettingsService._get_values(db, SMTP_KEYS)
+        password = payload.password if payload.password else current_values.get("smtp.password", "")
+
+        updates = {
+            "smtp.host": payload.host,
+            "smtp.port": str(payload.port),
+            "smtp.username": payload.username,
+            "smtp.password": password,
+            "smtp.from_email": payload.from_email,
+            "smtp.from_name": payload.from_name or "Funktechnik Schubert",
+            "smtp.use_tls": "true" if payload.use_tls else "false",
+            "smtp.enabled": "true" if payload.enabled else "false",
+        }
+
+        for key, value in updates.items():
+            SystemSettingsRepository.upsert(db, key=key, value=value, is_secret=key in SECRET_KEYS)
+        db.commit()
+
+        write_audit_log(
+            db,
+            action="system_settings.smtp.update",
+            entity_type="system_settings",
+            entity_label="SMTP-Konfiguration",
+            actor=actor,
+            request=request,
+            metadata={
+                "enabled": payload.enabled,
+                "host": payload.host,
+                "from_email": payload.from_email,
+                "password_changed": bool(payload.password),
+            },
+        )
+        return SystemSettingsService.get_smtp_settings(db)
+
+    @staticmethod
+    def get_public_links_settings(db: Session) -> PublicLinksSettingsResponse:
+        value = SystemSettingsService.get_public_repair_status_base_url(db)
+        source: SettingsSource = "missing"
+        if value:
+            db_value = SystemSettingsRepository.get(db, "public.repair_status_base_url")
+            source = "database" if db_value and db_value.value.strip() else "environment"
+        return PublicLinksSettingsResponse(repair_status_base_url=value, source=source)
+
+    @staticmethod
+    def get_public_repair_status_base_url(db: Session) -> str:
+        setting = SystemSettingsRepository.get(db, "public.repair_status_base_url")
+        if setting and setting.value.strip():
+            return setting.value.strip().rstrip("/")
+        return (settings.public_repair_status_base_url or "").strip().rstrip("/")
+
+    @staticmethod
+    def update_public_links_settings(
+        db: Session,
+        payload: PublicLinksSettingsUpdate,
+        *,
+        actor: User,
+        request: Request,
+    ) -> PublicLinksSettingsResponse:
+        SystemSettingsRepository.upsert(
+            db,
+            key="public.repair_status_base_url",
+            value=payload.repair_status_base_url,
+            is_secret=False,
+        )
+        db.commit()
+        write_audit_log(
+            db,
+            action="system_settings.public_links.update",
+            entity_type="system_settings",
+            entity_label="Öffentliche Links",
+            actor=actor,
+            request=request,
+            metadata={"repair_status_base_url": payload.repair_status_base_url},
+        )
+        return SystemSettingsService.get_public_links_settings(db)
+
+    @staticmethod
+    def send_test_mail(
+        db: Session,
+        recipient: EmailStr,
+        *,
+        actor: User,
+        request: Request,
+    ) -> SmtpTestResponse:
+        smtp_config = SystemSettingsService.get_smtp_runtime_config(db)
+        if not smtp_config.is_configured:
+            write_audit_log(
+                db,
+                action="system_settings.smtp.test_failed",
+                entity_type="system_settings",
+                entity_label="SMTP-Testmail",
+                actor=actor,
+                request=request,
+                metadata={"reason": "smtp_not_configured", "source": smtp_config.source},
+            )
+            return SmtpTestResponse(success=False, message="SMTP ist nicht vollständig konfiguriert.", source=smtp_config.source)
+
+        try:
+            SystemSettingsService.send_email(
+                smtp_config,
+                recipient=str(recipient),
+                subject="Olympus CRM SMTP-Test",
+                text=(
+                    "Hallo,\n\n"
+                    "dies ist eine Testmail aus Olympus CRM. "
+                    "Die SMTP-Konfiguration ist grundsätzlich erreichbar.\n\n"
+                    "Olympus CRM"
+                ),
+                html=(
+                    "<p>Hallo,</p>"
+                    "<p>dies ist eine Testmail aus Olympus CRM. "
+                    "Die SMTP-Konfiguration ist grundsätzlich erreichbar.</p>"
+                    "<p>Olympus CRM</p>"
+                ),
+            )
+        except Exception:
+            write_audit_log(
+                db,
+                action="system_settings.smtp.test_failed",
+                entity_type="system_settings",
+                entity_label="SMTP-Testmail",
+                actor=actor,
+                request=request,
+                metadata={"reason": "smtp_send_failed", "source": smtp_config.source},
+            )
+            return SmtpTestResponse(success=False, message="Testmail konnte nicht versendet werden.", source=smtp_config.source)
+
+        write_audit_log(
+            db,
+            action="system_settings.smtp.test_sent",
+            entity_type="system_settings",
+            entity_label="SMTP-Testmail",
+            actor=actor,
+            request=request,
+            metadata={"source": smtp_config.source},
+        )
+        return SmtpTestResponse(success=True, message="Testmail wurde versendet.", source=smtp_config.source)
+
+    @staticmethod
+    def send_email(
+        smtp_config: SmtpRuntimeConfig,
+        *,
+        recipient: str,
+        subject: str,
+        text: str,
+        html: str,
+    ) -> None:
+        message = EmailMessage()
+        message["Subject"] = subject
+        message["From"] = smtp_config.from_header
+        message["To"] = recipient
+        message.set_content(text)
+        message.add_alternative(html, subtype="html")
+
+        with smtplib.SMTP(smtp_config.host, smtp_config.port, timeout=15) as smtp:
+            if smtp_config.use_tls:
+                smtp.starttls()
+            if smtp_config.username and smtp_config.password:
+                smtp.login(smtp_config.username, smtp_config.password)
+            smtp.send_message(message)
+
+    @staticmethod
+    def smtp_response(smtp_config: SmtpRuntimeConfig) -> SmtpSettingsResponse:
+        return SmtpSettingsResponse(
+            host=smtp_config.host,
+            port=smtp_config.port,
+            username=smtp_config.username,
+            password_is_set=smtp_config.password_is_set,
+            from_email=smtp_config.from_email,
+            from_name=smtp_config.from_name,
+            use_tls=smtp_config.use_tls,
+            enabled=smtp_config.enabled,
+            source=smtp_config.source,
+        )
+
+    @staticmethod
+    def _get_values(db: Session, keys: tuple[str, ...]) -> dict[str, str]:
+        settings_by_key = SystemSettingsRepository.get_many(db, keys)
+        return {key: settings_by_key[key].value.strip() for key in keys if key in settings_by_key}

docker-compose.yml

@@ -26,6 +26,7 @@ services:
       KNOWLEDGE_STORAGE_PATH: ${KNOWLEDGE_STORAGE_PATH:-/data/knowledge}
       KNOWLEDGE_MAX_UPLOAD_MB: ${KNOWLEDGE_MAX_UPLOAD_MB:-50}
       OLYMPUS_REPAIR_INTAKE_TOKEN: ${OLYMPUS_REPAIR_INTAKE_TOKEN:-}
+      # Env-Fallbacks: Admin-Konfiguration in PostgreSQL hat Vorrang.
       PUBLIC_REPAIR_STATUS_BASE_URL: ${PUBLIC_REPAIR_STATUS_BASE_URL:-}
       SMTP_HOST: ${SMTP_HOST:-}
       SMTP_PORT: ${SMTP_PORT:-587}

frontend/athena/app/api/system-settings/public-links/route.ts

@@ -0,0 +1,18 @@
+import { NextRequest } from "next/server";
+
+import { proxyHermesRequest } from "@/lib/server/hermes-proxy";
+import { assertSameOrigin } from "@/lib/server/request-guards";
+
+export async function GET(request: NextRequest) {
+  return proxyHermesRequest(request, "/system-settings/public-links");
+}
+
+export async function PUT(request: NextRequest) {
+  const originError = assertSameOrigin(request);
+
+  if (originError) {
+    return originError;
+  }
+
+  return proxyHermesRequest(request, "/system-settings/public-links");
+}

frontend/athena/app/api/system-settings/smtp/route.ts

@@ -0,0 +1,18 @@
+import { NextRequest } from "next/server";
+
+import { proxyHermesRequest } from "@/lib/server/hermes-proxy";
+import { assertSameOrigin } from "@/lib/server/request-guards";
+
+export async function GET(request: NextRequest) {
+  return proxyHermesRequest(request, "/system-settings/smtp");
+}
+
+export async function PUT(request: NextRequest) {
+  const originError = assertSameOrigin(request);
+
+  if (originError) {
+    return originError;
+  }
+
+  return proxyHermesRequest(request, "/system-settings/smtp");
+}

frontend/athena/app/api/system-settings/smtp/test/route.ts

@@ -0,0 +1,14 @@
+import { NextRequest } from "next/server";
+
+import { proxyHermesRequest } from "@/lib/server/hermes-proxy";
+import { assertSameOrigin } from "@/lib/server/request-guards";
+
+export async function POST(request: NextRequest) {
+  const originError = assertSameOrigin(request);
+
+  if (originError) {
+    return originError;
+  }
+
+  return proxyHermesRequest(request, "/system-settings/smtp/test");
+}

frontend/athena/app/dashboard/page.tsx

@@ -108,6 +108,23 @@ export default function DashboardPage() {
         )}
       </section>
 
+      {summary.system_status.length > 0 && (
+        <section className="rounded-lg border bg-white p-6">
+          <h2 className="text-lg font-semibold text-slate-950">Systemstatus</h2>
+          <div className="mt-4 grid gap-3 md:grid-cols-2 xl:grid-cols-4">
+            {summary.system_status.map((item) => (
+              <div key={item.label} className="rounded-lg border bg-slate-50 p-4">
+                <div className="flex items-center justify-between gap-3">
+                  <p className="text-sm font-medium text-slate-600">{item.label}</p>
+                  <span className={`h-2.5 w-2.5 rounded-full ${statusColor(item.status)}`} />
+                </div>
+                <p className="mt-2 break-words text-sm font-semibold text-slate-950">{formatSystemValue(item.value)}</p>
+              </div>
+            ))}
+          </div>
+        </section>
+      )}
+
       <div className="grid gap-4 md:grid-cols-2 xl:grid-cols-4">
         <ActivityPanel
           widget={summary.activities}
@@ -123,6 +140,27 @@ export default function DashboardPage() {
   );
 }
 
+function statusColor(status: "ok" | "warning" | "info") {
+  if (status === "ok") {
+    return "bg-emerald-500";
+  }
+  if (status === "warning") {
+    return "bg-amber-500";
+  }
+  return "bg-slate-400";
+}
+
+function formatSystemValue(value: string) {
+  const date = new Date(value);
+  if (!Number.isNaN(date.getTime()) && value.includes("T")) {
+    return new Intl.DateTimeFormat("de-DE", {
+      dateStyle: "short",
+      timeStyle: "short",
+    }).format(date);
+  }
+  return value;
+}
+
 function ActivityPanel({
   widget,
   activities,

frontend/athena/app/settings/page.tsx

@@ -0,0 +1,356 @@
+"use client";
+
+import { useCallback, useEffect, useState } from "react";
+import type { ReactNode } from "react";
+import { ExternalLink, MailCheck, Save, Send, ShieldCheck } from "lucide-react";
+
+import { useToast } from "@/components/common/ToastProvider";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { api } from "@/lib/api";
+import type {
+  PublicLinksSettings,
+  SettingsSource,
+  SmtpSettings,
+  SmtpSettingsPayload,
+  SmtpTestResponse,
+} from "@/types/system-settings";
+
+type SettingsTab = "smtp" | "public-links";
+
+const sourceLabels: Record<SettingsSource, string> = {
+  database: "Admin-Konfiguration",
+  environment: "Umgebung",
+  missing: "Nicht konfiguriert",
+};
+
+function getErrorMessage(error: unknown, fallback: string) {
+  if (typeof error === "object" && error !== null && "response" in error) {
+    const response = (error as { response?: { data?: { detail?: string; message?: string } } }).response;
+    return response?.data?.detail ?? response?.data?.message ?? fallback;
+  }
+  return fallback;
+}
+
+function emptySmtpSettings(): SmtpSettings {
+  return {
+    host: "",
+    port: 587,
+    username: "",
+    password_is_set: false,
+    from_email: "",
+    from_name: "Funktechnik Schubert",
+    use_tls: true,
+    enabled: false,
+    source: "missing",
+  };
+}
+
+export default function SettingsPage() {
+  const { showToast } = useToast();
+  const [activeTab, setActiveTab] = useState<SettingsTab>("smtp");
+  const [smtp, setSmtp] = useState<SmtpSettings>(emptySmtpSettings());
+  const [newPassword, setNewPassword] = useState("");
+  const [testRecipient, setTestRecipient] = useState("");
+  const [publicLinks, setPublicLinks] = useState<PublicLinksSettings>({
+    repair_status_base_url: "",
+    source: "missing",
+  });
+  const [loading, setLoading] = useState(true);
+  const [savingSmtp, setSavingSmtp] = useState(false);
+  const [sendingTest, setSendingTest] = useState(false);
+  const [savingPublicLinks, setSavingPublicLinks] = useState(false);
+  const [error, setError] = useState("");
+
+  const loadSettings = useCallback(async () => {
+    setError("");
+    setLoading(true);
+    try {
+      const [smtpResponse, publicLinksResponse] = await Promise.all([
+        api.get<SmtpSettings>("/system-settings/smtp"),
+        api.get<PublicLinksSettings>("/system-settings/public-links"),
+      ]);
+      setSmtp(smtpResponse.data);
+      setPublicLinks(publicLinksResponse.data);
+    } catch (err) {
+      setError(getErrorMessage(err, "Einstellungen konnten nicht geladen werden."));
+    } finally {
+      setLoading(false);
+    }
+  }, []);
+
+  useEffect(() => {
+    queueMicrotask(() => {
+      void loadSettings();
+    });
+  }, [loadSettings]);
+
+  async function saveSmtp() {
+    setSavingSmtp(true);
+    try {
+      const payload: SmtpSettingsPayload = {
+        host: smtp.host,
+        port: smtp.port,
+        username: smtp.username,
+        from_email: smtp.from_email,
+        from_name: smtp.from_name,
+        use_tls: smtp.use_tls,
+        enabled: smtp.enabled,
+      };
+
+      if (newPassword) {
+        payload.password = newPassword;
+      }
+
+      const response = await api.put<SmtpSettings>("/system-settings/smtp", payload);
+      setSmtp(response.data);
+      setNewPassword("");
+      showToast({ type: "success", title: "SMTP-Konfiguration gespeichert" });
+    } catch (err) {
+      showToast({
+        type: "error",
+        title: "SMTP konnte nicht gespeichert werden",
+        description: getErrorMessage(err, "Bitte prüfe die Eingaben."),
+      });
+    } finally {
+      setSavingSmtp(false);
+    }
+  }
+
+  async function sendTestMail() {
+    setSendingTest(true);
+    try {
+      const response = await api.post<SmtpTestResponse>("/system-settings/smtp/test", {
+        recipient: testRecipient,
+      });
+      showToast({
+        type: response.data.success ? "success" : "error",
+        title: response.data.success ? "Testmail versendet" : "Testmail fehlgeschlagen",
+        description: response.data.message,
+      });
+    } catch (err) {
+      showToast({
+        type: "error",
+        title: "Testmail fehlgeschlagen",
+        description: getErrorMessage(err, "Die Testmail konnte nicht versendet werden."),
+      });
+    } finally {
+      setSendingTest(false);
+    }
+  }
+
+  async function savePublicLinks() {
+    setSavingPublicLinks(true);
+    try {
+      const response = await api.put<PublicLinksSettings>("/system-settings/public-links", {
+        repair_status_base_url: publicLinks.repair_status_base_url,
+      });
+      setPublicLinks(response.data);
+      showToast({ type: "success", title: "Öffentliche Links gespeichert" });
+    } catch (err) {
+      showToast({
+        type: "error",
+        title: "Öffentliche Links konnten nicht gespeichert werden",
+        description: getErrorMessage(err, "Bitte prüfe die Basis-URL."),
+      });
+    } finally {
+      setSavingPublicLinks(false);
+    }
+  }
+
+  if (loading) {
+    return <div className="rounded-lg border bg-white p-8 text-slate-500">Einstellungen werden geladen...</div>;
+  }
+
+  if (error) {
+    return <div className="rounded-lg border bg-white p-8 text-red-600">{error}</div>;
+  }
+
+  return (
+    <div className="space-y-6">
+      <div className="flex flex-col gap-3 lg:flex-row lg:items-center lg:justify-between">
+        <div>
+          <h1 className="text-3xl font-bold text-slate-950">Einstellungen</h1>
+          <p className="mt-1 text-sm text-slate-500">SMTP-Versand und öffentliche Statuslinks verwalten</p>
+        </div>
+        <div className="inline-flex w-fit rounded-lg border bg-white p-1">
+          <TabButton active={activeTab === "smtp"} onClick={() => setActiveTab("smtp")}>
+            SMTP
+          </TabButton>
+          <TabButton active={activeTab === "public-links"} onClick={() => setActiveTab("public-links")}>
+            Öffentliche Links
+          </TabButton>
+        </div>
+      </div>
+
+      {activeTab === "smtp" ? (
+        <section className="rounded-lg border bg-white p-6">
+          <div className="mb-6 flex flex-col gap-3 border-b pb-5 lg:flex-row lg:items-start lg:justify-between">
+            <div>
+              <div className="flex items-center gap-2">
+                <MailCheck className="h-5 w-5 text-slate-500" />
+                <h2 className="text-lg font-semibold text-slate-950">SMTP</h2>
+              </div>
+              <p className="mt-1 text-sm text-slate-500">
+                Quelle: {sourceLabels[smtp.source]}
+                {smtp.password_is_set ? " · Passwort ist gesetzt" : ""}
+              </p>
+            </div>
+            <Button type="button" onClick={() => void saveSmtp()} disabled={savingSmtp}>
+              <Save />
+              {savingSmtp ? "Speichert..." : "Speichern"}
+            </Button>
+          </div>
+
+          <div className="grid gap-5 lg:grid-cols-2">
+            <label className="flex items-center gap-3 rounded-lg border p-4 text-sm font-medium text-slate-800">
+              <input
+                type="checkbox"
+                className="h-4 w-4 rounded border-slate-300"
+                checked={smtp.enabled}
+                onChange={(event) => setSmtp((current) => ({ ...current, enabled: event.target.checked }))}
+              />
+              SMTP über Admin-Konfiguration aktivieren
+            </label>
+
+            <label className="flex items-center gap-3 rounded-lg border p-4 text-sm font-medium text-slate-800">
+              <input
+                type="checkbox"
+                className="h-4 w-4 rounded border-slate-300"
+                checked={smtp.use_tls}
+                onChange={(event) => setSmtp((current) => ({ ...current, use_tls: event.target.checked }))}
+              />
+              TLS / STARTTLS aktiv
+            </label>
+
+            <Field label="SMTP Host">
+              <Input value={smtp.host} onChange={(event) => setSmtp((current) => ({ ...current, host: event.target.value }))} />
+            </Field>
+
+            <Field label="Port">
+              <Input
+                type="number"
+                min={1}
+                max={65535}
+                value={smtp.port}
+                onChange={(event) => setSmtp((current) => ({ ...current, port: Number(event.target.value) || 587 }))}
+              />
+            </Field>
+
+            <Field label="Benutzername">
+              <Input value={smtp.username} onChange={(event) => setSmtp((current) => ({ ...current, username: event.target.value }))} />
+            </Field>
+
+            <Field label={smtp.password_is_set ? "Neues Passwort setzen" : "Passwort"}>
+              <Input
+                type="password"
+                value={newPassword}
+                placeholder={smtp.password_is_set ? "Leer lassen, um aktuelles Passwort zu behalten" : ""}
+                onChange={(event) => setNewPassword(event.target.value)}
+              />
+            </Field>
+
+            <Field label="Absenderadresse">
+              <Input
+                type="email"
+                value={smtp.from_email}
+                onChange={(event) => setSmtp((current) => ({ ...current, from_email: event.target.value }))}
+              />
+            </Field>
+
+            <Field label="Absendername">
+              <Input value={smtp.from_name} onChange={(event) => setSmtp((current) => ({ ...current, from_name: event.target.value }))} />
+            </Field>
+          </div>
+
+          <div className="mt-6 rounded-lg border border-blue-100 bg-blue-50 p-4 text-sm text-blue-950">
+            Für Apple Mail/iCloud: smtp.mail.me.com, Port 587, TLS/STARTTLS aktiv,
+            Benutzername vollständige Mailadresse, Passwort = app-spezifisches Passwort.
+          </div>
+
+          <div className="mt-6 rounded-lg border bg-slate-50 p-4">
+            <div className="flex items-center gap-2">
+              <Send className="h-5 w-5 text-slate-500" />
+              <h3 className="font-semibold text-slate-950">Testmail senden</h3>
+            </div>
+            <div className="mt-4 flex flex-col gap-3 sm:flex-row">
+              <Input
+                type="email"
+                placeholder="empfaenger@example.com"
+                value={testRecipient}
+                onChange={(event) => setTestRecipient(event.target.value)}
+              />
+              <Button type="button" onClick={() => void sendTestMail()} disabled={sendingTest || !testRecipient}>
+                <Send />
+                {sendingTest ? "Sendet..." : "Testmail"}
+              </Button>
+            </div>
+          </div>
+        </section>
+      ) : (
+        <section className="rounded-lg border bg-white p-6">
+          <div className="mb-6 flex flex-col gap-3 border-b pb-5 lg:flex-row lg:items-start lg:justify-between">
+            <div>
+              <div className="flex items-center gap-2">
+                <ExternalLink className="h-5 w-5 text-slate-500" />
+                <h2 className="text-lg font-semibold text-slate-950">Öffentliche Links</h2>
+              </div>
+              <p className="mt-1 text-sm text-slate-500">Quelle: {sourceLabels[publicLinks.source]}</p>
+            </div>
+            <Button type="button" onClick={() => void savePublicLinks()} disabled={savingPublicLinks}>
+              <Save />
+              {savingPublicLinks ? "Speichert..." : "Speichern"}
+            </Button>
+          </div>
+
+          <Field label="Reparaturstatus Basis-URL">
+            <Input
+              placeholder="https://test.funktechnik-schubert.de/status"
+              value={publicLinks.repair_status_base_url}
+              onChange={(event) => setPublicLinks((current) => ({ ...current, repair_status_base_url: event.target.value }))}
+            />
+          </Field>
+
+          <div className="mt-5 flex items-start gap-3 rounded-lg border border-emerald-100 bg-emerald-50 p-4 text-sm text-emerald-950">
+            <ShieldCheck className="mt-0.5 h-5 w-5 shrink-0" />
+            <p>
+              Statusmails erzeugen weiterhin sichere Einmal-Token in Hermes. Die Basis-URL bestimmt nur,
+              auf welche öffentliche Website-Route der Link zeigt.
+            </p>
+          </div>
+        </section>
+      )}
+    </div>
+  );
+}
+
+function TabButton({
+  active,
+  onClick,
+  children,
+}: {
+  active: boolean;
+  onClick: () => void;
+  children: ReactNode;
+}) {
+  return (
+    <button
+      type="button"
+      className={`rounded-md px-3 py-2 text-sm font-medium transition-colors ${
+        active ? "bg-slate-900 text-white" : "text-slate-600 hover:bg-slate-100 hover:text-slate-950"
+      }`}
+      onClick={onClick}
+    >
+      {children}
+    </button>
+  );
+}
+
+function Field({ label, children }: { label: string; children: ReactNode }) {
+  return (
+    <label className="block">
+      <span className="mb-1.5 block text-sm font-medium text-slate-700">{label}</span>
+      {children}
+    </label>
+  );
+}

frontend/athena/components/Sidebar.tsx

@@ -81,6 +81,7 @@ const menu = [
     icon: Settings,
     name: "Einstellungen",
     href: "/settings",
+    permission: "system_settings.manage",
   },
 ] satisfies Array<{
   icon: typeof LayoutDashboard;

frontend/athena/proxy.ts

@@ -23,5 +23,6 @@ export const config = {
     "/roles/:path*",
     "/customers/:path*",
     "/repairs/:path*",
+    "/settings/:path*",
   ],
 };

frontend/athena/types/dashboard.ts

@@ -1,4 +1,5 @@
 import type { Customer } from "@/types/customer";
+import type { SystemStatusItem } from "@/types/system-settings";
 
 export interface MetricCard {
   label: string;
@@ -16,6 +17,7 @@ export interface DashboardSummary {
   users: MetricCard[];
   roles: MetricCard[];
   repairs: MetricCard[];
+  system_status: SystemStatusItem[];
   activities: EmptyWidget;
   tasks: EmptyWidget;
   tickets: EmptyWidget;

frontend/athena/types/system-settings.ts

@@ -0,0 +1,41 @@
+export type SettingsSource = "database" | "environment" | "missing";
+
+export interface SmtpSettings {
+  host: string;
+  port: number;
+  username: string;
+  password_is_set: boolean;
+  from_email: string;
+  from_name: string;
+  use_tls: boolean;
+  enabled: boolean;
+  source: SettingsSource;
+}
+
+export interface SmtpSettingsPayload {
+  host: string;
+  port: number;
+  username: string;
+  password?: string;
+  from_email: string;
+  from_name: string;
+  use_tls: boolean;
+  enabled: boolean;
+}
+
+export interface SmtpTestResponse {
+  success: boolean;
+  message: string;
+  source: SettingsSource;
+}
+
+export interface PublicLinksSettings {
+  repair_status_base_url: string;
+  source: SettingsSource;
+}
+
+export interface SystemStatusItem {
+  label: string;
+  value: string;
+  status: "ok" | "warning" | "info";
+}