fix: tolerate invalid member dates in views

src/ccma/services/housekeeper.py

@@ -4,7 +4,12 @@ import calendar
 from dataclasses import dataclass, field
 from datetime import date, timedelta
 
-from ccma.domain.dates import DateValidationError, parse_iso_date, validate_birth_date
+from ccma.domain.dates import (
+    DateValidationError,
+    parse_iso_date,
+    validate_birth_date,
+    validate_member_dates,
+)
 from ccma.domain.models import HousekeeperFinding
 from ccma.services.intervals import AnniversaryInterval, parse_anniversary_intervals
 from ccma.storage.repository import MemberRepository
@@ -48,6 +53,23 @@ class Housekeeper:
         current_date = today or date.today()
         findings: list[HousekeeperFinding] = []
         for member in self.repository.list_members():
+            try:
+                validate_member_dates(
+                    birth_date=member.birth_date,
+                    accepted_at=member.accepted_at,
+                    membership_started_at=member.membership_started_at,
+                    today=current_date,
+                )
+            except DateValidationError as exc:
+                findings.append(
+                    HousekeeperFinding(
+                        severity="error",
+                        member_id=member.member_id,
+                        code="invalid_member_dates",
+                        title=f"{member.display_name}: Ungültige Datumsangabe",
+                        detail=str(exc),
+                    )
+                )
             if member.status in {
                 "active",
                 "suspended_contribution",