fix: tolerate damaged contribution files

src/ccma/rules/api.py

@@ -15,6 +15,7 @@ class RuleContext:
     today: date
     settings: Any
     repository_config: Mapping[str, Any]
+    contributions_error: str | None = None
 
 
 @dataclass(frozen=True, slots=True)

src/ccma/rules/scripts/claim_status.py

@@ -7,6 +7,8 @@ ORDER = 50
 
 
 def evaluate(context: RuleContext):
+    if context.contributions_error:
+        return []
     actions = []
     for claim in context.contributions.claims:
         if str(claim.get("status", "open")) not in {"open", "partially_paid"}:

src/ccma/rules/scripts/contribution_claims.py

@@ -12,6 +12,8 @@ CENT = Decimal("0.01")
 
 
 def evaluate(context: RuleContext):
+    if context.contributions_error:
+        return []
     member = context.member
     if member.honorary or member.status not in CONTRIBUTION_STATUSES:
         return []

src/ccma/rules/scripts/contributions_check.py

@@ -0,0 +1,20 @@
+from ccma.rules.api import RuleContext, task
+
+RULE_ID = "contributions-check"
+ORDER = 5
+
+
+def evaluate(context: RuleContext):
+    if not context.contributions_error:
+        return []
+    return [
+        task(
+            rule_id=RULE_ID,
+            member=context.member,
+            key_suffix="invalid-file",
+            severity="error",
+            code="invalid_contributions_file",
+            title=f"{context.member.display_name}: Beitragsdatei beschädigt",
+            detail=(f"{context.contributions_error}. Die Datei wird nicht automatisch überschrieben."),
+        )
+    ]