Add multilingual audit CI pipeline + extract mandelblog_content_guard

mandelblog_content_guard/validators/rules/forms.py

@@ -0,0 +1,21 @@
+from __future__ import annotations
+
+from ...types import make_issue
+from .patterns import PLACEHOLDER_VALUES
+from .language import detect_language_mismatch
+
+FORM_FIELDS = {"label", "placeholder", "help_text"}
+
+
+def validate_form_copy(locale_code: str, field_path: str, normalized: str):
+    last_segment = field_path.split(".")[-1]
+    if last_segment not in FORM_FIELDS:
+        return []
+    issues = []
+    if normalized in PLACEHOLDER_VALUES or normalized == "":
+        issues.append(make_issue("empty_form_copy", field_path, normalized))
+    mismatch = detect_language_mismatch(locale_code, normalized)
+    if mismatch:
+        issues.append(make_issue("form_language_mismatch", field_path, mismatch["message"]))
+    return issues
+