fix: resolve pointer exhaustion on upload rerun and TypeError float len on PDF export

report_gen.py

@@ -2,6 +2,18 @@ from fpdf import FPDF
 import datetime
 import hashlib
 
+def clean_str(val, default="N/A"):
+    """
+    Safely casts database records to strings, checking for None and float NaN.
+    """
+    if val is None:
+        return default
+    # check if float NaN
+    if isinstance(val, float) and val != val:
+        return default
+    s = str(val).strip()
+    return s if s else default
+
 class NetBackupMitigationPDF(FPDF):
     """
     Sleek, brand-aligned A4 layout representing the Veritas dark tech design system.
@@ -151,12 +163,12 @@ def generate_mitigation_pdf(jobs_list, filter_name="Consolidated"):
         fill_row = False
         for j in failures_list:
             jid = j['job_id']
-            client = j['client'] or 'N/A'
-            policy = j['policy'] or 'N/A'
+            client = clean_str(j['client'])
+            policy = clean_str(j['policy'])
             code = j['exit_code']
             reex = 'Reexecutado' if j['is_rerun_success'] == 1 else 'Pendente'
-            status = j.get('status', 'Pendente')
-            action = j.get('action_taken', '') or 'Nenhuma nota registrada.'
+            status = clean_str(j.get('status'), 'Pendente')
+            action = clean_str(j.get('action_taken'), 'Nenhuma nota registrada.')
             
             # String safety trims
             if len(client) > 20: client = client[:18] + '..'