added notes to settings.yaml

moved core app config (name, version) out of settings and into app/app_settings.py
added ability to brand SneakyScope to any name
added caching of cert information from crt.sh (cache enable and lenght is configurable in settings.yaml)

streamlined header/footer loading to be more correct

app/rules/rules_engine.py

@@ -143,6 +143,13 @@ class Rule:
             return False, "No match"
 
         if self.rule_type == "function":
+            if not callable(self.function):
+                logger.warning(
+                    "[Rule] '%s' function is not callable (type=%s, value=%r)",
+                    self.name, type(self.function).__name__, self.function
+                )
+                return False, "Invalid rule configuration: function not callable"
+            
             if callable(self.function):
                 try:
                     matched, reason = self.function(text)
@@ -255,7 +262,7 @@ class RuleEngine:
                     )
             return
         
-        if settings.app.log_rule_loads:
+        if settings.logconfig.log_rule_loads:
             logger.info(
                     "[engine] add_rule: %s/%s replace=%s -> count=%d",
                     rule.category, rule.name, bool(replace), len(self._rules)
@@ -308,7 +315,7 @@ class RuleEngine:
         """
 
         # --- dispatch visibility --- if set to true, we log applied categories
-        if getattr(settings.app, "log_rule_dispatch", False):
+        if getattr(settings.logconfig, "log_rule_dispatch", False):
             all_cats = [r.category for r in self._rules]
             cat_counts = Counter(all_cats)
             # Which categories are being applied this run?