Major refactor: security enhancements, modularization, config integration, reduced Parquet reliance

- Migrated codebase to class-based architecture for better modularity and maintainability
- Introduced system_config.json for centralized configuration (required for runtime)
- Added structured working directories for improved file organization
- Significantly reduced reliance on Parquet; replaced with alternative data handling
- Implemented security improvements across modules
- Several TODOs remain in the main script for future enhancements
- Linter formatting affected readability in some files (e.g., utils); cleanup is on the agenda

models/policy.py

@@ -0,0 +1,65 @@
+#    Copyright (C) 2025 James Brotosky, Brandon Wickline
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as published
+#    by the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU Affero General Public License for more details.
+#
+#    You should have received a copy of the GNU Affero General Public License
+#    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+import json
+
+"""
+Policy model representing policy data and relationships.
+"""
+
+
+class Policy:
+    def __init__(self, groupid, hidden, name, parent):
+        self.groupid = groupid
+        self.hidden = hidden
+        self.name = name
+        self.parent = parent
+
+    def __repr__(self):
+        # Show all current attributes, including dynamically added ones
+        attrs = ", ".join(f"{key}={repr(value)}" for key, value in self.__dict__.items())
+        return f"<Execution({attrs})>"
+
+    def to_dict(self):
+        # Return all attributes as a dictionary
+        return self.__dict__
+
+    def to_json(self):
+        # Convert to JSON string, handling non-serializable types gracefully
+        return json.dumps(self.to_dict(), default=str)
+
+
+class Allowlist:
+    """
+    Represents Allowlist
+    """
+
+    def __init__(self, applicationid, name, version):
+        self.applicationid = applicationid
+        self.name = name
+        self.version = version
+
+    def __repr__(self):
+        # Show all current attributes, including dynamically added ones
+        attrs = ", ".join(f"{key}={repr(value)}" for key, value in self.__dict__.items())
+        return f"<Execution({attrs})>"
+
+    def to_dict(self):
+        # Return all attributes as a dictionary
+        return self.__dict__
+
+    def to_json(self):
+        # Convert to JSON string, handling non-serializable types gracefully
+        return json.dumps(self.to_dict(), default=str)