feat: add WHOIS subnet querying and IP consolidation utility

- Implemented a new utility for querying WHOIS information and consolidating IP addresses by subnet.
- Added caching mechanism for WHOIS responses to improve performance.
- Introduced functions for loading and saving the WHOIS cache, querying subnets, and consolidating IPs based on a threshold.

feat: create Flask web UI for intrusion detection system

- Developed a Flask web application to manage the intrusion detection system.
- Implemented routes for scanning, reports, blocklist management, and firewall configuration.
- Added helper functions for reading files and handling requests.

feat: define routes for web UI

- Registered routes for various web pages and API endpoints in the Flask application.
- Implemented functionality for scanning, reporting, blocklist management, and firewall state retrieval.

feat: implement background scan runner for web UI

- Created a background scan runner to handle scan jobs in a separate thread.
- Managed an in-memory job store for tracking scan jobs and their statuses.
- Added persistence for scan jobs to maintain state across application restarts.

chore: update start script for Flask application

- Enhanced the PowerShell start script to check for the existence of the virtual environment.
- Added comments and structured the script for better readability and usability.

app/utils/utils.py

@@ -0,0 +1,35 @@
+#!/usr/bin/env python3
+"""Shared core for the local-dev intrusion-detection scripts.
+
+`copyparty.py` and `npm.py` are thin adapters. They only provide:
+
+  * a log-file matcher (glob-ish pattern / suffixes)
+  * a line parser producing `Request` objects
+  * a flagging rule (which IPs look hostile)
+  * column definitions for their CSV output
+
+Everything else -- IP aggregation, whitelisting, console + file reports,
+MikroTik RouterOS export -- lives in this module.
+"""
+
+from __future__ import annotations
+
+import argparse
+
+from .constants import DEFAULT_TOP
+
+
+def arg_parser(description: str, default_log_path: str,
+               default_report_dir: str) -> argparse.ArgumentParser:
+    p = argparse.ArgumentParser(description=description)
+    p.add_argument("--log-path", default=default_log_path,
+                   help=f"log directory (default: {default_log_path})")
+    p.add_argument("--report-dir", default=default_report_dir,
+                   help=f"report output dir (default: {default_report_dir})")
+    p.add_argument("--top", type=int, default=DEFAULT_TOP,
+                   help=f"rows in the top-IP table (default: {DEFAULT_TOP})")
+    p.add_argument("--quiet", action="store_true",
+                   help="write files, print nothing but the paths")
+    p.add_argument("--no-rsc", action="store_true",
+                   help="skip MikroTik .rsc generation")
+    return p