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.

.editorconfig

@@ -0,0 +1,63 @@
+# https://editorconfig.org
+root = true
+
+# -------------------------------------------------
+# Common settings – apply to every file
+# -------------------------------------------------
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+# -------------------------------------------------
+# Python (*.py)
+# -------------------------------------------------
+[*.py]
+indent_style = space
+indent_size = 4
+max_line_length = 88          # matches Black’s default line length
+# Optional: enforce a newline at the end of the file (already set globally)
+
+# -------------------------------------------------
+# JavaScript & TypeScript (*.js, *.jsx, *.ts, *.tsx)
+# -------------------------------------------------
+[*.{js,jsx,ts,tsx}]
+indent_style = space
+indent_size = 2
+max_line_length = 120
+trim_trailing_whitespace = true
+
+# -------------------------------------------------
+# JSON (*.json, *.jsonc)
+# -------------------------------------------------
+[*.json]
+indent_style = space
+indent_size = 2
+max_line_length = off         # JSON is often compact; don’t enforce length
+trim_trailing_whitespace = false   # JSON parsers ignore trailing spaces
+
+# -------------------------------------------------
+# HTML (*.html, *.htm)
+# -------------------------------------------------
+[*.{html,htm}]
+indent_style = space
+indent_size = 2
+max_line_length = 120
+trim_trailing_whitespace = true
+
+# -------------------------------------------------
+# CSS & SCSS (*.css, *.scss)
+# -------------------------------------------------
+[*.{css,scss}]
+indent_style = space
+indent_size = 2
+max_line_length = 120
+trim_trailing_whitespace = true
+
+# -------------------------------------------------
+# Markdown (*.md, *.markdown)
+# -------------------------------------------------
+[*.{md,markdown}]
+max_line_length = off        # Markdown lines can be long for readability
+trim_trailing_whitespace = false   # Preserve intentional spaces (e.g., line breaks)