Add PyInstaller builds, AGPLv3 license, transport node selection, and rmap.world link

- Add pyinstaller.spec and GitHub/Forgejo CI workflows for cross-platform builds
- Add AGPLv3 license
- Move data storage to ~/.tinyweb/
- Add --version and --port CLI flags
- Add transport node selection in /style (smart regeneration preserves Reticulum config)
- Add discover more nodes link to rmap.world

db.py

@@ -2,10 +2,12 @@ import socket
 import ipaddress
 import sqlite3
 import requests
+import os
 from urllib.parse import urlparse, urljoin, parse_qs, urlencode, urlunparse, quote
 from bs4 import BeautifulSoup
 
-DATABASE = "index.db"
+DATA_DIR = os.path.expanduser("~/.tinyweb")
+DATABASE = os.path.join(DATA_DIR, "index.db")
 
 BLOCKED_NETWORKS = [
     ipaddress.ip_network("127.0.0.0/8"),
@@ -123,6 +125,7 @@ def return_db(db):
 
 
 def init_db():
+    os.makedirs(DATA_DIR, exist_ok=True)
     db = sqlite3.connect(DATABASE)
     db.execute(
         "CREATE TABLE IF NOT EXISTS pages ("