CMS 2.0 - Theme engine, logging, admin improvements

Major changes:
- New ThemeManager with Twig templating and SCSS compilation
- Dynamic themes system (themes/default, themes/demo)
- LogManager with SQLite storage and syslog forwarding
- RequestLogger with static helper methods
- Admin UI overhaul (Bootstrap 5, dark mode)
- Admin config page with logging and theme settings
- Admin logs page with filters and search
- Removed legacy Mustache templates
- Removed test plugin and theme
- Composer dependencies: Twig, scssphp, CommonMark, MaxMind GeoIP

vendor/maxmind-db/reader/ext/config.w32

@@ -0,0 +1,10 @@
+ARG_WITH("maxminddb", "Enable MaxMind DB Reader extension support", "no");
+
+if (PHP_MAXMINDDB == "yes") {
+	if (CHECK_HEADER_ADD_INCLUDE("maxminddb.h", "CFLAGS_MAXMINDDB", PHP_MAXMINDDB +  ";" + PHP_PHP_BUILD + "\\include\\maxminddb") &&
+		CHECK_LIB("libmaxminddb.lib", "maxminddb", PHP_MAXMINDDB)) {
+		EXTENSION("maxminddb", "maxminddb.c");
+	} else {
+		WARNING('Could not find maxminddb.h or libmaxminddb.lib; skipping');
+	}
+}