v1.10.2 patches: continent persistence, city markers, dynamic map center

C changes:
- gstorage.c: encode continent into root key for --persist --restore survival
- gholder.c: decode continent from root + lat/lng storage
- commons.h: add lat/lng fields to GMetrics struct
- geoip2.c/geoip1.h: extract coordinates from MMDB
- json.c: output lat/lng in geolocation JSON

JS changes:
- Remove cityIndex guard for static HTML city dots
- TopoJSON lat/lng fallback for city coordinates
- updateMap fallback city collection
- Dynamic orthographic center based on visitor count
- Mercator stays at [0,15] for full world view

Co-Authored-By: Claude <noreply@anthropic.com>

build-dynamic.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env sh
+# Build dynamic linked binaries on Debian.
+set -o nounset   ## set -u : exit the script if you try to use an uninitialised variable
+set -o errexit   ## set -e : exit the script if any statement returns a non-true return value
+
+# should be either of "mmdb" or "legacy"
+geoip=${1:-"mmdb"}
+
+autoreconf -fi > /dev/null 2>&1
+./configure CFLAGS=-Werror --enable-utf8 --with-openssl --with-getline --enable-geoip="$geoip" >/dev/null
+make -j > /dev/null
+cat goaccess