Update .gitignore and refactor docker-compose.sh for improved host IP detection

- Added .host-ip to .gitignore to prevent tracking of host IP configurations.
- Enhanced docker-compose.sh to prioritize HOST_IP environment variable, fallback to .host-ip file, and finally auto-detect the host IP, improving robustness in various environments.
- Updated documentation to reflect changes in Supabase migration paths and removed references to deprecated management-dashboard-web-app directory.

scripts/get-host-ip.sh

@@ -42,10 +42,32 @@ get_ip_from_hostname() {
     fi
 }
 
+# Method 5: Prefer 100.x.x.x (e.g. Tailscale) when present on the host
+get_ip_prefer_100() {
+    local ip=""
+    if command -v ip >/dev/null 2>&1; then
+        # Third column is ADDR/CIDR (e.g. 100.93.40.84/32); extract IPv4 and prefer 100.x
+        ip=$(ip -br addr show 2>/dev/null | awk '{print $3}' | grep -oE '[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+' | grep -E '^100\.' | head -1)
+    fi
+    if [ -z "$ip" ] && command -v hostname >/dev/null 2>&1; then
+        ip=$(hostname -I 2>/dev/null | tr ' ' '\n' | grep -E '^100\.' | head -1)
+    fi
+    echo "$ip"
+}
+
 # Main logic: Try methods in order of reliability
 detect_host_ip() {
     local ip=""
-    
+
+    # When on the host (not in Docker), prefer 100.x.x.x (Tailscale) so the dashboard is reachable via that IP
+    if [ ! -f /.dockerenv ] && [ -z "${DOCKER_CONTAINER:-}" ]; then
+        ip=$(get_ip_prefer_100)
+        if [ -n "$ip" ] && [ "$ip" != "127.0.0.1" ]; then
+            echo "$ip"
+            return 0
+        fi
+    fi
+
     # If running inside Docker, try gateway method first
     if [ -f /.dockerenv ] || [ -n "${DOCKER_CONTAINER:-}" ]; then
         ip=$(get_ip_from_gateway)
@@ -53,7 +75,7 @@ detect_host_ip() {
             echo "$ip"
             return 0
         fi
-        
+
         # Try host.docker.internal
         ip=$(get_ip_from_host_docker_internal)
         if [ -n "$ip" ] && [ "$ip" != "127.0.0.1" ]; then
@@ -61,21 +83,21 @@ detect_host_ip() {
             return 0
         fi
     fi
-    
+
     # Try interface method (works on host machine)
     ip=$(get_ip_from_interface)
     if [ -n "$ip" ] && [ "$ip" != "127.0.0.1" ]; then
         echo "$ip"
         return 0
     fi
-    
+
     # Try hostname method
     ip=$(get_ip_from_hostname)
     if [ -n "$ip" ] && [ "$ip" != "127.0.0.1" ]; then
         echo "$ip"
         return 0
     fi
-    
+
     # Fallback: return localhost (not ideal but better than nothing)
     echo "127.0.0.1"
     return 1