feat(geo): integrate flutter bridge get_location to fetch native region from phone

src/lib/geo-region.ts

@@ -79,6 +79,99 @@ function resolvePhoneCodeFromCountryCode(isoCode?: string): string | undefined {
   return undefined;
 }
 
+function requestLocationFromFlutterBridge(): Promise<UserGeoRegion | null> {
+  if (typeof window === "undefined") return Promise.resolve(null);
+
+  const hasFlutterBridge =
+    typeof (window as any).HabibApp?.postMessage === "function" ||
+    typeof (window as any).flutter_inappwebview?.callHandler === "function";
+
+  if (!hasFlutterBridge) {
+    return Promise.resolve(null);
+  }
+
+  return new Promise((resolve) => {
+    let settled = false;
+    let timer: NodeJS.Timeout | null = null;
+    let unsubscribe: (() => void) | undefined;
+
+    const cleanup = () => {
+      settled = true;
+      if (timer) clearTimeout(timer);
+      if (unsubscribe) unsubscribe();
+    };
+
+    timer = setTimeout(() => {
+      if (!settled) {
+        cleanup();
+        console.warn("[GEO_BRIDGE] Timeout waiting for Flutter get_location response");
+        resolve(null);
+      }
+    }, 4000);
+
+    const handleFlutterResponse: NonNullable<Window["onFlutterResponse"]> = (
+      event,
+    ) => {
+      if (event.action === "get_location") {
+        cleanup();
+        if (event.success && event.data) {
+          const data = event.data as any;
+          console.log(
+            "[GEO_BRIDGE] 📥 Received from Flutter get_location:",
+            JSON.stringify(data),
+          );
+
+          const rawCountry = data.country || data.country_code || "";
+          const isoCode =
+            data.country_code ||
+            (rawCountry && rawCountry.trim().length === 2
+              ? rawCountry.trim().toUpperCase()
+              : undefined);
+          const phoneCode = resolvePhoneCodeFromCountryCode(isoCode);
+          const countryName =
+            resolveCountryName(rawCountry || isoCode, "en") || rawCountry;
+          const countryFa =
+            resolveCountryName(rawCountry || isoCode, "fa") || countryName;
+
+          console.log(
+            `[GEO_BRIDGE] 🌍 Resolved Country: FA=${countryFa} | EN=${countryName} | Code=${isoCode} | City=${data.city || "None"} | IP=${data.ip || "None"}`,
+          );
+
+          const region: UserGeoRegion = {
+            ip: data.ip,
+            city: data.city,
+            country: countryName,
+            countryCode: isoCode,
+            phoneCode: phoneCode || "+44",
+          };
+          resolve(region);
+        } else {
+          resolve(null);
+        }
+      }
+    };
+
+    if (typeof window.addFlutterResponseListener === "function") {
+      unsubscribe = window.addFlutterResponseListener(handleFlutterResponse);
+    }
+
+    try {
+      console.log("[GEO_BRIDGE] 🚀 Sending { action: 'get_location' } to Flutter...");
+      if ((window as any).HabibApp?.postMessage) {
+        (window as any).HabibApp.postMessage(
+          JSON.stringify({ action: "get_location" }),
+        );
+      } else if ((window as any).flutter_inappwebview?.callHandler) {
+        (window as any).flutter_inappwebview.callHandler("get_location");
+      }
+    } catch (err) {
+      console.error("[GEO_BRIDGE] Failed to postMessage to Flutter:", err);
+      cleanup();
+      resolve(null);
+    }
+  });
+}
+
 export function getUserGeoRegion(force = false): Promise<UserGeoRegion> {
   if (!force) {
     const existing = getStoredUserGeoRegion();
@@ -96,9 +189,18 @@ export function getUserGeoRegion(force = false): Promise<UserGeoRegion> {
 
   geoRegionPromise = (async () => {
     try {
-      // 1. Primary: Habib Backend User Region API (/account/auth/user/region/)
+      // 1. Primary: Flutter Native Bridge (uses phone's direct native IP)
+      const bridgeRegion = await requestLocationFromFlutterBridge();
+      if (bridgeRegion && (bridgeRegion.country || bridgeRegion.city)) {
+        setStoredUserGeoRegion(bridgeRegion);
+        return bridgeRegion;
+      }
+
+      // 2. Secondary: Direct HTTP Client fallback (if in browser or bridge fails)
       try {
-        console.log("[GEO_AUTO_LOG] 🚀 Requesting /account/auth/user/region/ from backend...");
+        console.log(
+          "[GEO_AUTO_LOG] 🚀 Requesting /account/auth/user/region/ from backend...",
+        );
         const response = await http.get<{
           ip?: string;
           country?: string;
@@ -109,18 +211,22 @@ export function getUserGeoRegion(force = false): Promise<UserGeoRegion> {
         });
 
         const data = response.data;
-        console.log("[GEO_AUTO_LOG] 📥 Backend Raw Response:", JSON.stringify(data));
+        console.log(
+          "[GEO_AUTO_LOG] 📥 Backend Raw Response:",
+          JSON.stringify(data),
+        );
         if (data && (data.country || data.country_code || data.city)) {
+          const rawCountry = data.country || data.country_code || "";
           const isoCode =
             data.country_code ||
-            (data.country && data.country.trim().length === 2
-              ? data.country.trim().toUpperCase()
+            (rawCountry && rawCountry.trim().length === 2
+              ? rawCountry.trim().toUpperCase()
               : undefined);
           const phoneCode = resolvePhoneCodeFromCountryCode(isoCode);
           const countryName =
-            resolveCountryName(data.country || isoCode, "en") || data.country;
+            resolveCountryName(rawCountry || isoCode, "en") || rawCountry;
           const countryFa =
-            resolveCountryName(data.country || isoCode, "fa") || countryName;
+            resolveCountryName(rawCountry || isoCode, "fa") || countryName;
 
           console.log(
             `[GEO_AUTO_LOG] 🌍 Resolved Country: FA=${countryFa} | EN=${countryName} | Code=${isoCode} | City=${data.city || "None"} | IP=${data.ip || "None"}`,