standardize mobile api transport for gyms and core services

apps/mobile/src/app/(tabs)/profile.tsx

@@ -18,8 +18,8 @@ import { ListItem } from "../../components/ListItem";
 import { MinimalButton } from "../../components/MinimalButton";
 import { Badge } from "../../components/Badge";
 import { IconContainer } from "../../components/IconContainer";
-import { API_BASE_URL, API_ENDPOINTS } from "../../config/api";
 import { fitnessProfileApi, FitnessProfile } from "../../api/fitnessProfile";
+import { gymsApi, type Gym } from "../../api/gyms";
 import log from "../../utils/logger";
 
 export default function ProfileScreen() {
@@ -29,9 +29,7 @@ export default function ProfileScreen() {
   const { colors, typography, theme: activeTheme, setTheme } = useTheme();
   const { getToken } = useAuth();
 
-  const [gyms, setGyms] = useState<
-    Array<{ id: string; name: string; location?: string }>
-  >([]);
+  const [gyms, setGyms] = useState<Gym[]>([]);
   const [gymsLoading, setGymsLoading] = useState(false);
   const [selectedGymId, setSelectedGymId] = useState<string | null>(null);
   const [currentGymId, setCurrentGymId] = useState<string | null>(null);
@@ -76,51 +74,14 @@ export default function ProfileScreen() {
     try {
       setGymsLoading(true);
       const token = await getToken();
-      const url = `${API_BASE_URL}${API_ENDPOINTS.GYMS}`;
-      log.debug("Loading gyms", { url });
-      const res = await fetch(url, {
-        headers: token ? { Authorization: `Bearer ${token}` } : undefined,
-      });
-      const contentType = res.headers.get("content-type") || "";
-      if (!res.ok) {
-        const text = await res.text().catch(() => "");
-        log.error(
-          "Failed to fetch gyms - non-OK response",
-          new Error(text.slice(0, 200)),
-          { status: res.status },
-        );
-        setGyms([]);
-        return;
-      }
-      if (!contentType.includes("application/json")) {
-        const text = await res.text().catch(() => "");
-        log.error(
-          "Failed to fetch gyms - expected JSON",
-          new Error(text.slice(0, 200)),
-          { contentType },
-        );
-        setGyms([]);
-        return;
-      }
-      let data: any = null;
-      try {
-        data = await res.json();
-      } catch (e) {
-        const text = await res.text().catch(() => "");
-        log.error("Failed to parse gyms JSON", e, {
-          bodyPreview: text?.slice(0, 200),
-        });
-        setGyms([]);
-        return;
-      }
-      const list = Array.isArray(data) ? data : [];
+      const list = await gymsApi.getGyms(token);
       setGyms(list);
       const gid =
         currentGymId ??
         ((user?.publicMetadata as any)?.gymId as string | undefined) ??
         null;
       if (gid) {
-        const g = list.find((x: any) => x.id === gid);
+        const g = list.find((x) => x.id === gid);
         setCurrentGymId(gid);
         setCurrentGymName(g?.name ?? null);
         if (selectedGymId === null) setSelectedGymId(gid);
@@ -136,42 +97,7 @@ export default function ProfileScreen() {
   const handleApplyGym = async () => {
     try {
       const token = await getToken();
-      const url = `${API_BASE_URL}${API_ENDPOINTS.USERS.GYM}`;
-      log.debug("Updating gym selection", {
-        url,
-        gymId: selectedGymId,
-        token: token ? "present" : "missing",
-      });
-      const res = await fetch(url, {
-        method: "PATCH",
-        headers: {
-          "Content-Type": "application/json",
-          ...(token ? { Authorization: `Bearer ${token}` } : {}),
-        },
-        body: JSON.stringify({ gymId: selectedGymId }),
-      });
-      const contentType = res.headers.get("content-type") || "";
-      if (!res.ok) {
-        const text = await res.text().catch(() => "");
-        log.error(
-          "Failed to update gym selection - non-OK response",
-          new Error(text.slice(0, 200)),
-          { status: res.status },
-        );
-        Alert.alert("Error", "Failed to update gym selection");
-        return;
-      }
-      if (contentType.includes("application/json")) {
-        try {
-          const data = await res.json();
-          log.debug("Gym selection updated", { data });
-        } catch (e) {
-          const text = await res.text().catch(() => "");
-          log.error("Failed to parse update response JSON", e, {
-            bodyPreview: text?.slice(0, 200),
-          });
-        }
-      }
+      await gymsApi.updateUserGym(selectedGymId, token);
       setCurrentGymId(selectedGymId);
       setCurrentGymName(
         selectedGymId