feat: add mobile websocket sync

docs/ROADMAP.md

@@ -29,8 +29,8 @@ It assumes:
 - [x] Monorepo foundation scaffolded with root workspace config, shared runtime, shared product identity, local package linking, and verification scripts
 - [x] Backend migrated into `backend/` and passing typecheck, build, test, and backend verification gates
 - [x] Web migrated into `web/` with shared runtime, shared kill-switch gate, shared telemetry bootstrap, and normalized backend URL resolution
-- [x] Mobile migrated into `mobile/` with product identity, shared runtime bootstrap, launch-time kill-switch gate, transitional Supabase auth, and live backend polling
-- [-] DRY cleanup completed for runtime/config/bootstrap concerns, but not yet for all auth/session internals
+- [x] Mobile migrated into `mobile/` with product identity, shared runtime bootstrap, launch-time kill-switch gate, transitional Supabase auth, and live backend polling plus websocket-backed updates
+- [-] DRY cleanup completed for runtime/config/bootstrap concerns and shared Supabase bootstrap, but not yet for all auth/session internals
 - [!] Full common-platform auth replacement remains a follow-up for web and mobile; current implementation uses transitional Supabase-backed auth to stay compatible with the backend's current JWT boundary
 
 ## 3. Guiding Rules
@@ -308,7 +308,7 @@ Build mobile as a real ecosystem surface, not a mock UI shell.
 - [x] Implement launch-time kill-switch and maintenance handling
 - [ ] Add telemetry startup and error capture
 - [x] Define initial mobile scope
-- [-] Connect to backend and websocket/status contracts
+- [x] Connect to backend and websocket/status contracts
 - [ ] Add push-notification-ready architecture
 - [x] Define mobile action policy for monitor-first versus control-first flows
 - [x] Define alert and incident UX
@@ -323,6 +323,7 @@ Build mobile as a real ecosystem surface, not a mock UI shell.
 - [x] Positions
 - [x] Recent history
 - [x] Settings and sign out
+- [x] Live state refresh via websocket with polling fallback
 - [-] Safe operator controls limited to explicitly approved actions
 - [x] Maintain monitor-first, but not monitor-only scope
 
@@ -440,7 +441,7 @@ Validate that the new monorepo is safer and more coherent than the legacy setup
 - [ ] Define Expo structure
 - [ ] Define navigation shell
 - [ ] Define auth bootstrap and secure storage
-- [ ] Define status polling/live update strategy
+- [x] Define status polling/live update strategy
 - [ ] Define alert/incident UX
 - [ ] Define operator-safe interventions
 - [ ] Define offline and degraded-state behavior

mobile/lib/supabase.ts

@@ -1,26 +1,16 @@
 import AsyncStorage from '@react-native-async-storage/async-storage';
 import { createClient } from '@supabase/supabase-js';
+import { getMobileSupabaseConfig } from '../../shared/supabase-config.js';
 
-const supabaseUrl =
-  process.env.EXPO_PUBLIC_SUPABASE_URL ||
-  process.env.EXPO_PUBLIC_PLATFORM_SUPABASE_URL ||
-  process.env.EXPO_PUBLIC_PUBLIC_SUPABASE_URL;
+const supabaseConfig = getMobileSupabaseConfig();
 
-const supabaseAnonKey =
-  process.env.EXPO_PUBLIC_SUPABASE_ANON_KEY ||
-  process.env.EXPO_PUBLIC_PLATFORM_SUPABASE_ANON_KEY ||
-  process.env.EXPO_PUBLIC_PUBLIC_SUPABASE_ANON_KEY;
-
-const fallbackSupabaseUrl = 'https://placeholder.bytilyst.local';
-const fallbackSupabaseAnonKey = 'placeholder-anon-key';
-
-if (!supabaseUrl || !supabaseAnonKey) {
+if (!supabaseConfig.isConfigured) {
   console.warn('[mobile] Missing Supabase environment variables');
 }
 
 export const mobileSupabase = createClient(
-  supabaseUrl || fallbackSupabaseUrl,
-  supabaseAnonKey || fallbackSupabaseAnonKey,
+  supabaseConfig.url,
+  supabaseConfig.anonKey,
   {
     auth: {
       storage: AsyncStorage,

mobile/package.json

@@ -45,7 +45,8 @@
     "react-native-svg": "15.12.1",
     "react-native-url-polyfill": "^2.0.0",
     "react-native-web": "^0.21.0",
-    "react-native-webview": "13.15.0"
+    "react-native-webview": "13.15.0",
+    "socket.io-client": "^4.8.3"
   },
   "devDependencies": {
     "@babel/core": "^7.25.2",

mobile/providers/TradingDataProvider.tsx

@@ -1,5 +1,6 @@
 import React, { createContext, useCallback, useContext, useEffect, useMemo, useState } from 'react';
 import type { ReactNode } from 'react';
+import { io, type Socket } from 'socket.io-client';
 import { mobileRuntime } from '@/lib/runtime';
 import { useMobileAuth } from '@/providers/MobileAuthProvider';
 
@@ -121,6 +122,7 @@ interface TradingDataContextValue {
 }
 
 const TradingDataContext = createContext<TradingDataContextValue | null>(null);
+const tradingSocketUrl = mobileRuntime.tradingApiUrl.replace(/\/api$/, '');
 
 const EMPTY_STATE: TradingPortfolioSummary = {
   netPnl: 0,
@@ -179,10 +181,113 @@ export function TradingDataProvider({ children }: { children: ReactNode }) {
     }
     const interval = setInterval(() => {
       void fetchState();
-    }, 15000);
+    }, 60000);
     return () => clearInterval(interval);
   }, [accessToken, user, fetchState]);
 
+  useEffect(() => {
+    if (!accessToken || !user) {
+      return;
+    }
+
+    let socket: Socket | null = null;
+
+    const mergePartialState = (nextState: BotState) => {
+      setBotState((prev) => ({
+        ...(prev || nextState),
+        ...nextState,
+        health: nextState.health || prev?.health,
+      }));
+    };
+
+    socket = io(tradingSocketUrl, {
+      transports: ['polling', 'websocket'],
+      auth: { token: accessToken },
+    });
+
+    socket.on('connect', () => {
+      setConnected(true);
+      setError(null);
+    });
+
+    socket.on('disconnect', () => {
+      setConnected(false);
+    });
+
+    socket.on('connect_error', (socketError) => {
+      setError(socketError.message);
+    });
+
+    socket.on('state', (nextState: BotState) => {
+      mergePartialState(nextState);
+    });
+
+    socket.on('health_update', (health: HealthSnapshot) => {
+      setBotState((prev) => (prev ? { ...prev, health } : prev));
+    });
+
+    socket.on('symbol_update', ({ symbol, data }: { symbol: string; data: BotState['symbols'][string] }) => {
+      setBotState((prev) => {
+        if (!prev) return prev;
+        return {
+          ...prev,
+          symbols: {
+            ...prev.symbols,
+            [symbol]: data,
+          },
+        };
+      });
+    });
+
+    socket.on('new_alert', (alert: BotState['alerts'][number]) => {
+      setBotState((prev) => {
+        if (!prev) return prev;
+        return {
+          ...prev,
+          alerts: [alert, ...prev.alerts].slice(0, 25),
+        };
+      });
+    });
+
+    socket.on('positions_update', (positions: BotState['positions']) => {
+      setBotState((prev) => (prev ? { ...prev, positions } : prev));
+    });
+
+    socket.on('orders_update', (orders: BotState['orders']) => {
+      setBotState((prev) => (prev ? { ...prev, orders } : prev));
+    });
+
+    socket.on('history_update', (trade: BotState['history'][number]) => {
+      setBotState((prev) => {
+        if (!prev) return prev;
+        return {
+          ...prev,
+          history: [trade, ...prev.history].slice(0, 100),
+        };
+      });
+    });
+
+    socket.on('settings_update', (settings: BotState['settings']) => {
+      setBotState((prev) => (prev ? { ...prev, settings } : prev));
+    });
+
+    socket.on('account_snapshot', () => {
+      void fetchState();
+    });
+
+    socket.on('order_failure', () => {
+      void fetchState();
+    });
+
+    socket.on('operational_event', () => {
+      void fetchState();
+    });
+
+    return () => {
+      socket?.close();
+    };
+  }, [accessToken, user, fetchState]);
+
   const postTradingAction = useCallback(
     async (path: '/internal/trading/pause' | '/internal/trading/resume', reason?: string) => {
       if (!accessToken) {

pnpm-lock.yaml

@@ -190,6 +190,9 @@ importers:
       react-native-webview:
         specifier: 13.15.0
         version: 13.15.0(react-native@0.81.4(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0)
+      socket.io-client:
+        specifier: ^4.8.3
+        version: 4.8.3
     devDependencies:
       '@babel/core':
         specifier: ^7.25.2

shared/supabase-config.ts

@@ -0,0 +1,54 @@
+export interface SupabaseRuntimeConfig {
+  url: string;
+  anonKey: string;
+  isConfigured: boolean;
+}
+
+const fallbackSupabaseUrl = 'https://placeholder.bytilyst.local';
+const fallbackSupabaseAnonKey = 'placeholder-anon-key';
+
+function pickConfiguredValue(...values: Array<string | undefined>): string | undefined {
+  return values.find((value) => typeof value === 'string' && value.trim().length > 0)?.trim();
+}
+
+export function getWebSupabaseConfig(): SupabaseRuntimeConfig {
+  const url = pickConfiguredValue(
+    process.env.NEXT_PUBLIC_SUPABASE_URL,
+    process.env.VITE_SUPABASE_URL,
+    process.env.VITE_PLATFORM_SUPABASE_URL,
+    process.env.VITE_PUBLIC_SUPABASE_URL
+  );
+
+  const anonKey = pickConfiguredValue(
+    process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY,
+    process.env.VITE_SUPABASE_ANON_KEY,
+    process.env.VITE_PLATFORM_SUPABASE_ANON_KEY,
+    process.env.VITE_PUBLIC_SUPABASE_ANON_KEY
+  );
+
+  return {
+    url: url || fallbackSupabaseUrl,
+    anonKey: anonKey || fallbackSupabaseAnonKey,
+    isConfigured: Boolean(url && anonKey),
+  };
+}
+
+export function getMobileSupabaseConfig(): SupabaseRuntimeConfig {
+  const url = pickConfiguredValue(
+    process.env.EXPO_PUBLIC_SUPABASE_URL,
+    process.env.EXPO_PUBLIC_PLATFORM_SUPABASE_URL,
+    process.env.EXPO_PUBLIC_PUBLIC_SUPABASE_URL
+  );
+
+  const anonKey = pickConfiguredValue(
+    process.env.EXPO_PUBLIC_SUPABASE_ANON_KEY,
+    process.env.EXPO_PUBLIC_PLATFORM_SUPABASE_ANON_KEY,
+    process.env.EXPO_PUBLIC_PUBLIC_SUPABASE_ANON_KEY
+  );
+
+  return {
+    url: url || fallbackSupabaseUrl,
+    anonKey: anonKey || fallbackSupabaseAnonKey,
+    isConfigured: Boolean(url && anonKey),
+  };
+}

web/src/lib/supabaseClient.ts

@@ -1,21 +1,13 @@
 import { createClient } from '@supabase/supabase-js';
+import { getWebSupabaseConfig } from '../../../shared/supabase-config.js';
 
-const supabaseUrl =
-    import.meta.env.VITE_SUPABASE_URL ||
-    import.meta.env.VITE_PLATFORM_SUPABASE_URL ||
-    import.meta.env.VITE_PUBLIC_SUPABASE_URL;
-const supabaseAnonKey =
-    import.meta.env.VITE_SUPABASE_ANON_KEY ||
-    import.meta.env.VITE_PLATFORM_SUPABASE_ANON_KEY ||
-    import.meta.env.VITE_PUBLIC_SUPABASE_ANON_KEY;
-const fallbackSupabaseUrl = 'https://placeholder.bytilyst.local';
-const fallbackSupabaseAnonKey = 'placeholder-anon-key';
+const supabaseConfig = getWebSupabaseConfig();
 
-if (!supabaseUrl || !supabaseAnonKey) {
+if (!supabaseConfig.isConfigured) {
     console.warn('Missing Supabase environment variables');
 }
 
 export const supabase = createClient(
-    supabaseUrl || fallbackSupabaseUrl,
-    supabaseAnonKey || fallbackSupabaseAnonKey
+    supabaseConfig.url,
+    supabaseConfig.anonKey
 );