feat(smart-app): implement complete mobile app MVP

- App.tsx: full navigation (Auth stack + Main tabs with 5 screens)
- Auth: LoginScreen, RegisterScreen, ForgotPasswordScreen
- HomeScreen: dashboard with IoT metrics, weather widget, alerts, quick actions, sensors
- MapScreen: interactive map with layer toggles (6 layers)
- MarketplaceScreen: categories (6), products (5), search
- ChatScreen: AI chat with quick prompts (4), bot responses
- ProfileScreen: user info, stats, menu (9 items), logout
- AlertsScreen: alert list with severity, acknowledge
- SensorsScreen: sensor list with type filters (6 types), search
- ZonesScreen: zone cards with stats
- SettingsScreen: language picker (FR/EN/ES/DE), privacy, about
- Stores: iotStore (sensors, zones, alerts), notificationStore, uiStore + i18n
- Hooks: useSensors, useAlerts, useNotifications, useLocation
- Components: Card, Button, LoadingSpinner, ErrorBoundary, Header
- Services: iotService, notificationService (with axios API client)
- Utils: formatters (temp, AQI, noise, dates), validators (email, password, IBAN)
- Theme: colors.ts with full design system (Blue Ocean palette)
- Ditto: fixed MongoDB connection, new JWT secrets, official gateway image

smart-app-city/frontend/node_modules/graphql/validation/validate.mjs

@@ -0,0 +1,107 @@
+import devAssert from "../jsutils/devAssert.mjs";
+import { GraphQLError } from "../error/GraphQLError.mjs";
+import { visit, visitInParallel } from "../language/visitor.mjs";
+import { assertValidSchema } from "../type/validate.mjs";
+import { TypeInfo, visitWithTypeInfo } from "../utilities/TypeInfo.mjs";
+import { specifiedRules, specifiedSDLRules } from "./specifiedRules.mjs";
+import { SDLValidationContext, ValidationContext } from "./ValidationContext.mjs";
+/**
+ * Implements the "Validation" section of the spec.
+ *
+ * Validation runs synchronously, returning an array of encountered errors, or
+ * an empty array if no errors were encountered and the document is valid.
+ *
+ * A list of specific validation rules may be provided. If not provided, the
+ * default list of rules defined by the GraphQL specification will be used.
+ *
+ * Each validation rules is a function which returns a visitor
+ * (see the language/visitor API). Visitor methods are expected to return
+ * GraphQLErrors, or Arrays of GraphQLErrors when invalid.
+ *
+ * Optionally a custom TypeInfo instance may be provided. If not provided, one
+ * will be created from the provided schema.
+ */
+
+export function validate(schema, documentAST) {
+  var rules = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : specifiedRules;
+  var typeInfo = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : new TypeInfo(schema);
+  var options = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : {
+    maxErrors: undefined
+  };
+  documentAST || devAssert(0, 'Must provide document.'); // If the schema used for validation is invalid, throw an error.
+
+  assertValidSchema(schema);
+  var abortObj = Object.freeze({});
+  var errors = [];
+  var context = new ValidationContext(schema, documentAST, typeInfo, function (error) {
+    if (options.maxErrors != null && errors.length >= options.maxErrors) {
+      errors.push(new GraphQLError('Too many validation errors, error limit reached. Validation aborted.'));
+      throw abortObj;
+    }
+
+    errors.push(error);
+  }); // This uses a specialized visitor which runs multiple visitors in parallel,
+  // while maintaining the visitor skip and break API.
+
+  var visitor = visitInParallel(rules.map(function (rule) {
+    return rule(context);
+  })); // Visit the whole document with each instance of all provided rules.
+
+  try {
+    visit(documentAST, visitWithTypeInfo(typeInfo, visitor));
+  } catch (e) {
+    if (e !== abortObj) {
+      throw e;
+    }
+  }
+
+  return errors;
+}
+/**
+ * @internal
+ */
+
+export function validateSDL(documentAST, schemaToExtend) {
+  var rules = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : specifiedSDLRules;
+  var errors = [];
+  var context = new SDLValidationContext(documentAST, schemaToExtend, function (error) {
+    errors.push(error);
+  });
+  var visitors = rules.map(function (rule) {
+    return rule(context);
+  });
+  visit(documentAST, visitInParallel(visitors));
+  return errors;
+}
+/**
+ * Utility function which asserts a SDL document is valid by throwing an error
+ * if it is invalid.
+ *
+ * @internal
+ */
+
+export function assertValidSDL(documentAST) {
+  var errors = validateSDL(documentAST);
+
+  if (errors.length !== 0) {
+    throw new Error(errors.map(function (error) {
+      return error.message;
+    }).join('\n\n'));
+  }
+}
+/**
+ * Utility function which asserts a SDL document is valid by throwing an error
+ * if it is invalid.
+ *
+ * @internal
+ */
+
+export function assertValidSDLExtension(documentAST, schema) {
+  var errors = validateSDL(documentAST, schema);
+
+  if (errors.length !== 0) {
+    throw new Error(errors.map(function (error) {
+      return error.message;
+    }).join('\n\n'));
+  }
+}