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/metro-source-map/src/Consumer/SectionsConsumer.js.flow

@@ -0,0 +1,125 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @flow strict-local
+ * @format
+ * @oncall react_native
+ */
+
+'use strict';
+
+import type {IndexMap} from '../source-map';
+import type {
+  GeneratedOffset,
+  GeneratedPositionLookup,
+  IConsumer,
+  Mapping,
+  SourcePosition,
+} from './types.flow';
+
+const AbstractConsumer = require('./AbstractConsumer');
+const {EMPTY_POSITION, FIRST_COLUMN, FIRST_LINE} = require('./constants');
+const createConsumer = require('./createConsumer');
+const {subtractOffsetFromPosition} = require('./positionMath');
+const {greatestLowerBound} = require('./search');
+const {add, add0, get0, get1, sub, sub1} = require('ob1');
+
+/**
+ * A source map consumer that supports "indexed" source maps (that have a
+ * `sections` field and no top-level mappings).
+ */
+class SectionsConsumer extends AbstractConsumer implements IConsumer {
+  _consumers: $ReadOnlyArray<[GeneratedOffset, IConsumer]>;
+
+  constructor(sourceMap: IndexMap) {
+    super(sourceMap);
+    this._consumers = sourceMap.sections.map((section, index) => {
+      const generatedOffset = {
+        lines: add0(section.offset.line),
+        columns: add0(section.offset.column),
+      };
+      const consumer = createConsumer(section.map);
+      return [generatedOffset, consumer];
+    });
+  }
+
+  originalPositionFor(
+    generatedPosition: GeneratedPositionLookup,
+  ): SourcePosition {
+    const [generatedOffset, consumer] =
+      this._consumerForPosition(generatedPosition) || [];
+    if (!consumer) {
+      return {...EMPTY_POSITION};
+    }
+    return consumer.originalPositionFor(
+      subtractOffsetFromPosition(generatedPosition, generatedOffset),
+    );
+  }
+
+  *generatedMappings(): Iterable<Mapping> {
+    for (const [generatedOffset, consumer] of this._consumers) {
+      let first = true;
+      for (const mapping of consumer.generatedMappings()) {
+        if (
+          first &&
+          (get1(mapping.generatedLine) > 1 || get0(mapping.generatedColumn) > 0)
+        ) {
+          yield {
+            generatedLine: FIRST_LINE,
+            generatedColumn: FIRST_COLUMN,
+            source: null,
+            name: null,
+            originalLine: null,
+            originalColumn: null,
+          };
+        }
+        first = false;
+        yield {
+          ...mapping,
+          generatedLine: add(mapping.generatedLine, generatedOffset.lines),
+          generatedColumn: add(
+            mapping.generatedColumn,
+            generatedOffset.columns,
+          ),
+        };
+      }
+    }
+  }
+
+  _consumerForPosition(
+    generatedPosition: GeneratedPositionLookup,
+  ): ?[GeneratedOffset, IConsumer] {
+    const {line, column} = generatedPosition;
+    if (line == null || column == null) {
+      return null;
+    }
+    const index = greatestLowerBound(
+      this._consumers,
+      generatedPosition,
+      (position, [offset]) => {
+        const line0 = sub1(line);
+        const column0 = column;
+        if (line0 === offset.lines) {
+          return get0(sub(column0, offset.columns));
+        }
+        return get0(sub(line0, offset.lines));
+      },
+    );
+    return index != null ? this._consumers[index] : null;
+  }
+
+  sourceContentFor(source: string, nullOnMissing: true): ?string {
+    for (const [_, consumer] of this._consumers) {
+      const content = consumer.sourceContentFor(source, nullOnMissing);
+      if (content != null) {
+        return content;
+      }
+    }
+    return null;
+  }
+}
+
+module.exports = SectionsConsumer;