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/yaml/dist/nodes/Collection.d.ts

@@ -0,0 +1,73 @@
+import type { Schema } from '../schema/Schema';
+import { NODE_TYPE } from './identity';
+import { NodeBase } from './Node';
+export declare function collectionFromPath(schema: Schema, path: unknown[], value: unknown): import('./Node').Node;
+export declare const isEmptyPath: (path: Iterable<unknown> | null | undefined) => path is null | undefined;
+export declare abstract class Collection extends NodeBase {
+    schema: Schema | undefined;
+    [NODE_TYPE]: symbol;
+    items: unknown[];
+    /** An optional anchor on this node. Used by alias nodes. */
+    anchor?: string;
+    /**
+     * If true, stringify this and all child nodes using flow rather than
+     * block styles.
+     */
+    flow?: boolean;
+    constructor(type: symbol, schema?: Schema);
+    /**
+     * Create a copy of this collection.
+     *
+     * @param schema - If defined, overwrites the original's schema
+     */
+    clone(schema?: Schema): Collection;
+    /** Adds a value to the collection. */
+    abstract add(value: unknown): void;
+    /**
+     * Removes a value from the collection.
+     * @returns `true` if the item was found and removed.
+     */
+    abstract delete(key: unknown): boolean;
+    /**
+     * Returns item at `key`, or `undefined` if not found. By default unwraps
+     * scalar values from their surrounding node; to disable set `keepScalar` to
+     * `true` (collections are always returned intact).
+     */
+    abstract get(key: unknown, keepScalar?: boolean): unknown;
+    /**
+     * Checks if the collection includes a value with the key `key`.
+     */
+    abstract has(key: unknown): boolean;
+    /**
+     * Sets a value in this collection. For `!!set`, `value` needs to be a
+     * boolean to add/remove the item from the set.
+     */
+    abstract set(key: unknown, value: unknown): void;
+    /**
+     * Adds a value to the collection. For `!!map` and `!!omap` the value must
+     * be a Pair instance or a `{ key, value }` object, which may not have a key
+     * that already exists in the map.
+     */
+    addIn(path: Iterable<unknown>, value: unknown): void;
+    /**
+     * Removes a value from the collection.
+     * @returns `true` if the item was found and removed.
+     */
+    deleteIn(path: Iterable<unknown>): boolean;
+    /**
+     * Returns item at `key`, or `undefined` if not found. By default unwraps
+     * scalar values from their surrounding node; to disable set `keepScalar` to
+     * `true` (collections are always returned intact).
+     */
+    getIn(path: Iterable<unknown>, keepScalar?: boolean): unknown;
+    hasAllNullValues(allowScalar?: boolean): boolean;
+    /**
+     * Checks if the collection includes a value with the key `key`.
+     */
+    hasIn(path: Iterable<unknown>): boolean;
+    /**
+     * Sets a value in this collection. For `!!set`, `value` needs to be a
+     * boolean to add/remove the item from the set.
+     */
+    setIn(path: Iterable<unknown>, value: unknown): void;
+}