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/parse/cst.js

@@ -0,0 +1,112 @@
+'use strict';
+
+var cstScalar = require('./cst-scalar.js');
+var cstStringify = require('./cst-stringify.js');
+var cstVisit = require('./cst-visit.js');
+
+/** The byte order mark */
+const BOM = '\u{FEFF}';
+/** Start of doc-mode */
+const DOCUMENT = '\x02'; // C0: Start of Text
+/** Unexpected end of flow-mode */
+const FLOW_END = '\x18'; // C0: Cancel
+/** Next token is a scalar value */
+const SCALAR = '\x1f'; // C0: Unit Separator
+/** @returns `true` if `token` is a flow or block collection */
+const isCollection = (token) => !!token && 'items' in token;
+/** @returns `true` if `token` is a flow or block scalar; not an alias */
+const isScalar = (token) => !!token &&
+    (token.type === 'scalar' ||
+        token.type === 'single-quoted-scalar' ||
+        token.type === 'double-quoted-scalar' ||
+        token.type === 'block-scalar');
+/* istanbul ignore next */
+/** Get a printable representation of a lexer token */
+function prettyToken(token) {
+    switch (token) {
+        case BOM:
+            return '<BOM>';
+        case DOCUMENT:
+            return '<DOC>';
+        case FLOW_END:
+            return '<FLOW_END>';
+        case SCALAR:
+            return '<SCALAR>';
+        default:
+            return JSON.stringify(token);
+    }
+}
+/** Identify the type of a lexer token. May return `null` for unknown tokens. */
+function tokenType(source) {
+    switch (source) {
+        case BOM:
+            return 'byte-order-mark';
+        case DOCUMENT:
+            return 'doc-mode';
+        case FLOW_END:
+            return 'flow-error-end';
+        case SCALAR:
+            return 'scalar';
+        case '---':
+            return 'doc-start';
+        case '...':
+            return 'doc-end';
+        case '':
+        case '\n':
+        case '\r\n':
+            return 'newline';
+        case '-':
+            return 'seq-item-ind';
+        case '?':
+            return 'explicit-key-ind';
+        case ':':
+            return 'map-value-ind';
+        case '{':
+            return 'flow-map-start';
+        case '}':
+            return 'flow-map-end';
+        case '[':
+            return 'flow-seq-start';
+        case ']':
+            return 'flow-seq-end';
+        case ',':
+            return 'comma';
+    }
+    switch (source[0]) {
+        case ' ':
+        case '\t':
+            return 'space';
+        case '#':
+            return 'comment';
+        case '%':
+            return 'directive-line';
+        case '*':
+            return 'alias';
+        case '&':
+            return 'anchor';
+        case '!':
+            return 'tag';
+        case "'":
+            return 'single-quoted-scalar';
+        case '"':
+            return 'double-quoted-scalar';
+        case '|':
+        case '>':
+            return 'block-scalar-header';
+    }
+    return null;
+}
+
+exports.createScalarToken = cstScalar.createScalarToken;
+exports.resolveAsScalar = cstScalar.resolveAsScalar;
+exports.setScalarValue = cstScalar.setScalarValue;
+exports.stringify = cstStringify.stringify;
+exports.visit = cstVisit.visit;
+exports.BOM = BOM;
+exports.DOCUMENT = DOCUMENT;
+exports.FLOW_END = FLOW_END;
+exports.SCALAR = SCALAR;
+exports.isCollection = isCollection;
+exports.isScalar = isScalar;
+exports.prettyToken = prettyToken;
+exports.tokenType = tokenType;