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/postcss/lib/rule.d.ts

@@ -0,0 +1,126 @@
+import Container, {
+  ContainerProps,
+  ContainerWithChildren
+} from './container.js'
+
+declare namespace Rule {
+  export interface RuleRaws extends Record<string, unknown> {
+    /**
+     * The space symbols after the last child of the node to the end of the node.
+     */
+    after?: string
+
+    /**
+     * The space symbols before the node. It also stores `*`
+     * and `_` symbols before the declaration (IE hack).
+     */
+    before?: string
+
+    /**
+     * The symbols between the selector and `{` for rules.
+     */
+    between?: string
+
+    /**
+     * Contains `true` if there is semicolon after rule.
+     */
+    ownSemicolon?: string
+
+    /**
+     * The rule’s selector with comments.
+     */
+    selector?: {
+      raw: string
+      value: string
+    }
+
+    /**
+     * Contains `true` if the last child has an (optional) semicolon.
+     */
+    semicolon?: boolean
+  }
+
+  export type RuleProps = {
+    /** Information used to generate byte-to-byte equal node string as it was in the origin input. */
+    raws?: RuleRaws
+  } & (
+      | {
+          /** Selector or selectors of the rule. */
+          selector: string
+          selectors?: never
+        }
+      | {
+          selector?: never
+          /** Selectors of the rule represented as an array of strings. */
+          selectors: readonly string[]
+        }
+    ) & ContainerProps
+
+  // eslint-disable-next-line @typescript-eslint/no-use-before-define
+  export { Rule_ as default }
+}
+
+/**
+ * Represents a CSS rule: a selector followed by a declaration block.
+ *
+ * ```js
+ * Once (root, { Rule }) {
+ *   let a = new Rule({ selector: 'a' })
+ *   a.append(…)
+ *   root.append(a)
+ * }
+ * ```
+ *
+ * ```js
+ * const root = postcss.parse('a{}')
+ * const rule = root.first
+ * rule.type       //=> 'rule'
+ * rule.toString() //=> 'a{}'
+ * ```
+ */
+declare class Rule_ extends Container {
+  nodes: NonNullable<Container['nodes']>
+  parent: ContainerWithChildren | undefined
+  raws: Rule.RuleRaws
+  type: 'rule'
+  constructor(defaults?: Rule.RuleProps)
+
+  assign(overrides: object | Rule.RuleProps): this
+  clone(overrides?: Partial<Rule.RuleProps>): this
+
+  cloneAfter(overrides?: Partial<Rule.RuleProps>): this
+
+  cloneBefore(overrides?: Partial<Rule.RuleProps>): this
+  /**
+   * The rule’s full selector represented as a string.
+   *
+   * ```js
+   * const root = postcss.parse('a, b { }')
+   * const rule = root.first
+   * rule.selector //=> 'a, b'
+   * ```
+   */
+  get selector(): string
+  set selector(value: string)
+  /**
+   * An array containing the rule’s individual selectors.
+   * Groups of selectors are split at commas.
+   *
+   * ```js
+   * const root = postcss.parse('a, b { }')
+   * const rule = root.first
+   *
+   * rule.selector  //=> 'a, b'
+   * rule.selectors //=> ['a', 'b']
+   *
+   * rule.selectors = ['a', 'strong']
+   * rule.selector //=> 'a, strong'
+   * ```
+   */
+  get selectors(): string[]
+  set selectors(values: string[])
+}
+
+declare class Rule extends Rule_ {}
+
+export = Rule