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/react-native/ReactCommon/jsi/jsi/jsi.cpp

@@ -0,0 +1,534 @@
+/*
+ * 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.
+ */
+
+#include <cassert>
+#include <cmath>
+#include <cstdlib>
+#include <stdexcept>
+
+#include <jsi/instrumentation.h>
+#include <jsi/jsi.h>
+
+namespace facebook {
+namespace jsi {
+
+namespace {
+
+// This is used for generating short exception strings.
+std::string kindToString(const Value& v, Runtime* rt = nullptr) {
+  if (v.isUndefined()) {
+    return "undefined";
+  } else if (v.isNull()) {
+    return "null";
+  } else if (v.isBool()) {
+    return v.getBool() ? "true" : "false";
+  } else if (v.isNumber()) {
+    return "a number";
+  } else if (v.isString()) {
+    return "a string";
+  } else if (v.isSymbol()) {
+    return "a symbol";
+  } else if (v.isBigInt()) {
+    return "a bigint";
+  } else {
+    assert(v.isObject() && "Expecting object.");
+    return rt != nullptr && v.getObject(*rt).isFunction(*rt) ? "a function"
+                                                             : "an object";
+  }
+}
+
+// getPropertyAsFunction() will try to create a JSError.  If the
+// failure is in building a JSError, this will lead to infinite
+// recursion.  This function is used in place of getPropertyAsFunction
+// when building JSError, to avoid that infinite recursion.
+Value callGlobalFunction(Runtime& runtime, const char* name, const Value& arg) {
+  Value v = runtime.global().getProperty(runtime, name);
+  if (!v.isObject()) {
+    throw JSINativeException(
+        std::string("callGlobalFunction: JS global property '") + name +
+        "' is " + kindToString(v, &runtime) + ", expected a Function");
+  }
+  Object o = v.getObject(runtime);
+  if (!o.isFunction(runtime)) {
+    throw JSINativeException(
+        std::string("callGlobalFunction: JS global property '") + name +
+        "' is a non-callable Object, expected a Function");
+  }
+  Function f = std::move(o).getFunction(runtime);
+  return f.call(runtime, arg);
+}
+
+} // namespace
+
+Buffer::~Buffer() = default;
+
+MutableBuffer::~MutableBuffer() = default;
+
+PreparedJavaScript::~PreparedJavaScript() = default;
+
+Value HostObject::get(Runtime&, const PropNameID&) {
+  return Value();
+}
+
+void HostObject::set(Runtime& rt, const PropNameID& name, const Value&) {
+  std::string msg("TypeError: Cannot assign to property '");
+  msg += name.utf8(rt);
+  msg += "' on HostObject with default setter";
+  throw JSError(rt, msg);
+}
+
+HostObject::~HostObject() {}
+
+NativeState::~NativeState() {}
+
+Runtime::~Runtime() {}
+
+Instrumentation& Runtime::instrumentation() {
+  class NoInstrumentation : public Instrumentation {
+    std::string getRecordedGCStats() override {
+      return "";
+    }
+
+    std::unordered_map<std::string, int64_t> getHeapInfo(bool) override {
+      return std::unordered_map<std::string, int64_t>{};
+    }
+
+    void collectGarbage(std::string) override {}
+
+    void startTrackingHeapObjectStackTraces(
+        std::function<void(
+            uint64_t,
+            std::chrono::microseconds,
+            std::vector<HeapStatsUpdate>)>) override {}
+    void stopTrackingHeapObjectStackTraces() override {}
+
+    void startHeapSampling(size_t) override {}
+    void stopHeapSampling(std::ostream&) override {}
+
+    void createSnapshotToFile(const std::string&) override {
+      throw JSINativeException(
+          "Default instrumentation cannot create a heap snapshot");
+    }
+
+    void createSnapshotToStream(std::ostream&) override {
+      throw JSINativeException(
+          "Default instrumentation cannot create a heap snapshot");
+    }
+
+    std::string flushAndDisableBridgeTrafficTrace() override {
+      std::abort();
+    }
+
+    void writeBasicBlockProfileTraceToFile(const std::string&) const override {
+      std::abort();
+    }
+
+    void dumpProfilerSymbolsToFile(const std::string&) const override {
+      std::abort();
+    }
+  };
+
+  static NoInstrumentation sharedInstance;
+  return sharedInstance;
+}
+
+Value Runtime::createValueFromJsonUtf8(const uint8_t* json, size_t length) {
+  Function parseJson = global()
+                           .getPropertyAsObject(*this, "JSON")
+                           .getPropertyAsFunction(*this, "parse");
+  return parseJson.call(*this, String::createFromUtf8(*this, json, length));
+}
+
+Pointer& Pointer::operator=(Pointer&& other) {
+  if (ptr_) {
+    ptr_->invalidate();
+  }
+  ptr_ = other.ptr_;
+  other.ptr_ = nullptr;
+  return *this;
+}
+
+Object Object::getPropertyAsObject(Runtime& runtime, const char* name) const {
+  Value v = getProperty(runtime, name);
+
+  if (!v.isObject()) {
+    throw JSError(
+        runtime,
+        std::string("getPropertyAsObject: property '") + name + "' is " +
+            kindToString(v, &runtime) + ", expected an Object");
+  }
+
+  return v.getObject(runtime);
+}
+
+Function Object::getPropertyAsFunction(Runtime& runtime, const char* name)
+    const {
+  Object obj = getPropertyAsObject(runtime, name);
+  if (!obj.isFunction(runtime)) {
+    throw JSError(
+        runtime,
+        std::string("getPropertyAsFunction: property '") + name + "' is " +
+            kindToString(std::move(obj), &runtime) + ", expected a Function");
+  };
+
+  return std::move(obj).getFunction(runtime);
+}
+
+Array Object::asArray(Runtime& runtime) const& {
+  if (!isArray(runtime)) {
+    throw JSError(
+        runtime,
+        "Object is " + kindToString(Value(runtime, *this), &runtime) +
+            ", expected an array");
+  }
+  return getArray(runtime);
+}
+
+Array Object::asArray(Runtime& runtime) && {
+  if (!isArray(runtime)) {
+    throw JSError(
+        runtime,
+        "Object is " + kindToString(Value(runtime, *this), &runtime) +
+            ", expected an array");
+  }
+  return std::move(*this).getArray(runtime);
+}
+
+Function Object::asFunction(Runtime& runtime) const& {
+  if (!isFunction(runtime)) {
+    throw JSError(
+        runtime,
+        "Object is " + kindToString(Value(runtime, *this), &runtime) +
+            ", expected a function");
+  }
+  return getFunction(runtime);
+}
+
+Function Object::asFunction(Runtime& runtime) && {
+  if (!isFunction(runtime)) {
+    throw JSError(
+        runtime,
+        "Object is " + kindToString(Value(runtime, *this), &runtime) +
+            ", expected a function");
+  }
+  return std::move(*this).getFunction(runtime);
+}
+
+Value::Value(Value&& other) : Value(other.kind_) {
+  if (kind_ == BooleanKind) {
+    data_.boolean = other.data_.boolean;
+  } else if (kind_ == NumberKind) {
+    data_.number = other.data_.number;
+  } else if (kind_ >= PointerKind) {
+    new (&data_.pointer) Pointer(std::move(other.data_.pointer));
+  }
+  // when the other's dtor runs, nothing will happen.
+  other.kind_ = UndefinedKind;
+}
+
+Value::Value(Runtime& runtime, const Value& other) : Value(other.kind_) {
+  // data_ is uninitialized, so use placement new to create non-POD
+  // types in it.  Any other kind of initialization will call a dtor
+  // first, which is incorrect.
+  if (kind_ == BooleanKind) {
+    data_.boolean = other.data_.boolean;
+  } else if (kind_ == NumberKind) {
+    data_.number = other.data_.number;
+  } else if (kind_ == SymbolKind) {
+    new (&data_.pointer) Pointer(runtime.cloneSymbol(other.data_.pointer.ptr_));
+  } else if (kind_ == BigIntKind) {
+    new (&data_.pointer) Pointer(runtime.cloneBigInt(other.data_.pointer.ptr_));
+  } else if (kind_ == StringKind) {
+    new (&data_.pointer) Pointer(runtime.cloneString(other.data_.pointer.ptr_));
+  } else if (kind_ >= ObjectKind) {
+    new (&data_.pointer) Pointer(runtime.cloneObject(other.data_.pointer.ptr_));
+  }
+}
+
+Value::~Value() {
+  if (kind_ >= PointerKind) {
+    data_.pointer.~Pointer();
+  }
+}
+
+bool Value::strictEquals(Runtime& runtime, const Value& a, const Value& b) {
+  if (a.kind_ != b.kind_) {
+    return false;
+  }
+  switch (a.kind_) {
+    case UndefinedKind:
+    case NullKind:
+      return true;
+    case BooleanKind:
+      return a.data_.boolean == b.data_.boolean;
+    case NumberKind:
+      return a.data_.number == b.data_.number;
+    case SymbolKind:
+      return runtime.strictEquals(
+          static_cast<const Symbol&>(a.data_.pointer),
+          static_cast<const Symbol&>(b.data_.pointer));
+    case BigIntKind:
+      return runtime.strictEquals(
+          static_cast<const BigInt&>(a.data_.pointer),
+          static_cast<const BigInt&>(b.data_.pointer));
+    case StringKind:
+      return runtime.strictEquals(
+          static_cast<const String&>(a.data_.pointer),
+          static_cast<const String&>(b.data_.pointer));
+    case ObjectKind:
+      return runtime.strictEquals(
+          static_cast<const Object&>(a.data_.pointer),
+          static_cast<const Object&>(b.data_.pointer));
+  }
+  return false;
+}
+
+bool Value::asBool() const {
+  if (!isBool()) {
+    throw JSINativeException(
+        "Value is " + kindToString(*this) + ", expected a boolean");
+  }
+
+  return getBool();
+}
+
+double Value::asNumber() const {
+  if (!isNumber()) {
+    throw JSINativeException(
+        "Value is " + kindToString(*this) + ", expected a number");
+  }
+
+  return getNumber();
+}
+
+Object Value::asObject(Runtime& rt) const& {
+  if (!isObject()) {
+    throw JSError(
+        rt, "Value is " + kindToString(*this, &rt) + ", expected an Object");
+  }
+
+  return getObject(rt);
+}
+
+Object Value::asObject(Runtime& rt) && {
+  if (!isObject()) {
+    throw JSError(
+        rt, "Value is " + kindToString(*this, &rt) + ", expected an Object");
+  }
+  auto ptr = data_.pointer.ptr_;
+  data_.pointer.ptr_ = nullptr;
+  return static_cast<Object>(ptr);
+}
+
+Symbol Value::asSymbol(Runtime& rt) const& {
+  if (!isSymbol()) {
+    throw JSError(
+        rt, "Value is " + kindToString(*this, &rt) + ", expected a Symbol");
+  }
+
+  return getSymbol(rt);
+}
+
+Symbol Value::asSymbol(Runtime& rt) && {
+  if (!isSymbol()) {
+    throw JSError(
+        rt, "Value is " + kindToString(*this, &rt) + ", expected a Symbol");
+  }
+
+  return std::move(*this).getSymbol(rt);
+}
+
+BigInt Value::asBigInt(Runtime& rt) const& {
+  if (!isBigInt()) {
+    throw JSError(
+        rt, "Value is " + kindToString(*this, &rt) + ", expected a BigInt");
+  }
+
+  return getBigInt(rt);
+}
+
+BigInt Value::asBigInt(Runtime& rt) && {
+  if (!isBigInt()) {
+    throw JSError(
+        rt, "Value is " + kindToString(*this, &rt) + ", expected a BigInt");
+  }
+
+  return std::move(*this).getBigInt(rt);
+}
+
+String Value::asString(Runtime& rt) const& {
+  if (!isString()) {
+    throw JSError(
+        rt, "Value is " + kindToString(*this, &rt) + ", expected a String");
+  }
+
+  return getString(rt);
+}
+
+String Value::asString(Runtime& rt) && {
+  if (!isString()) {
+    throw JSError(
+        rt, "Value is " + kindToString(*this, &rt) + ", expected a String");
+  }
+
+  return std::move(*this).getString(rt);
+}
+
+String Value::toString(Runtime& runtime) const {
+  Function toString = runtime.global().getPropertyAsFunction(runtime, "String");
+  return toString.call(runtime, *this).getString(runtime);
+}
+
+uint64_t BigInt::asUint64(Runtime& runtime) const {
+  if (!isUint64(runtime)) {
+    throw JSError(runtime, "Lossy truncation in BigInt64::asUint64");
+  }
+  return getUint64(runtime);
+}
+
+int64_t BigInt::asInt64(Runtime& runtime) const {
+  if (!isInt64(runtime)) {
+    throw JSError(runtime, "Lossy truncation in BigInt64::asInt64");
+  }
+  return getInt64(runtime);
+}
+
+Array Array::createWithElements(
+    Runtime& rt,
+    std::initializer_list<Value> elements) {
+  Array result(rt, elements.size());
+  size_t index = 0;
+  for (const auto& element : elements) {
+    result.setValueAtIndex(rt, index++, element);
+  }
+  return result;
+}
+
+std::vector<PropNameID> HostObject::getPropertyNames(Runtime&) {
+  return {};
+}
+
+Runtime::ScopeState* Runtime::pushScope() {
+  return nullptr;
+}
+
+void Runtime::popScope(ScopeState*) {}
+
+JSError::JSError(Runtime& rt, Value&& value) {
+  setValue(rt, std::move(value));
+}
+
+JSError::JSError(Runtime& rt, std::string msg) : message_(std::move(msg)) {
+  try {
+    setValue(
+        rt,
+        callGlobalFunction(rt, "Error", String::createFromUtf8(rt, message_)));
+  } catch (const JSIException& ex) {
+    message_ = std::string(ex.what()) + " (while raising " + message_ + ")";
+    setValue(rt, String::createFromUtf8(rt, message_));
+  }
+}
+
+JSError::JSError(Runtime& rt, std::string msg, std::string stack)
+    : message_(std::move(msg)), stack_(std::move(stack)) {
+  try {
+    Object e(rt);
+    e.setProperty(rt, "message", String::createFromUtf8(rt, message_));
+    e.setProperty(rt, "stack", String::createFromUtf8(rt, stack_));
+    setValue(rt, std::move(e));
+  } catch (const JSIException& ex) {
+    setValue(rt, String::createFromUtf8(rt, ex.what()));
+  }
+}
+
+JSError::JSError(std::string what, Runtime& rt, Value&& value)
+    : JSIException(std::move(what)) {
+  setValue(rt, std::move(value));
+}
+
+JSError::JSError(Value&& value, std::string message, std::string stack)
+    : JSIException(message + "\n\n" + stack),
+      value_(std::make_shared<Value>(std::move(value))),
+      message_(std::move(message)),
+      stack_(std::move(stack)) {}
+
+void JSError::setValue(Runtime& rt, Value&& value) {
+  value_ = std::make_shared<Value>(std::move(value));
+
+  if ((message_.empty() || stack_.empty()) && value_->isObject()) {
+    auto obj = value_->getObject(rt);
+
+    if (message_.empty()) {
+      try {
+        Value message = obj.getProperty(rt, "message");
+        if (!message.isUndefined() && !message.isString()) {
+          message = callGlobalFunction(rt, "String", message);
+        }
+        if (message.isString()) {
+          message_ = message.getString(rt).utf8(rt);
+        } else if (!message.isUndefined()) {
+          message_ = "String(e.message) is a " + kindToString(message, &rt);
+        }
+      } catch (const JSIException& ex) {
+        message_ = std::string("[Exception while creating message string: ") +
+            ex.what() + "]";
+      }
+    }
+
+    if (stack_.empty()) {
+      try {
+        Value stack = obj.getProperty(rt, "stack");
+        if (!stack.isUndefined() && !stack.isString()) {
+          stack = callGlobalFunction(rt, "String", stack);
+        }
+        if (stack.isString()) {
+          stack_ = stack.getString(rt).utf8(rt);
+        } else if (!stack.isUndefined()) {
+          stack_ = "String(e.stack) is a " + kindToString(stack, &rt);
+        }
+      } catch (const JSIException& ex) {
+        message_ = std::string("[Exception while creating stack string: ") +
+            ex.what() + "]";
+      }
+    }
+  }
+
+  if (message_.empty()) {
+    try {
+      if (value_->isString()) {
+        message_ = value_->getString(rt).utf8(rt);
+      } else {
+        Value message = callGlobalFunction(rt, "String", *value_);
+        if (message.isString()) {
+          message_ = message.getString(rt).utf8(rt);
+        } else {
+          message_ = "String(e) is a " + kindToString(message, &rt);
+        }
+      }
+    } catch (const JSIException& ex) {
+      message_ = std::string("[Exception while creating message string: ") +
+          ex.what() + "]";
+    }
+  }
+
+  if (stack_.empty()) {
+    stack_ = "no stack";
+  }
+
+  if (what_.empty()) {
+    what_ = message_ + "\n\n" + stack_;
+  }
+}
+
+JSIException::~JSIException() {}
+
+JSINativeException::~JSINativeException() {}
+
+JSError::~JSError() {}
+
+} // namespace jsi
+} // namespace facebook