Update on Overleaf.

Software/components/core/include/core/CompanionChipStatus.hpp

@@ -0,0 +1,33 @@
+/**
+ * @file    CompanionChipStatus.hpp
+ * @brief   Boot-ready flags for Si4684, ADAU1701, and FSC-BT1035.
+ *
+ * DigiRadio firmware — https://github.com/manvalan/DigiRadio
+ *
+ * Copyright 2026 Michele Bigi
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * @author  Michele Bigi
+ * @date    2026-07-06
+ */
+#pragma once
+
+namespace core {
+
+/**
+ * @brief    CompanionChipStatus — companion-chip boot snapshot for /api/health.
+ *
+ * @dname    CompanionChipStatus
+ * @return   n/a (type)
+ * @pubstate Immutable aggregate; all true after successful HardwareBootstrap.
+ *
+ * @author   Michele Bigi
+ * @date     2026-07-06
+ */
+struct CompanionChipStatus {
+    bool si4684Ready;   ///< Si4684 HOST_LOAD completed.
+    bool adau1701Ready; ///< ADAU1701 SigmaStudio download completed.
+    bool bt1035Ready;   ///< BT1035 Line-In init (AT+AUXCFG=1) completed.
+};
+
+} // namespace core

Software/components/net/include/net/NetBootstrap.hpp

@@ -17,6 +17,7 @@
  */
 #pragma once
 
+#include "core/CompanionChipStatus.hpp"
 #include "core/ISecureStore.hpp"
 #include "net/NetError.hpp"
 #include "net/NetState.hpp"
@@ -65,7 +66,8 @@ public:
      */
     [[nodiscard]] static std::expected<NetBootstrap, NetError>
     start(core::ISecureStore& store, tuner::TunerService& tuner,
-          audio::AudioService& audio);
+          audio::AudioService& audio,
+          core::CompanionChipStatus companionChips);
 
     NetBootstrap(const NetBootstrap&) = delete;
     NetBootstrap& operator=(const NetBootstrap&) = delete;

Software/components/net/src/NetBootstrap.cpp

@@ -100,7 +100,8 @@ constexpr char kTag[] = "NetBootstrap";
  */
 [[nodiscard]] std::expected<NetBootstrap, NetError>
 startSetupMode(core::ISecureStore& store, tuner::TunerService& tuner,
-               audio::AudioService& audio)
+               audio::AudioService& audio,
+               core::CompanionChipStatus companionChips)
 {
     esp_netif_create_default_wifi_ap();
 
@@ -111,7 +112,8 @@ startSetupMode(core::ISecureStore& store, tuner::TunerService& tuner,
 
     SetupWebServer webServer;
     if (auto webResult =
-            webServer.start(store, NetState::SoftApSetup, tuner, audio);
+            webServer.start(store, NetState::SoftApSetup, tuner, audio,
+                            companionChips);
         !webResult) {
         return std::unexpected(webResult.error());
     }
@@ -134,7 +136,8 @@ startSetupMode(core::ISecureStore& store, tuner::TunerService& tuner,
  */
 [[nodiscard]] std::expected<NetBootstrap, NetError>
 startStaMode(core::ISecureStore& store, tuner::TunerService& tuner,
-             audio::AudioService& audio)
+             audio::AudioService& audio,
+             core::CompanionChipStatus companionChips)
 {
     auto credsResult = store.loadWifiCredentials();
     if (!credsResult) {
@@ -151,7 +154,8 @@ startStaMode(core::ISecureStore& store, tuner::TunerService& tuner,
 
     SetupWebServer webServer;
     if (auto webResult =
-            webServer.start(store, NetState::StaConnected, tuner, audio);
+            webServer.start(store, NetState::StaConnected, tuner, audio,
+                            companionChips);
         !webResult) {
         return std::unexpected(webResult.error());
     }
@@ -165,7 +169,8 @@ startStaMode(core::ISecureStore& store, tuner::TunerService& tuner,
 
 std::expected<NetBootstrap, NetError>
 NetBootstrap::start(core::ISecureStore& store, tuner::TunerService& tuner,
-                    audio::AudioService& audio)
+                    audio::AudioService& audio,
+                    core::CompanionChipStatus companionChips)
 {
     if (auto platform = initPlatform(); !platform) {
         return std::unexpected(platform.error());
@@ -176,14 +181,14 @@ NetBootstrap::start(core::ISecureStore& store, tuner::TunerService& tuner,
     }
 
     if (store.hasWifiCredentials()) {
-        auto staResult = startStaMode(store, tuner, audio);
+        auto staResult = startStaMode(store, tuner, audio, companionChips);
         if (staResult) {
             return staResult;
         }
         ESP_LOGW(kTag, "STA join failed — falling back to setup SoftAP");
     }
 
-    return startSetupMode(store, tuner, audio);
+    return startSetupMode(store, tuner, audio, companionChips);
 }
 
 NetBootstrap::NetBootstrap(std::optional<SoftApHost> softAp,

Software/components/net/src/SetupWebServer.cpp

@@ -20,6 +20,7 @@
 
 #include "core/AudioProfile.hpp"
 #include "core/AudioProfileJson.hpp"
+#include "core/CompanionChipStatus.hpp"
 #include "core/FirmwareVersion.hpp"
 #include "core/HealthStatus.hpp"
 #include "core/HealthStatusJson.hpp"
@@ -44,7 +45,7 @@ namespace net {
 
 namespace {
 constexpr char kTag[] = "SetupWebServer";
-constexpr char kFirmwareVersion[] = "0.5.0";
+constexpr char kFirmwareVersion[] = "0.6.0";
 constexpr unsigned kRebootDelaySec = 3;
 
 extern const uint8_t www_index_html_gz_start[] asm(
@@ -165,8 +166,17 @@ template <std::size_t N>
  */
 esp_err_t healthGetHandler(httpd_req_t* req)
 {
-    const core::HealthStatus status =
+    auto* ctx = routeContextFrom(req);
-        core::HealthStatus::ok(core::FirmwareVersion(kFirmwareVersion));
+    const core::CompanionChipStatus chips =
+        ctx != nullptr
+            ? ctx->companionChips
+            : core::CompanionChipStatus{
+                  .si4684Ready = false,
+                  .adau1701Ready = false,
+                  .bt1035Ready = false,
+              };
+    const core::HealthStatus status = core::HealthStatus::ok(
+        core::FirmwareVersion(kFirmwareVersion), chips);
     const std::string json = core::serializeHealthStatusJson(status);
     httpd_resp_set_type(req, "application/json");
     return httpd_resp_send(req, json.c_str(), json.size());
@@ -622,7 +632,7 @@ SetupWebServer::SetupWebServer()
     , netState_(NetState::Uninitialized)
     , tuner_(nullptr)
     , audio_(nullptr)
-    , routeContext_{nullptr, nullptr, nullptr}
+    , routeContext_{nullptr, nullptr, nullptr, {}}
 {
 }
 
@@ -639,7 +649,7 @@ SetupWebServer::SetupWebServer(SetupWebServer&& other) noexcept
     other.netState_ = NetState::Uninitialized;
     other.tuner_ = nullptr;
     other.audio_ = nullptr;
-    other.routeContext_ = {nullptr, nullptr, nullptr};
+    other.routeContext_ = {nullptr, nullptr, nullptr, {}};
 }
 
 SetupWebServer& SetupWebServer::operator=(SetupWebServer&& other) noexcept
@@ -659,7 +669,7 @@ SetupWebServer& SetupWebServer::operator=(SetupWebServer&& other) noexcept
         other.netState_ = NetState::Uninitialized;
         other.tuner_ = nullptr;
         other.audio_ = nullptr;
-        other.routeContext_ = {nullptr, nullptr, nullptr};
+        other.routeContext_ = {nullptr, nullptr, nullptr, {}};
     }
     return *this;
 }
@@ -670,14 +680,15 @@ SetupWebServer::~SetupWebServer()
         httpd_stop(server_);
         server_ = nullptr;
     }
-    routeContext_ = {nullptr, nullptr, nullptr};
+    routeContext_ = {nullptr, nullptr, nullptr, {}};
 }
 
 std::expected<void, NetError> SetupWebServer::start(
     core::ISecureStore& store,
     NetState netState,
     tuner::TunerService& tuner,
-    audio::AudioService& audio)
+    audio::AudioService& audio,
+    core::CompanionChipStatus companionChips)
 {
     if (server_ != nullptr) {
         return {};
@@ -690,6 +701,7 @@ std::expected<void, NetError> SetupWebServer::start(
     routeContext_.store = &store;
     routeContext_.tuner = &tuner;
     routeContext_.audio = &audio;
+    routeContext_.companionChips = companionChips;
 
     httpd_config_t config = HTTPD_DEFAULT_CONFIG();
     config.server_port = 80;
@@ -697,7 +709,7 @@ std::expected<void, NetError> SetupWebServer::start(
 
     if (httpd_start(&server_, &config) != ESP_OK) {
         ESP_LOGE(kTag, "httpd_start failed");
-        routeContext_ = {nullptr, nullptr, nullptr};
+        routeContext_ = {nullptr, nullptr, nullptr, {}};
         return std::unexpected(NetError::HttpServerStartFailed);
     }