fix: move the babylon context hash call UI only in web3 build

diff --git a/src/ui/gui_views/multi/gui_derive_context_hash_request_view.c b/src/ui/gui_views/multi/gui_derive_context_hash_request_view.c
deleted file mode 100644
index ceed939..0000000
--- a/src/ui/gui_views/multi/gui_derive_context_hash_request_view.c
+++ /dev/null
@@ -1,70 +0,0 @@
-#include "gui.h"
-#include "gui_obj.h"
-#include "gui_views.h"
-#include "gui_derive_context_hash_request_widgets.h"
-#include "gui_keyboard_hintbox.h"
-#include "gui_lock_widgets.h"
-
-int32_t GuiDeriveContextHashRequestViewEventProcess(void *self, uint16_t usEvent, void *param, uint16_t usLen)
-{
-    bool isUsb = false;
-    switch (usEvent) {
-    case GUI_EVENT_OBJ_INIT:
-        if (param != NULL) {
-            isUsb = true;
-        }
-        GuiDeriveContextHashRequestInit(isUsb);
-        break;
-    case GUI_EVENT_OBJ_DEINIT:
-        GuiDeriveContextHashRequestDeInit();
-        break;
-    case GUI_EVENT_REFRESH:
-        GuiDeriveContextHashRequestRefresh();
-        break;
-    case SIG_BACKGROUND_UR_GENERATE_SUCCESS:
-        GuiDeriveContextHashWidgetHandleURGenerate((char *)param, usLen);
-        break;
-    case SIG_BACKGROUND_UR_UPDATE:
-        GuiDeriveContextHashWidgetHandleURUpdate((char *)param, usLen);
-        break;
-    case SIG_BACKGROUND_UR_GENERATE_FAIL:
-        GuiDeriveContextHashWidgetHandleURGenerateFail((char *)param);
-        break;
-    case SIG_VERIFY_PASSWORD_PASS:
-        if (param != NULL) {
-            uint16_t sig = *(uint16_t *)param;
-            if (sig == SIG_LOCK_VIEW_SCREEN_GO_HOME_PASS) {
-                GuiLockScreenToHome();
-                return SUCCESS_CODE;
-            }
-        }
-        DeriveContextHashHiddenKeyboardAndShowAnimateQR();
-        break;
-    case SIG_VERIFY_PASSWORD_FAIL:
-        if (param != NULL) {
-            PasswordVerifyResult_t *passwordVerifyResult = (PasswordVerifyResult_t *)param;
-            uint16_t sig = *(uint16_t *) passwordVerifyResult->signal;
-            if (sig == SIG_LOCK_VIEW_SCREEN_GO_HOME_PASS) {
-                GuiLockScreenPassCode(false);
-                GuiLockScreenErrorCount(param);
-                return SUCCESS_CODE;
-            }
-        }
-        GuiDeriveContextHashPasswordErrorCount(param);
-        break;
-    case SIG_INIT_PULLOUT_USB:
-        GuiDeriveContextHashUsbPullout();
-        break;
-    default:
-        return ERR_GUI_UNHANDLED;
-    }
-    return SUCCESS_CODE;
-}
-
-GUI_VIEW g_deriveContextHashRequestView = {
-    .id = SCREEN_DERIVE_CONTEXT_HASH_REQUEST,
-    .previous = NULL,
-    .isActive = false,
-    .optimization = false,
-    .pEvtHandler = GuiDeriveContextHashRequestViewEventProcess,
-};
diff --git a/src/ui/gui_views/multi/web3/gui_derive_context_hash_request_view.c b/src/ui/gui_views/multi/web3/gui_derive_context_hash_request_view.c
new file mode 100644
index 0000000..ceed939
--- /dev/null
+++ b/src/ui/gui_views/multi/web3/gui_derive_context_hash_request_view.c
@@ -0,0 +1,70 @@
+#include "gui.h"
+#include "gui_obj.h"
+#include "gui_views.h"
+#include "gui_derive_context_hash_request_widgets.h"
+#include "gui_keyboard_hintbox.h"
+#include "gui_lock_widgets.h"
+
+int32_t GuiDeriveContextHashRequestViewEventProcess(void *self, uint16_t usEvent, void *param, uint16_t usLen)
+{
+    bool isUsb = false;
+    switch (usEvent) {
+    case GUI_EVENT_OBJ_INIT:
+        if (param != NULL) {
+            isUsb = true;
+        }
+        GuiDeriveContextHashRequestInit(isUsb);
+        break;
+    case GUI_EVENT_OBJ_DEINIT:
+        GuiDeriveContextHashRequestDeInit();
+        break;
+    case GUI_EVENT_REFRESH:
+        GuiDeriveContextHashRequestRefresh();
+        break;
+    case SIG_BACKGROUND_UR_GENERATE_SUCCESS:
+        GuiDeriveContextHashWidgetHandleURGenerate((char *)param, usLen);
+        break;
+    case SIG_BACKGROUND_UR_UPDATE:
+        GuiDeriveContextHashWidgetHandleURUpdate((char *)param, usLen);
+        break;
+    case SIG_BACKGROUND_UR_GENERATE_FAIL:
+        GuiDeriveContextHashWidgetHandleURGenerateFail((char *)param);
+        break;
+    case SIG_VERIFY_PASSWORD_PASS:
+        if (param != NULL) {
+            uint16_t sig = *(uint16_t *)param;
+            if (sig == SIG_LOCK_VIEW_SCREEN_GO_HOME_PASS) {
+                GuiLockScreenToHome();
+                return SUCCESS_CODE;
+            }
+        }
+        DeriveContextHashHiddenKeyboardAndShowAnimateQR();
+        break;
+    case SIG_VERIFY_PASSWORD_FAIL:
+        if (param != NULL) {
+            PasswordVerifyResult_t *passwordVerifyResult = (PasswordVerifyResult_t *)param;
+            uint16_t sig = *(uint16_t *) passwordVerifyResult->signal;
+            if (sig == SIG_LOCK_VIEW_SCREEN_GO_HOME_PASS) {
+                GuiLockScreenPassCode(false);
+                GuiLockScreenErrorCount(param);
+                return SUCCESS_CODE;
+            }
+        }
+        GuiDeriveContextHashPasswordErrorCount(param);
+        break;
+    case SIG_INIT_PULLOUT_USB:
+        GuiDeriveContextHashUsbPullout();
+        break;
+    default:
+        return ERR_GUI_UNHANDLED;
+    }
+    return SUCCESS_CODE;
+}
+
+GUI_VIEW g_deriveContextHashRequestView = {
+    .id = SCREEN_DERIVE_CONTEXT_HASH_REQUEST,
+    .previous = NULL,
+    .isActive = false,
+    .optimization = false,
+    .pEvtHandler = GuiDeriveContextHashRequestViewEventProcess,
+};
diff --git a/src/ui/gui_widgets/multi/gui_derive_context_hash_request_widgets.c b/src/ui/gui_widgets/multi/gui_derive_context_hash_request_widgets.c
deleted file mode 100644
index 88d8d63..0000000
--- a/src/ui/gui_widgets/multi/gui_derive_context_hash_request_widgets.c
+++ /dev/null
@@ -1,398 +0,0 @@
-#include "gui.h"
-#include "gui_page.h"
-#include "librust_c.h"
-#include "keystore.h"
-#include "user_memory.h"
-#include "gui_button.h"
-#include "gui_hintbox.h"
-#include "gui_obj.h"
-#include "gui_views.h"
-#include "gui_chain.h"
-#include "secret_cache.h"
-#include "account_manager.h"
-#include "account_public_info.h"
-#include "gui_keyboard_hintbox.h"
-#include "gui_lock_widgets.h"
-#include "gui_animating_qrcode.h"
-#include "gui_attention_hintbox.h"
-#include "gui_pending_hintbox.h"
-#include "gui_derive_context_hash_request_widgets.h"
-
-typedef struct {
-    uint8_t currentTile;
-    PageWidget_t *pageWidget;
-    lv_obj_t *tileView;
-    lv_obj_t *qrCode;
-} DeriveContextHashWidget_t;
-
-typedef enum {
-    TILE_APPROVE,
-    TILE_QRCODE,
-
-    TILE_BUTT,
-} PAGE_TILE;
-
-// Slider value (0-100) at which the confirm action triggers, matching the sign-tx UI.
-#define DCH_CONFIRM_SLIDE_PROCESS 66
-
-static URParseResult *g_urResult = NULL;
-static URParseMultiResult *g_urMultiResult = NULL;
-static bool g_isMulti = false;
-static void *g_data = NULL;
-static DeriveContextHashWidget_t g_widget;
-static DeriveContextHashCallData *g_callData = NULL;
-static Response_DeriveContextHashCallData *g_response = NULL;
-static char *g_address = NULL;
-static lv_obj_t *g_approveTile = NULL;
-static KeyboardWidget_t *g_keyboardWidget = NULL;
-
-static void FreeDeriveContextHashMemory(void);
-static void ModelParse(void);
-static bool DeriveConnectedAddress(void);
-static UREncodeResult *ModelGenerateSyncUR(void);
-static void GuiCreateApproveWidget(lv_obj_t *parent);
-static void GuiCreateQRCodeWidget(lv_obj_t *parent);
-static void ConfirmSliderHandler(lv_event_t *e);
-static void CloseInvalidRequestHandler(lv_event_t *e);
-static void OnReturnHandler(lv_event_t *e);
-static void NormalizeDisplayKeyPath(char *out, uint32_t outSize, const char *keyPath);
-static void GuiShowKeyBoardDialog(lv_obj_t *parent);
-static void NextTile(void);
-static void PrevTile(void);
-
-void GuiSetDeriveContextHashRequestData(void *urResult, void *multiResult, bool is_multi)
-{
-    FreeDeriveContextHashMemory();
-    g_urResult = urResult;
-    g_urMultiResult = multiResult;
-    g_isMulti = is_multi;
-    g_data = g_isMulti ? g_urMultiResult->data : g_urResult->data;
-}
-
-static void FreeDeriveContextHashMemory(void)
-{
-    CHECK_FREE_UR_RESULT(g_urResult, false);
-    CHECK_FREE_UR_RESULT(g_urMultiResult, true);
-    if (g_response != NULL) {
-        free_Response_DeriveContextHashCallData(g_response);
-        g_response = NULL;
-    }
-    if (g_address != NULL) {
-        SRAM_FREE(g_address);
-        g_address = NULL;
-    }
-}
-
-static void ModelParse(void)
-{
-    g_response = parse_derive_context_hash(g_data);
-    g_callData = g_response->data;
-}
-
-// Derive the connected key's address (seedless, from the cached account xpub) so the
-// user can confirm it on the approval screen.
-static bool DeriveConnectedAddress(void)
-{
-    if (g_callData == NULL || g_callData->key_path == NULL) {
-        return false;
-    }
-
-    const char *keyPath = g_callData->key_path;
-    if (strncmp(keyPath, "m/", 2) == 0 || strncmp(keyPath, "M/", 2) == 0) {
-        keyPath += 2;
-    }
-    int purpose = atoi(keyPath);
-    ChainType xpubType;
-    switch (purpose) {
-    case 44:
-        xpubType = XPUB_TYPE_BTC_LEGACY;
-        break;
-    case 49:
-        xpubType = XPUB_TYPE_BTC;
-        break;
-    case 84:
-        xpubType = XPUB_TYPE_BTC_NATIVE_SEGWIT;
-        break;
-    case 86:
-        xpubType = XPUB_TYPE_BTC_TAPROOT;
-        break;
-    default:
-        return false;
-    }
-    char *xpub = GetCurrentAccountPublicKey(xpubType);
-    if (xpub == NULL) {
-        return false;
-    }
-    char hdPath[BUFFER_SIZE_64] = {0};
-    NormalizeDisplayKeyPath(hdPath, sizeof(hdPath), g_callData->key_path);
-    if (hdPath[0] == '\0') {
-        return false;
-    }
-    SimpleResponse_c_char *result = btcoin_get_address_with_network(hdPath, xpub, g_callData->network);
-    if (result->error_code == 0 && result->data != NULL) {
-        g_address = SRAM_MALLOC(strnlen_s(result->data, BUFFER_SIZE_128) + 1);
-        strcpy(g_address, result->data);
-        free_simple_response_c_char(result);
-        return true;
-    }
-    free_simple_response_c_char(result);
-    return false;
-}
-
-void GuiDeriveContextHashRequestInit(bool isUsb)
-{
-    GUI_PAGE_DEL(g_widget.pageWidget);
-    g_widget.pageWidget = CreatePageWidget();
-    SetNavBarLeftBtn(g_widget.pageWidget->navBarWidget, NVS_BAR_RETURN, CloseCurrentViewHandler, NULL);
-    SetMidBtnLabel(g_widget.pageWidget->navBarWidget, NVS_BAR_MID_LABEL, _("Derive Context Hash"));
-
-    ModelParse();
-    // Rust validated the request (appName allow-list, network, context, key path).
-    // On failure `g_callData` is NULL, so show the error and skip the confirm UI
-    // instead of dereferencing it. The nav-bar back button returns to the scanner.
-    if (g_response->error_code != 0 || g_callData == NULL) {
-        char *message = g_response->error_message != NULL
-                        ? g_response->error_message
-                        : (char *)_("Invalid derive-context-hash request");
-        GuiCreateHardwareCallInvaildParamHintboxWithHandler(
-            (char *)_("Invalid Request"), message, CloseInvalidRequestHandler);
-        return;
-    }
-    if (!DeriveConnectedAddress()) {
-        GuiCreateHardwareCallInvaildParamHintboxWithHandler(
-            (char *)_("Invalid Request"), (char *)_("Invalid derive-context-hash key path"),
-            CloseInvalidRequestHandler);
-        return;
-    }
-
-    lv_obj_t *tileView = GuiCreateTileView(g_widget.pageWidget->contentZone);
-    lv_obj_t *tile = lv_tileview_add_tile(tileView, TILE_APPROVE, 0, LV_DIR_HOR);
-    GuiCreateApproveWidget(tile);
-
-    tile = lv_tileview_add_tile(tileView, TILE_QRCODE, 0, LV_DIR_HOR);
-    GuiCreateQRCodeWidget(tile);
-
-    g_widget.tileView = tileView;
-    g_widget.currentTile = TILE_APPROVE;
-    lv_obj_set_tile_id(g_widget.tileView, g_widget.currentTile, 0, LV_ANIM_OFF);
-}
-
-void GuiDeriveContextHashRequestDeInit(void)
-{
-    GuiDeleteKeyboardWidget(g_keyboardWidget);
-    GuiCloseAttentionHintbox();
-    GUI_PAGE_DEL(g_widget.pageWidget);
-    GuiAnimatingQRCodeDestroyTimer();
-    FreeDeriveContextHashMemory();
-    g_approveTile = NULL;
-    SetPageLockScreen(true);
-}
-
-void GuiDeriveContextHashRequestRefresh(void)
-{
-    GuiAnimatingQRCodeControl(false);
-}
-
-static void CreateInfoRow(lv_obj_t *parent, const char *title, const char *value)
-{
-    GuiCreateNoticeLabel(parent, title);
-    lv_obj_t *valueLabel = GuiCreateIllustrateLabel(parent, value == NULL ? "" : value);
-    lv_obj_set_width(valueLabel, lv_pct(100));
-    lv_label_set_long_mode(valueLabel, LV_LABEL_LONG_WRAP);
-}
-
-static void NormalizeDisplayKeyPath(char *out, uint32_t outSize, const char *keyPath)
-{
-    if (out == NULL || outSize == 0) {
-        return;
-    }
-    out[0] = '\0';
-    if (keyPath == NULL) {
-        return;
-    }
-    if (strncmp(keyPath, "m/", 2) == 0 || strncmp(keyPath, "M/", 2) == 0) {
-        snprintf_s(out, outSize, "%s", keyPath);
-        out[0] = 'M';
-    } else {
-        snprintf_s(out, outSize, "M/%s", keyPath);
-    }
-}
-
-static void GuiCreateApproveWidget(lv_obj_t *parent)
-{
-    g_approveTile = parent;
-    lv_obj_t *label = GuiCreateIllustrateLabel(parent, _("Derive Context Hash Request"));
-    lv_obj_align(label, LV_ALIGN_TOP_LEFT, 36, 8);
-
-    // Outer fixed-height card = the visible scroll window.
-    lv_obj_t *cont = GuiCreateContainerWithParent(parent, 408, 480);
-    lv_obj_align(cont, LV_ALIGN_TOP_MID, 0, 50);
-    lv_obj_set_style_radius(cont, 24, LV_PART_MAIN);
-    lv_obj_set_style_bg_color(cont, WHITE_COLOR, LV_PART_MAIN);
-    lv_obj_set_style_bg_opa(cont, LV_OPA_12, LV_PART_MAIN);
-    lv_obj_add_flag(cont, LV_OBJ_FLAG_SCROLLABLE);
-    lv_obj_add_flag(cont, LV_OBJ_FLAG_CLICKABLE);
-    lv_obj_set_scroll_dir(cont, LV_DIR_VER);
-    lv_obj_set_scrollbar_mode(cont, LV_SCROLLBAR_MODE_AUTO);
-
-    // Inner content grows with the fields (flex column, height = content). When it is
-    // taller than the card, the card scrolls vertically.
-    lv_obj_t *inner = lv_obj_create(cont);
-    lv_obj_set_width(inner, lv_pct(100));
-    lv_obj_set_height(inner, LV_SIZE_CONTENT);
-    lv_obj_set_style_bg_opa(inner, LV_OPA_0, LV_PART_MAIN);
-    lv_obj_set_style_border_width(inner, 0, LV_PART_MAIN);
-    lv_obj_set_style_radius(inner, 0, LV_PART_MAIN);
-    lv_obj_set_style_pad_all(inner, 24, LV_PART_MAIN);
-    lv_obj_set_style_pad_row(inner, 8, LV_PART_MAIN);
-    lv_obj_set_flex_flow(inner, LV_FLEX_FLOW_COLUMN);
-    lv_obj_set_flex_align(inner, LV_FLEX_ALIGN_START, LV_FLEX_ALIGN_START, LV_FLEX_ALIGN_START);
-    lv_obj_clear_flag(inner, LV_OBJ_FLAG_SCROLLABLE);
-
-    char path[BUFFER_SIZE_64] = {0};
-    NormalizeDisplayKeyPath(path, sizeof(path), g_callData->key_path);
-    CreateInfoRow(inner, _("App Name"), g_callData->app_name);
-    CreateInfoRow(inner, _("From"), g_callData->origin);
-    CreateInfoRow(inner, _("Network"), g_callData->network);
-    CreateInfoRow(inner, _("Path"), path);
-    if (g_address != NULL) {
-        CreateInfoRow(inner, _("Address"), g_address);
-    }
-    CreateInfoRow(inner, _("Context"), g_callData->context);
-
-    // Reuse the sign-tx "slide to confirm" component for a consistent approval UX.
-    // (Reject is handled by the nav-bar back button.)
-    GuiCreateConfirmSlider(parent, ConfirmSliderHandler);
-}
-
-static void GuiCreateQRCodeWidget(lv_obj_t *parent)
-{
-    lv_obj_t *label = GuiCreateIllustrateLabel(parent, _("connect_wallet_scan"));
-    lv_obj_align(label, LV_ALIGN_TOP_MID, 0, 152 - GUI_MAIN_AREA_OFFSET);
-    lv_obj_set_style_text_opa(label, LV_OPA_60, LV_PART_MAIN);
-
-    lv_obj_t *qrCont = GuiCreateContainerWithParent(parent, 408, 408);
-    lv_obj_add_flag(qrCont, LV_OBJ_FLAG_CLICKABLE);
-    lv_obj_align(qrCont, LV_ALIGN_TOP_MID, 0, 80);
-    lv_obj_set_style_bg_color(qrCont, DARK_BG_COLOR, LV_PART_MAIN);
-    lv_obj_set_style_radius(qrCont, 24, LV_PART_MAIN);
-
-    lv_obj_t *qrBgCont = GuiCreateContainerWithParent(qrCont, 336, 336);
-    lv_obj_align(qrBgCont, LV_ALIGN_TOP_MID, 0, 36);
-    lv_obj_set_style_bg_color(qrBgCont, WHITE_COLOR, LV_PART_MAIN);
-
-    lv_obj_t *qrcode = GuiCreateContainerWithParent(qrBgCont, 294, 294);
-    lv_obj_align(qrcode, LV_ALIGN_TOP_MID, 0, 21);
-    g_widget.qrCode = qrcode;
-
-    lv_obj_t *btn = GuiCreateTextBtn(parent, _("Done"));
-    lv_obj_align(btn, LV_ALIGN_BOTTOM_MID, 0, -24);
-    lv_obj_set_size(btn, 408, 66);
-    lv_obj_add_event_cb(btn, GoToHomeViewHandler, LV_EVENT_CLICKED, NULL);
-}
-
-static void GuiShowKeyBoardDialog(lv_obj_t *parent)
-{
-    g_keyboardWidget = GuiCreateKeyboardWidget(parent);
-    SetKeyboardWidgetSelf(g_keyboardWidget, &g_keyboardWidget);
-    static uint16_t sig = SIG_HARDWARE_CALL_DERIVE_PUBKEY;
-    SetKeyboardWidgetSig(g_keyboardWidget, &sig);
-}
-
-static void ConfirmSliderHandler(lv_event_t *e)
-{
-    if (lv_event_get_code(e) != LV_EVENT_RELEASED) {
-        return;
-    }
-    lv_obj_t *slider = lv_event_get_target(e);
-    if (lv_slider_get_value(slider) >= DCH_CONFIRM_SLIDE_PROCESS) {
-        lv_slider_set_value(slider, 0, LV_ANIM_OFF);
-        GuiShowKeyBoardDialog(g_approveTile);
-    } else {
-        lv_slider_set_value(slider, 0, LV_ANIM_ON);
-    }
-}
-
-static void CloseInvalidRequestHandler(lv_event_t *e)
-{
-    GuiCloseAttentionHintbox();
-    CloseCurrentViewHandler(e);
-}
-
-static void OnReturnHandler(lv_event_t *e)
-{
-    PrevTile();
-}
-
-static UREncodeResult *ModelGenerateSyncUR(void)
-{
-    bool enable = IsPreviousLockScreenEnable();
-    SetLockScreen(false);
-    uint8_t seed[64] = {0};
-    char *password = SecretCacheGetPassword();
-    MnemonicType mnemonicType = GetMnemonicType();
-    int seedLen = (mnemonicType == MNEMONIC_TYPE_SLIP39) ? GetCurrentAccountEntropyLen() : sizeof(seed);
-    GetAccountSeed(GetCurrentAccountIndex(), seed, password);
-    UREncodeResult *urResult = generate_derive_context_hash_ur(g_data, seed, seedLen, g_address);
-    memset(seed, 0, sizeof(seed));
-    ClearSecretCache();
-    SetLockScreen(enable);
-    return urResult;
-}
-
-void DeriveContextHashHiddenKeyboardAndShowAnimateQR(void)
-{
-    GuiDeleteKeyboardWidget(g_keyboardWidget);
-    GuiAnimatingQRCodeInit(g_widget.qrCode, ModelGenerateSyncUR, true);
-    NextTile();
-}
-
-void GuiDeriveContextHashWidgetHandleURGenerate(char *data, uint16_t len)
-{
-    GuiAnimantingQRCodeFirstUpdate(data, len);
-}
-
-void GuiDeriveContextHashWidgetHandleURGenerateFail(char *message)
-{
-    GuiPendingHintBoxRemove();
-    GuiAnimatingQRCodeDestroyTimer();
-    GuiCreateHardwareCallInvaildParamHintboxWithHandler(
-        (char *)_("Invalid Request"),
-        message != NULL ? message : (char *)_("Invalid derive-context-hash request"),
-        CloseInvalidRequestHandler);
-}
-
-void GuiDeriveContextHashWidgetHandleURUpdate(char *data, uint16_t len)
-{
-    GuiAnimatingQRCodeUpdate(data, len);
-}
-
-void GuiDeriveContextHashPasswordErrorCount(void *param)
-{
-    PasswordVerifyResult_t *passwordVerifyResult = (PasswordVerifyResult_t *)param;
-    GuiShowErrorNumber(g_keyboardWidget, passwordVerifyResult);
-}
-
-void GuiDeriveContextHashUsbPullout(void)
-{
-    // USB transport is not wired for derive-context-hash yet (QR only).
-}
-
-static void NextTile(void)
-{
-    g_widget.currentTile++;
-    if (g_widget.currentTile == TILE_QRCODE) {
-        SetNavBarLeftBtn(g_widget.pageWidget->navBarWidget, NVS_BAR_RETURN, OnReturnHandler, NULL);
-    }
-    lv_obj_set_tile_id(g_widget.tileView, g_widget.currentTile, 0, LV_ANIM_OFF);
-}
-
-static void PrevTile(void)
-{
-    g_widget.currentTile--;
-    if (g_widget.currentTile == TILE_APPROVE) {
-        SetNavBarLeftBtn(g_widget.pageWidget->navBarWidget, NVS_BAR_RETURN, CloseCurrentViewHandler, NULL);
-        GuiAnimatingQRCodeDestroyTimer();
-    }
-    lv_obj_set_tile_id(g_widget.tileView, g_widget.currentTile, 0, LV_ANIM_OFF);
-}
diff --git a/src/ui/gui_widgets/multi/gui_derive_context_hash_request_widgets.h b/src/ui/gui_widgets/multi/gui_derive_context_hash_request_widgets.h
deleted file mode 100644
index 57504a1..0000000
--- a/src/ui/gui_widgets/multi/gui_derive_context_hash_request_widgets.h
+++ /dev/null
@@ -1,19 +0,0 @@
-#ifndef _GUI_DERIVE_CONTEXT_HASH_REQUEST_WIDGETS_H_
-#define _GUI_DERIVE_CONTEXT_HASH_REQUEST_WIDGETS_H_
-
-#include "stdlib.h"
-#include "stdint.h"
-#include "stdbool.h"
-
-void GuiDeriveContextHashRequestInit(bool isUsb);
-void GuiDeriveContextHashRequestDeInit(void);
-void GuiDeriveContextHashRequestRefresh(void);
-void GuiDeriveContextHashWidgetHandleURGenerate(char *data, uint16_t len);
-void GuiDeriveContextHashWidgetHandleURGenerateFail(char *message);
-void GuiDeriveContextHashWidgetHandleURUpdate(char *data, uint16_t len);
-void GuiSetDeriveContextHashRequestData(void *urResult, void *multiResult, bool is_multi);
-void GuiDeriveContextHashPasswordErrorCount(void *param);
-void GuiDeriveContextHashUsbPullout(void);
-void DeriveContextHashHiddenKeyboardAndShowAnimateQR(void);
-
-#endif
diff --git a/src/ui/gui_widgets/multi/web3/gui_derive_context_hash_request_widgets.c b/src/ui/gui_widgets/multi/web3/gui_derive_context_hash_request_widgets.c
new file mode 100644
index 0000000..88d8d63
--- /dev/null
+++ b/src/ui/gui_widgets/multi/web3/gui_derive_context_hash_request_widgets.c
@@ -0,0 +1,398 @@
+#include "gui.h"
+#include "gui_page.h"
+#include "librust_c.h"
+#include "keystore.h"
+#include "user_memory.h"
+#include "gui_button.h"
+#include "gui_hintbox.h"
+#include "gui_obj.h"
+#include "gui_views.h"
+#include "gui_chain.h"
+#include "secret_cache.h"
+#include "account_manager.h"
+#include "account_public_info.h"
+#include "gui_keyboard_hintbox.h"
+#include "gui_lock_widgets.h"
+#include "gui_animating_qrcode.h"
+#include "gui_attention_hintbox.h"
+#include "gui_pending_hintbox.h"
+#include "gui_derive_context_hash_request_widgets.h"
+
+typedef struct {
+    uint8_t currentTile;
+    PageWidget_t *pageWidget;
+    lv_obj_t *tileView;
+    lv_obj_t *qrCode;
+} DeriveContextHashWidget_t;
+
+typedef enum {
+    TILE_APPROVE,
+    TILE_QRCODE,
+
+    TILE_BUTT,
+} PAGE_TILE;
+
+// Slider value (0-100) at which the confirm action triggers, matching the sign-tx UI.
+#define DCH_CONFIRM_SLIDE_PROCESS 66
+
+static URParseResult *g_urResult = NULL;
+static URParseMultiResult *g_urMultiResult = NULL;
+static bool g_isMulti = false;
+static void *g_data = NULL;
+static DeriveContextHashWidget_t g_widget;
+static DeriveContextHashCallData *g_callData = NULL;
+static Response_DeriveContextHashCallData *g_response = NULL;
+static char *g_address = NULL;
+static lv_obj_t *g_approveTile = NULL;
+static KeyboardWidget_t *g_keyboardWidget = NULL;
+
+static void FreeDeriveContextHashMemory(void);
+static void ModelParse(void);
+static bool DeriveConnectedAddress(void);
+static UREncodeResult *ModelGenerateSyncUR(void);
+static void GuiCreateApproveWidget(lv_obj_t *parent);
+static void GuiCreateQRCodeWidget(lv_obj_t *parent);
+static void ConfirmSliderHandler(lv_event_t *e);
+static void CloseInvalidRequestHandler(lv_event_t *e);
+static void OnReturnHandler(lv_event_t *e);
+static void NormalizeDisplayKeyPath(char *out, uint32_t outSize, const char *keyPath);
+static void GuiShowKeyBoardDialog(lv_obj_t *parent);
+static void NextTile(void);
+static void PrevTile(void);
+
+void GuiSetDeriveContextHashRequestData(void *urResult, void *multiResult, bool is_multi)
+{
+    FreeDeriveContextHashMemory();
+    g_urResult = urResult;
+    g_urMultiResult = multiResult;
+    g_isMulti = is_multi;
+    g_data = g_isMulti ? g_urMultiResult->data : g_urResult->data;
+}
+
+static void FreeDeriveContextHashMemory(void)
+{
+    CHECK_FREE_UR_RESULT(g_urResult, false);
+    CHECK_FREE_UR_RESULT(g_urMultiResult, true);
+    if (g_response != NULL) {
+        free_Response_DeriveContextHashCallData(g_response);
+        g_response = NULL;
+    }
+    if (g_address != NULL) {
+        SRAM_FREE(g_address);
+        g_address = NULL;
+    }
+}
+
+static void ModelParse(void)
+{
+    g_response = parse_derive_context_hash(g_data);
+    g_callData = g_response->data;
+}
+
+// Derive the connected key's address (seedless, from the cached account xpub) so the
+// user can confirm it on the approval screen.
+static bool DeriveConnectedAddress(void)
+{
+    if (g_callData == NULL || g_callData->key_path == NULL) {
+        return false;
+    }
+
+    const char *keyPath = g_callData->key_path;
+    if (strncmp(keyPath, "m/", 2) == 0 || strncmp(keyPath, "M/", 2) == 0) {
+        keyPath += 2;
+    }
+    int purpose = atoi(keyPath);
+    ChainType xpubType;
+    switch (purpose) {
+    case 44:
+        xpubType = XPUB_TYPE_BTC_LEGACY;
+        break;
+    case 49:
+        xpubType = XPUB_TYPE_BTC;
+        break;
+    case 84:
+        xpubType = XPUB_TYPE_BTC_NATIVE_SEGWIT;
+        break;
+    case 86:
+        xpubType = XPUB_TYPE_BTC_TAPROOT;
+        break;
+    default:
+        return false;
+    }
+    char *xpub = GetCurrentAccountPublicKey(xpubType);
+    if (xpub == NULL) {
+        return false;
+    }
+    char hdPath[BUFFER_SIZE_64] = {0};
+    NormalizeDisplayKeyPath(hdPath, sizeof(hdPath), g_callData->key_path);
+    if (hdPath[0] == '\0') {
+        return false;
+    }
+    SimpleResponse_c_char *result = btcoin_get_address_with_network(hdPath, xpub, g_callData->network);
+    if (result->error_code == 0 && result->data != NULL) {
+        g_address = SRAM_MALLOC(strnlen_s(result->data, BUFFER_SIZE_128) + 1);
+        strcpy(g_address, result->data);
+        free_simple_response_c_char(result);
+        return true;
+    }
+    free_simple_response_c_char(result);
+    return false;
+}
+
+void GuiDeriveContextHashRequestInit(bool isUsb)
+{
+    GUI_PAGE_DEL(g_widget.pageWidget);
+    g_widget.pageWidget = CreatePageWidget();
+    SetNavBarLeftBtn(g_widget.pageWidget->navBarWidget, NVS_BAR_RETURN, CloseCurrentViewHandler, NULL);
+    SetMidBtnLabel(g_widget.pageWidget->navBarWidget, NVS_BAR_MID_LABEL, _("Derive Context Hash"));
+
+    ModelParse();
+    // Rust validated the request (appName allow-list, network, context, key path).
+    // On failure `g_callData` is NULL, so show the error and skip the confirm UI
+    // instead of dereferencing it. The nav-bar back button returns to the scanner.
+    if (g_response->error_code != 0 || g_callData == NULL) {
+        char *message = g_response->error_message != NULL
+                        ? g_response->error_message
+                        : (char *)_("Invalid derive-context-hash request");
+        GuiCreateHardwareCallInvaildParamHintboxWithHandler(
+            (char *)_("Invalid Request"), message, CloseInvalidRequestHandler);
+        return;
+    }
+    if (!DeriveConnectedAddress()) {
+        GuiCreateHardwareCallInvaildParamHintboxWithHandler(
+            (char *)_("Invalid Request"), (char *)_("Invalid derive-context-hash key path"),
+            CloseInvalidRequestHandler);
+        return;
+    }
+
+    lv_obj_t *tileView = GuiCreateTileView(g_widget.pageWidget->contentZone);
+    lv_obj_t *tile = lv_tileview_add_tile(tileView, TILE_APPROVE, 0, LV_DIR_HOR);
+    GuiCreateApproveWidget(tile);
+
+    tile = lv_tileview_add_tile(tileView, TILE_QRCODE, 0, LV_DIR_HOR);
+    GuiCreateQRCodeWidget(tile);
+
+    g_widget.tileView = tileView;
+    g_widget.currentTile = TILE_APPROVE;
+    lv_obj_set_tile_id(g_widget.tileView, g_widget.currentTile, 0, LV_ANIM_OFF);
+}
+
+void GuiDeriveContextHashRequestDeInit(void)
+{
+    GuiDeleteKeyboardWidget(g_keyboardWidget);
+    GuiCloseAttentionHintbox();
+    GUI_PAGE_DEL(g_widget.pageWidget);
+    GuiAnimatingQRCodeDestroyTimer();
+    FreeDeriveContextHashMemory();
+    g_approveTile = NULL;
+    SetPageLockScreen(true);
+}
+
+void GuiDeriveContextHashRequestRefresh(void)
+{
+    GuiAnimatingQRCodeControl(false);
+}
+
+static void CreateInfoRow(lv_obj_t *parent, const char *title, const char *value)
+{
+    GuiCreateNoticeLabel(parent, title);
+    lv_obj_t *valueLabel = GuiCreateIllustrateLabel(parent, value == NULL ? "" : value);
+    lv_obj_set_width(valueLabel, lv_pct(100));
+    lv_label_set_long_mode(valueLabel, LV_LABEL_LONG_WRAP);
+}
+
+static void NormalizeDisplayKeyPath(char *out, uint32_t outSize, const char *keyPath)
+{
+    if (out == NULL || outSize == 0) {
+        return;
+    }
+    out[0] = '\0';
+    if (keyPath == NULL) {
+        return;
+    }
+    if (strncmp(keyPath, "m/", 2) == 0 || strncmp(keyPath, "M/", 2) == 0) {
+        snprintf_s(out, outSize, "%s", keyPath);
+        out[0] = 'M';
+    } else {
+        snprintf_s(out, outSize, "M/%s", keyPath);
+    }
+}
+
+static void GuiCreateApproveWidget(lv_obj_t *parent)
+{
+    g_approveTile = parent;
+    lv_obj_t *label = GuiCreateIllustrateLabel(parent, _("Derive Context Hash Request"));
+    lv_obj_align(label, LV_ALIGN_TOP_LEFT, 36, 8);
+
+    // Outer fixed-height card = the visible scroll window.
+    lv_obj_t *cont = GuiCreateContainerWithParent(parent, 408, 480);
+    lv_obj_align(cont, LV_ALIGN_TOP_MID, 0, 50);
+    lv_obj_set_style_radius(cont, 24, LV_PART_MAIN);
+    lv_obj_set_style_bg_color(cont, WHITE_COLOR, LV_PART_MAIN);
+    lv_obj_set_style_bg_opa(cont, LV_OPA_12, LV_PART_MAIN);
+    lv_obj_add_flag(cont, LV_OBJ_FLAG_SCROLLABLE);
+    lv_obj_add_flag(cont, LV_OBJ_FLAG_CLICKABLE);
+    lv_obj_set_scroll_dir(cont, LV_DIR_VER);
+    lv_obj_set_scrollbar_mode(cont, LV_SCROLLBAR_MODE_AUTO);
+
+    // Inner content grows with the fields (flex column, height = content). When it is
+    // taller than the card, the card scrolls vertically.
+    lv_obj_t *inner = lv_obj_create(cont);
+    lv_obj_set_width(inner, lv_pct(100));
+    lv_obj_set_height(inner, LV_SIZE_CONTENT);
+    lv_obj_set_style_bg_opa(inner, LV_OPA_0, LV_PART_MAIN);
+    lv_obj_set_style_border_width(inner, 0, LV_PART_MAIN);
+    lv_obj_set_style_radius(inner, 0, LV_PART_MAIN);
+    lv_obj_set_style_pad_all(inner, 24, LV_PART_MAIN);
+    lv_obj_set_style_pad_row(inner, 8, LV_PART_MAIN);
+    lv_obj_set_flex_flow(inner, LV_FLEX_FLOW_COLUMN);
+    lv_obj_set_flex_align(inner, LV_FLEX_ALIGN_START, LV_FLEX_ALIGN_START, LV_FLEX_ALIGN_START);
+    lv_obj_clear_flag(inner, LV_OBJ_FLAG_SCROLLABLE);
+
+    char path[BUFFER_SIZE_64] = {0};
+    NormalizeDisplayKeyPath(path, sizeof(path), g_callData->key_path);
+    CreateInfoRow(inner, _("App Name"), g_callData->app_name);
+    CreateInfoRow(inner, _("From"), g_callData->origin);
+    CreateInfoRow(inner, _("Network"), g_callData->network);
+    CreateInfoRow(inner, _("Path"), path);
+    if (g_address != NULL) {
+        CreateInfoRow(inner, _("Address"), g_address);
+    }
+    CreateInfoRow(inner, _("Context"), g_callData->context);
+
+    // Reuse the sign-tx "slide to confirm" component for a consistent approval UX.
+    // (Reject is handled by the nav-bar back button.)
+    GuiCreateConfirmSlider(parent, ConfirmSliderHandler);
+}
+
+static void GuiCreateQRCodeWidget(lv_obj_t *parent)
+{
+    lv_obj_t *label = GuiCreateIllustrateLabel(parent, _("connect_wallet_scan"));
+    lv_obj_align(label, LV_ALIGN_TOP_MID, 0, 152 - GUI_MAIN_AREA_OFFSET);
+    lv_obj_set_style_text_opa(label, LV_OPA_60, LV_PART_MAIN);
+
+    lv_obj_t *qrCont = GuiCreateContainerWithParent(parent, 408, 408);
+    lv_obj_add_flag(qrCont, LV_OBJ_FLAG_CLICKABLE);
+    lv_obj_align(qrCont, LV_ALIGN_TOP_MID, 0, 80);
+    lv_obj_set_style_bg_color(qrCont, DARK_BG_COLOR, LV_PART_MAIN);
+    lv_obj_set_style_radius(qrCont, 24, LV_PART_MAIN);
+
+    lv_obj_t *qrBgCont = GuiCreateContainerWithParent(qrCont, 336, 336);
+    lv_obj_align(qrBgCont, LV_ALIGN_TOP_MID, 0, 36);
+    lv_obj_set_style_bg_color(qrBgCont, WHITE_COLOR, LV_PART_MAIN);
+
+    lv_obj_t *qrcode = GuiCreateContainerWithParent(qrBgCont, 294, 294);
+    lv_obj_align(qrcode, LV_ALIGN_TOP_MID, 0, 21);
+    g_widget.qrCode = qrcode;
+
+    lv_obj_t *btn = GuiCreateTextBtn(parent, _("Done"));
+    lv_obj_align(btn, LV_ALIGN_BOTTOM_MID, 0, -24);
+    lv_obj_set_size(btn, 408, 66);
+    lv_obj_add_event_cb(btn, GoToHomeViewHandler, LV_EVENT_CLICKED, NULL);
+}
+
+static void GuiShowKeyBoardDialog(lv_obj_t *parent)
+{
+    g_keyboardWidget = GuiCreateKeyboardWidget(parent);
+    SetKeyboardWidgetSelf(g_keyboardWidget, &g_keyboardWidget);
+    static uint16_t sig = SIG_HARDWARE_CALL_DERIVE_PUBKEY;
+    SetKeyboardWidgetSig(g_keyboardWidget, &sig);
+}
+
+static void ConfirmSliderHandler(lv_event_t *e)
+{
+    if (lv_event_get_code(e) != LV_EVENT_RELEASED) {
+        return;
+    }
+    lv_obj_t *slider = lv_event_get_target(e);
+    if (lv_slider_get_value(slider) >= DCH_CONFIRM_SLIDE_PROCESS) {
+        lv_slider_set_value(slider, 0, LV_ANIM_OFF);
+        GuiShowKeyBoardDialog(g_approveTile);
+    } else {
+        lv_slider_set_value(slider, 0, LV_ANIM_ON);
+    }
+}
+
+static void CloseInvalidRequestHandler(lv_event_t *e)
+{
+    GuiCloseAttentionHintbox();
+    CloseCurrentViewHandler(e);
+}
+
+static void OnReturnHandler(lv_event_t *e)
+{
+    PrevTile();
+}
+
+static UREncodeResult *ModelGenerateSyncUR(void)
+{
+    bool enable = IsPreviousLockScreenEnable();
+    SetLockScreen(false);
+    uint8_t seed[64] = {0};
+    char *password = SecretCacheGetPassword();
+    MnemonicType mnemonicType = GetMnemonicType();
+    int seedLen = (mnemonicType == MNEMONIC_TYPE_SLIP39) ? GetCurrentAccountEntropyLen() : sizeof(seed);
+    GetAccountSeed(GetCurrentAccountIndex(), seed, password);
+    UREncodeResult *urResult = generate_derive_context_hash_ur(g_data, seed, seedLen, g_address);
+    memset(seed, 0, sizeof(seed));
+    ClearSecretCache();
+    SetLockScreen(enable);
+    return urResult;
+}
+
+void DeriveContextHashHiddenKeyboardAndShowAnimateQR(void)
+{
+    GuiDeleteKeyboardWidget(g_keyboardWidget);
+    GuiAnimatingQRCodeInit(g_widget.qrCode, ModelGenerateSyncUR, true);
+    NextTile();
+}
+
+void GuiDeriveContextHashWidgetHandleURGenerate(char *data, uint16_t len)
+{
+    GuiAnimantingQRCodeFirstUpdate(data, len);
+}
+
+void GuiDeriveContextHashWidgetHandleURGenerateFail(char *message)
+{
+    GuiPendingHintBoxRemove();
+    GuiAnimatingQRCodeDestroyTimer();
+    GuiCreateHardwareCallInvaildParamHintboxWithHandler(
+        (char *)_("Invalid Request"),
+        message != NULL ? message : (char *)_("Invalid derive-context-hash request"),
+        CloseInvalidRequestHandler);
+}
+
+void GuiDeriveContextHashWidgetHandleURUpdate(char *data, uint16_t len)
+{
+    GuiAnimatingQRCodeUpdate(data, len);
+}
+
+void GuiDeriveContextHashPasswordErrorCount(void *param)
+{
+    PasswordVerifyResult_t *passwordVerifyResult = (PasswordVerifyResult_t *)param;
+    GuiShowErrorNumber(g_keyboardWidget, passwordVerifyResult);
+}
+
+void GuiDeriveContextHashUsbPullout(void)
+{
+    // USB transport is not wired for derive-context-hash yet (QR only).
+}
+
+static void NextTile(void)
+{
+    g_widget.currentTile++;
+    if (g_widget.currentTile == TILE_QRCODE) {
+        SetNavBarLeftBtn(g_widget.pageWidget->navBarWidget, NVS_BAR_RETURN, OnReturnHandler, NULL);
+    }
+    lv_obj_set_tile_id(g_widget.tileView, g_widget.currentTile, 0, LV_ANIM_OFF);
+}
+
+static void PrevTile(void)
+{
+    g_widget.currentTile--;
+    if (g_widget.currentTile == TILE_APPROVE) {
+        SetNavBarLeftBtn(g_widget.pageWidget->navBarWidget, NVS_BAR_RETURN, CloseCurrentViewHandler, NULL);
+        GuiAnimatingQRCodeDestroyTimer();
+    }
+    lv_obj_set_tile_id(g_widget.tileView, g_widget.currentTile, 0, LV_ANIM_OFF);
+}
diff --git a/src/ui/gui_widgets/multi/web3/gui_derive_context_hash_request_widgets.h b/src/ui/gui_widgets/multi/web3/gui_derive_context_hash_request_widgets.h
new file mode 100644
index 0000000..57504a1
--- /dev/null
+++ b/src/ui/gui_widgets/multi/web3/gui_derive_context_hash_request_widgets.h
@@ -0,0 +1,19 @@
+#ifndef _GUI_DERIVE_CONTEXT_HASH_REQUEST_WIDGETS_H_
+#define _GUI_DERIVE_CONTEXT_HASH_REQUEST_WIDGETS_H_
+
+#include "stdlib.h"
+#include "stdint.h"
+#include "stdbool.h"
+
+void GuiDeriveContextHashRequestInit(bool isUsb);
+void GuiDeriveContextHashRequestDeInit(void);
+void GuiDeriveContextHashRequestRefresh(void);
+void GuiDeriveContextHashWidgetHandleURGenerate(char *data, uint16_t len);
+void GuiDeriveContextHashWidgetHandleURGenerateFail(char *message);
+void GuiDeriveContextHashWidgetHandleURUpdate(char *data, uint16_t len);
+void GuiSetDeriveContextHashRequestData(void *urResult, void *multiResult, bool is_multi);
+void GuiDeriveContextHashPasswordErrorCount(void *param);
+void GuiDeriveContextHashUsbPullout(void);
+void DeriveContextHashHiddenKeyboardAndShowAnimateQR(void);
+
+#endif