fix(core): combine path/account with labels

### core/embed/rust/librust_qstr.h
@@ -99,7 +99,6 @@ static void _librust_qstrs(void) {
   MP_QSTR_about_items;
   MP_QSTR_account;
   MP_QSTR_account_items;
-  MP_QSTR_account_label;
   MP_QSTR_account_title;
   MP_QSTR_accounts;
   MP_QSTR_action;
@@ -565,7 +564,6 @@ static void _librust_qstrs(void) {
   MP_QSTR_passphrase__turn_on;
   MP_QSTR_passphrase__wallet;
   MP_QSTR_path;
-  MP_QSTR_path_label;
   MP_QSTR_peer_count;
   MP_QSTR_pin__cancel_description;
   MP_QSTR_pin__cancel_info;

### core/embed/rust/src/ui/api/firmware_micropython.rs
@@ -793,20 +793,24 @@ extern "C" fn new_show_address_details(n_args: usize, args: *const Obj, kwargs:
         let details_title: TString = kwargs.get(Qstr::MP_QSTR_details_title)?.try_into()?;
         let address: TString = kwargs.get(Qstr::MP_QSTR_address)?.try_into()?;
         let case_sensitive: bool = kwargs.get(Qstr::MP_QSTR_case_sensitive)?.try_into()?;
-        let account_label: TString = kwargs.get(Qstr::MP_QSTR_account_label)?.try_into()?;
-        let account: Option<TString> = kwargs.get(Qstr::MP_QSTR_account)?.try_into_option()?;
-        let path_label: TString = kwargs.get(Qstr::MP_QSTR_path_label)?.try_into()?;
-        let path: Option<TString> = kwargs.get(Qstr::MP_QSTR_path)?.try_into_option()?;
+        let labeled = |obj: Obj| -> Result<Option<(TString, TString)>, Error> {
+            if obj == Obj::const_none() {
+                Ok(None)
+            } else {
+                let [label, content]: [Obj; 2] = util::iter_into_array(obj)?;
+                Ok(Some((label.try_into()?, content.try_into()?)))
+            }
+        };
+        let account = labeled(kwargs.get(Qstr::MP_QSTR_account)?)?;
+        let path = labeled(kwargs.get(Qstr::MP_QSTR_path)?)?;
         let xpubs: Obj = kwargs.get(Qstr::MP_QSTR_xpubs)?;
 
         let layout = ModelUI::show_address_details(
             qr_title,
             address,
             case_sensitive,
             details_title,
-            account_label,
             account,
-            path_label,
             path,
             xpubs,
         )?;
@@ -1854,10 +1858,8 @@ pub static mp_module_trezorui_api: Module = obj_module! {
     ///     address: str,
     ///     case_sensitive: bool,
     ///     details_title: str,
-    ///     account_label: str,
-    ///     account: str | None,
-    ///     path_label: str,
-    ///     path: str | None,
+    ///     account: tuple[str, str] | None,
+    ///     path: tuple[str, str] | None,
     ///     xpubs: Sequence[tuple[str, str]],
     /// ) -> LayoutContext[UiResult]:
     ///     """Show address details - QR code, account, path, cosigner xpubs."""

### core/embed/rust/src/ui/layout_bolt/component/address_details.rs
@@ -28,18 +28,16 @@ impl AddressDetails {
         qr_address: TString<'static>,
         case_sensitive: bool,
         details_title: TString<'static>,
-        account_label: TString<'static>,
-        account: Option<TString<'static>>,
-        path_label: TString<'static>,
-        path: Option<TString<'static>>,
+        account: Option<(TString<'static>, TString<'static>)>,
+        path: Option<(TString<'static>, TString<'static>)>,
     ) -> Result<Self, Error> {
         let mut para = ParagraphVecShort::new();
-        if let Some(account) = account {
-            para.add(Paragraph::new(&theme::TEXT_NORMAL, account_label));
+        if let Some((label, account)) = account {
+            para.add(Paragraph::new(&theme::TEXT_NORMAL, label));
             para.add(Paragraph::new(&theme::TEXT_MONO_DATA, account));
         }
-        if let Some(path) = path {
-            para.add(Paragraph::new(&theme::TEXT_NORMAL, path_label));
+        if let Some((label, path)) = path {
+            para.add(Paragraph::new(&theme::TEXT_NORMAL, label));
             para.add(Paragraph::new(&theme::TEXT_MONO_DATA, path));
         }
         let result = Self {

### core/embed/rust/src/ui/layout_bolt/ui_firmware.rs
@@ -790,20 +790,16 @@ impl FirmwareUI for UIBolt {
         address: TString<'static>,
         case_sensitive: bool,
         details_title: TString<'static>,
-        account_label: TString<'static>,
-        account: Option<TString<'static>>,
-        path_label: TString<'static>,
-        path: Option<TString<'static>>,
+        account: Option<(TString<'static>, TString<'static>)>,
+        path: Option<(TString<'static>, TString<'static>)>,
         xpubs: Obj,
     ) -> Result<impl LayoutMaybeTrace, Error> {
         let mut ad = AddressDetails::new(
             qr_title,
             address,
             case_sensitive,
             details_title,
-            account_label,
             account,
-            path_label,
             path,
         )?;
 

### core/embed/rust/src/ui/layout_caesar/component/address_details.rs
@@ -33,22 +33,20 @@ impl AddressDetails {
     pub fn new(
         qr_address: TString<'static>,
         case_sensitive: bool,
-        account_label: TString<'static>,
-        account: Option<TString<'static>>,
-        path_label: TString<'static>,
-        path: Option<TString<'static>>,
+        account: Option<(TString<'static>, TString<'static>)>,
+        path: Option<(TString<'static>, TString<'static>)>,
     ) -> Result<Self, Error> {
         let qr_code = qr_address
             .map(|s| Qr::new(s, case_sensitive))?
             .with_border(QR_BORDER);
         let details_view = {
             let mut para = ParagraphVecShort::new();
-            if let Some(account) = account {
-                para.add(Paragraph::new(&theme::TEXT_BOLD, account_label));
+            if let Some((label, account)) = account {
+                para.add(Paragraph::new(&theme::TEXT_BOLD, label));
                 para.add(Paragraph::new(&theme::TEXT_MONO, account));
             }
-            if let Some(path) = path {
-                para.add(Paragraph::new(&theme::TEXT_BOLD, path_label));
+            if let Some((label, path)) = path {
+                para.add(Paragraph::new(&theme::TEXT_BOLD, label));
                 para.add(Paragraph::new(&theme::TEXT_MONO, path));
             }
             Paragraphs::new(para)

### core/embed/rust/src/ui/layout_caesar/ui_firmware.rs
@@ -983,20 +983,11 @@ impl FirmwareUI for UICaesar {
         address: TString<'static>,
         case_sensitive: bool,
         _details_title: TString<'static>,
-        account_label: TString<'static>,
-        account: Option<TString<'static>>,
-        path_label: TString<'static>,
-        path: Option<TString<'static>>,
+        account: Option<(TString<'static>, TString<'static>)>,
+        path: Option<(TString<'static>, TString<'static>)>,
         xpubs: Obj,
     ) -> Result<impl LayoutMaybeTrace, Error> {
-        let mut ad = AddressDetails::new(
-            address,
-            case_sensitive,
-            account_label,
-            account,
-            path_label,
-            path,
-        )?;
+        let mut ad = AddressDetails::new(address, case_sensitive, account, path)?;
 
         for i in IterBuf::new().try_iterate(xpubs)? {
             let [xtitle, text]: [StrBuffer; 2] = util::iter_into_array(i)?;

### core/embed/rust/src/ui/layout_delizia/ui_firmware.rs
@@ -789,10 +789,8 @@ impl FirmwareUI for UIDelizia {
         _address: TString<'static>,
         _case_sensitive: bool,
         _details_title: TString<'static>,
-        _account_label: TString<'static>,
-        _account: Option<TString<'static>>,
-        _path_label: TString<'static>,
-        _path: Option<TString<'static>>,
+        _account: Option<(TString<'static>, TString<'static>)>,
+        _path: Option<(TString<'static>, TString<'static>)>,
         _xpubs: Obj,
     ) -> Result<impl LayoutMaybeTrace, Error> {
         Err::<RootComponent<Empty, ModelUI>, Error>(Error::NotImplementedError)

### core/embed/rust/src/ui/layout_eckhart/ui_firmware.rs
@@ -957,10 +957,8 @@ impl FirmwareUI for UIEckhart {
         _address: TString<'static>,
         _case_sensitive: bool,
         _details_title: TString<'static>,
-        _account_label: TString<'static>,
-        _account: Option<TString<'static>>,
-        _path_label: TString<'static>,
-        _path: Option<TString<'static>>,
+        _account: Option<(TString<'static>, TString<'static>)>,
+        _path: Option<(TString<'static>, TString<'static>)>,
         _xpubs: Obj,
     ) -> Result<impl LayoutMaybeTrace, Error> {
         Err::<RootComponent<Empty, ModelUI>, Error>(Error::NotImplementedError)

### core/embed/rust/src/ui/ui_firmware.rs
@@ -409,10 +409,8 @@ pub trait FirmwareUI {
         address: TString<'static>,
         case_sensitive: bool,
         details_title: TString<'static>,
-        account_label: TString<'static>,
-        account: Option<TString<'static>>,
-        path_label: TString<'static>,
-        path: Option<TString<'static>>,
+        account: Option<(TString<'static>, TString<'static>)>,
+        path: Option<(TString<'static>, TString<'static>)>,
         xpubs: Obj, // TODO: replace Obj
     ) -> Result<impl LayoutMaybeTrace, Error>;
 

### core/mocks/generated/trezorui_api.pyi
@@ -580,10 +580,8 @@ def show_address_details(
     address: str,
     case_sensitive: bool,
     details_title: str,
-    account_label: str,
-    account: str | None,
-    path_label: str,
-    path: str | None,
+    account: tuple[str, str] | None,
+    path: tuple[str, str] | None,
     xpubs: Sequence[tuple[str, str]],
 ) -> LayoutContext[UiResult]:
     """Show address details - QR code, account, path, cosigner xpubs."""

### core/src/trezor/ui/layouts/bolt/__init__.py
@@ -368,10 +368,12 @@ def xpub_title(i: int) -> str:
                 address=address if address_qr is None else address_qr,
                 case_sensitive=case_sensitive,
                 details_title=details_title,
-                account_label=with_colon(TR.words__account),
-                account=account,
-                path_label=with_colon(TR.address_details__derivation_path),
-                path=path,
+                account=(with_colon(TR.words__account), account) if account else None,
+                path=(
+                    (with_colon(TR.address_details__derivation_path), path)
+                    if path
+                    else None
+                ),
                 xpubs=[(xpub_title(i), xpub) for i, xpub in enumerate(xpubs)],
             ) as layout:
                 result = await interact(layout, None, raise_on_cancel=None)

### core/src/trezor/ui/layouts/caesar/__init__.py
@@ -376,10 +376,12 @@ def xpub_title(i: int) -> str:
                 address=address if address_qr is None else address_qr,
                 case_sensitive=case_sensitive,
                 details_title="",  # unused on this model
-                account_label=with_colon(TR.words__account),
-                account=account,
-                path_label=with_colon(TR.address_details__derivation_path),
-                path=path,
+                account=(with_colon(TR.words__account), account) if account else None,
+                path=(
+                    (with_colon(TR.address_details__derivation_path), path)
+                    if path
+                    else None
+                ),
                 xpubs=[(xpub_title(i), xpub) for i, xpub in enumerate(xpubs)],
             ) as layout:
                 result = await interact(layout, None, raise_on_cancel=None)

### core/src/trezor/wire/thp/ui.py
@@ -110,10 +110,8 @@ async def show_qr_code_screen(qr_code_str: str) -> UiResult:
         address=qr_code_str,
         case_sensitive=True,
         details_title="",
-        account_label="",
-        account="",
-        path_label="",
-        path="",
+        account=None,
+        path=None,
         xpubs=[],
     ) as layout:
         return await interact(layout, br_name=None)