Paths: arrow the TX sweep title, drop dead path_str, hscroll the trophy browser

The sweep table title used ASCII ->, TraceResult.path_str was an unused
ASCII-arrow renderer, and the trophy browser truncated long walks at the
fold — SelectScreen's own hscroll now slides the highlighted row.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

meshterm/core/models.py

@@ -539,14 +539,6 @@ class TraceResult:
             return None
         return min(h.snr for h in self.hops)
 
-    @property
-    def path_str(self) -> str:
-        """A compact ``a -> b -> c`` rendering of the resolved path."""
-        if not self.hops:
-            return self.target
-        nodes = [h.node or f"hop{h.index}" for h in self.hops]
-        return " -> ".join(nodes)
-
     def edges(self, device_label: str = LOCAL_DEVICE_LABEL) -> list["HopEdge"]:
         """Frame the per-hop SNR as directed ``origin -> destination`` edges.
 

meshterm/ui/records_screen.py

@@ -680,6 +680,7 @@ async def open_records(ctx: "AppContext") -> dict:
             items,
             footer_hint="↑↓ move · Enter open · Esc back",
             wrap=False,
+            hscroll=True,  # a long walk's row slides under ←→ instead of dying at the fold
         )
         picked = await session.run_screen(browser)
         if picked is CANCEL or picked is None or picked[0] == "back":

meshterm/ui/widgets.py

@@ -1091,7 +1091,7 @@ def tx_opt_table(result: TxOptResult) -> Table:
         A Rich :class:`Table` of TX level, target SNR, success rate, and sample count.
     """
     table = Table(
-        title=f"TX sweep · {result.admin_node} -> {result.target}",
+        title=f"TX sweep · {result.admin_node} → {result.target}",
         border_style="muted",
         expand=False,
     )