feat(ui,api,telegram): shared conversation panel for obsidian and /admin/panel, bind materializes a window, inbox survives link previews

ui/src/lib/panel/composer.svelte

@@ -111,7 +111,7 @@
         {/each}
       </Select.Content>
     </Select.Root>
-    <span class="hidden text-muted-foreground text-xs sm:inline"
+    <span class="hidden text-muted-foreground text-xs @md:inline"
       >{current.hint}</span
     >
     <Button
@@ -122,7 +122,7 @@
     >
       <SendHorizontalIcon class="size-4" />
       Send
-      <kbd class="hidden text-[10px] opacity-70 sm:inline">⌘↩</kbd>
+      <kbd class="hidden text-[10px] opacity-70 @md:inline">⌘↩</kbd>
     </Button>
   </div>
 </form>