feat: auto-refresh FileNav on write_file, replace_file_content, and run_command

Backend emits terminal events for write_file, replace_file_content,
and run_command. Frontend showFileNavDir subscriber uses startsWith
path matching to smartly refresh only when the event is relevant:
- write_file/replace_file_content: refresh if path is in current view
- run_command: always refresh (uses root '/' which matches everything)
- Also adds copy-to-clipboard button and code preview full-height fix

backend/open_webui/utils/middleware.py

@@ -1053,16 +1053,16 @@ async def terminal_event_handler(
     """Emit terminal:* events for Open Terminal tools.
 
     - display_file  → emits 'terminal:display_file' to open the file preview.
-    - write_file → emits 'terminal:write_file' to silently refresh the file browser.
+    - write_file / replace_file_content → emits 'terminal:write_file' to refresh.
+    - run_command → emits 'terminal:run_command' with cwd to refresh if relevant.
     """
     if not event_emitter:
         return
 
-    path = tool_function_params.get("path", "")
-    if not path:
-        return
-
     if tool_function_name == "display_file":
+        path = tool_function_params.get("path", "")
+        if not path:
+            return
         # Only emit if the file actually exists
         parsed = tool_result
         if isinstance(parsed, str):
@@ -1079,13 +1079,23 @@ async def terminal_event_handler(
                 "data": {"path": path},
             }
         )
-    elif tool_function_name == "write_file":
+    elif tool_function_name in ("write_file", "replace_file_content"):
+        path = tool_function_params.get("path", "")
+        if not path:
+            return
         await event_emitter(
             {
                 "type": f"terminal:{tool_function_name}",
                 "data": {"path": path},
             }
         )
+    elif tool_function_name == "run_command":
+        await event_emitter(
+            {
+                "type": "terminal:run_command",
+                "data": {},
+            }
+        )
 
 
 async def chat_completion_tools_handler(

src/lib/components/chat/Chat.svelte

@@ -406,11 +406,14 @@
 	};
 
 	const terminalEventHandler = (type: string, data: any) => {
-		if (!data?.path) return;
 		if (type === 'terminal:display_file') {
+			if (!data?.path) return;
 			displayFileHandler(data.path, { showControls, showFileNavPath });
-		} else if (type === 'terminal:write_file') {
+		} else if (type === 'terminal:write_file' || type === 'terminal:replace_file_content') {
+			if (!data?.path) return;
 			showFileNavDir.set(data.path);
+		} else if (type === 'terminal:run_command') {
+			showFileNavDir.set('/');
 		}
 	};
 

src/lib/components/chat/FileNav.svelte

@@ -511,13 +511,15 @@
 			const lastSlash = filePath.lastIndexOf('/');
 			const dir = lastSlash > 0 ? filePath.substring(0, lastSlash + 1) : '/';
 
-			if (dir === currentPath) {
-				await loadDir(currentPath);
-			}
-			if (filePath === selectedFile) {
-				const fileName = filePath.substring(lastSlash + 1);
-				const entry = entries.find((e) => e.name === fileName);
-				if (entry) await openEntry(entry);
+			if (selectedFile) {
+				if (selectedFile === filePath || currentPath.startsWith(dir)) {
+					const fileName = selectedFile.split('/').pop() ?? '';
+					await openEntry({ name: fileName, type: 'file', size: 0 });
+				}
+			} else {
+				if (currentPath.startsWith(dir) || dir.startsWith(currentPath)) {
+					await loadDir(currentPath);
+				}
 			}
 		});
 
@@ -549,6 +551,8 @@
 		document.addEventListener('visibilitychange', onVisibilityChange);
 
 		return () => {
+			unsubFileNav();
+			unsubFileNavDir();
 			window.removeEventListener('keydown', onKeyDown);
 			window.removeEventListener('keyup', onKeyUp);
 			window.removeEventListener('blur', onBlur);