feat(chat): adjust chat layout and add rewind/fork functionality

- Modify chat max/min width for better responsiveness
- Update UserMessage and AssistantMessage components for improved alignment
- Add rewind and fork functionality to AssistantMessage
- Refactor Artifact component to handle bundled artifacts more clearly

app/components/chat/Artifact.tsx

@@ -63,68 +63,74 @@ export const Artifact = memo(({ messageId }: ArtifactProps) => {
   }, [actions]);
 
   return (
-    <div className="artifact border border-bolt-elements-borderColor flex flex-col overflow-hidden rounded-lg w-full transition-border duration-150">
-      <div className="flex">
-        <button
-          className="flex items-stretch bg-bolt-elements-artifacts-background hover:bg-bolt-elements-artifacts-backgroundHover w-full overflow-hidden"
-          onClick={() => {
-            const showWorkbench = workbenchStore.showWorkbench.get();
-            workbenchStore.showWorkbench.set(!showWorkbench);
-          }}
-        >
-          {artifact.type == 'bundled' && (
-            <>
-              <div className="p-4">
-                {allActionFinished ? (
-                  <div className={'i-ph:files-light'} style={{ fontSize: '2rem' }}></div>
-                ) : (
-                  <div className={'i-svg-spinners:90-ring-with-bg'} style={{ fontSize: '2rem' }}></div>
-                )}
+    <>
+      <div className="artifact border border-bolt-elements-borderColor flex flex-col overflow-hidden rounded-lg w-full transition-border duration-150">
+        <div className="flex">
+          <button
+            className="flex items-stretch bg-bolt-elements-artifacts-background hover:bg-bolt-elements-artifacts-backgroundHover w-full overflow-hidden"
+            onClick={() => {
+              const showWorkbench = workbenchStore.showWorkbench.get();
+              workbenchStore.showWorkbench.set(!showWorkbench);
+            }}
+          >
+            <div className="px-5 p-3.5 w-full text-left">
+              <div className="w-full text-bolt-elements-textPrimary font-medium leading-5 text-sm">
+                {artifact.type === 'bundled' ? 'Setup Project' : artifact?.title}
               </div>
-              <div className="bg-bolt-elements-artifacts-borderColor w-[1px]" />
-            </>
-          )}
-          <div className="px-5 p-3.5 w-full text-left">
-            <div className="w-full text-bolt-elements-textPrimary font-medium leading-5 text-sm">{artifact?.title}</div>
-            <div className="w-full w-full text-bolt-elements-textSecondary text-xs mt-0.5">Click to open Workbench</div>
+              <div className="w-full w-full text-bolt-elements-textSecondary text-xs mt-0.5">
+                Click to open Workbench
+              </div>
+            </div>
+          </button>
+          {artifact.type !== 'bundled' && <div className="bg-bolt-elements-artifacts-borderColor w-[1px]" />}
+          <AnimatePresence>
+            {actions.length && artifact.type !== 'bundled' && (
+              <motion.button
+                initial={{ width: 0 }}
+                animate={{ width: 'auto' }}
+                exit={{ width: 0 }}
+                transition={{ duration: 0.15, ease: cubicEasingFn }}
+                className="bg-bolt-elements-artifacts-background hover:bg-bolt-elements-artifacts-backgroundHover"
+                onClick={toggleActions}
+              >
+                <div className="p-4">
+                  <div className={showActions ? 'i-ph:caret-up-bold' : 'i-ph:caret-down-bold'}></div>
+                </div>
+              </motion.button>
+            )}
+          </AnimatePresence>
+        </div>
+        {artifact.type === 'bundled' && (
+          <div className="flex items-center gap-1.5 p-5 bg-bolt-elements-actions-background border-t border-bolt-elements-artifacts-borderColor">
+            <div className={classNames('text-lg', getIconColor(allActionFinished ? 'complete' : 'running'))}>
+              {allActionFinished ? (
+                <div className="i-ph:check"></div>
+              ) : (
+                <div className="i-svg-spinners:90-ring-with-bg"></div>
+              )}
+            </div>
+            <div className="text-bolt-elements-textPrimary font-medium leading-5 text-sm">Create initial files</div>
           </div>
-        </button>
-        <div className="bg-bolt-elements-artifacts-borderColor w-[1px]" />
+        )}
         <AnimatePresence>
-          {actions.length && artifact.type !== 'bundled' && (
-            <motion.button
-              initial={{ width: 0 }}
-              animate={{ width: 'auto' }}
-              exit={{ width: 0 }}
-              transition={{ duration: 0.15, ease: cubicEasingFn }}
-              className="bg-bolt-elements-artifacts-background hover:bg-bolt-elements-artifacts-backgroundHover"
-              onClick={toggleActions}
+          {artifact.type !== 'bundled' && showActions && actions.length > 0 && (
+            <motion.div
+              className="actions"
+              initial={{ height: 0 }}
+              animate={{ height: 'auto' }}
+              exit={{ height: '0px' }}
+              transition={{ duration: 0.15 }}
             >
-              <div className="p-4">
-                <div className={showActions ? 'i-ph:caret-up-bold' : 'i-ph:caret-down-bold'}></div>
+              <div className="bg-bolt-elements-artifacts-borderColor h-[1px]" />
+
+              <div className="p-5 text-left bg-bolt-elements-actions-background">
+                <ActionList actions={actions} />
               </div>
-            </motion.button>
+            </motion.div>
           )}
         </AnimatePresence>
       </div>
-      <AnimatePresence>
-        {artifact.type !== 'bundled' && showActions && actions.length > 0 && (
-          <motion.div
-            className="actions"
-            initial={{ height: 0 }}
-            animate={{ height: 'auto' }}
-            exit={{ height: '0px' }}
-            transition={{ duration: 0.15 }}
-          >
-            <div className="bg-bolt-elements-artifacts-borderColor h-[1px]" />
-
-            <div className="p-5 text-left bg-bolt-elements-actions-background">
-              <ActionList actions={actions} />
-            </div>
-          </motion.div>
-        )}
-      </AnimatePresence>
-    </div>
+    </>
   );
 });
 

app/components/chat/AssistantMessage.tsx

@@ -4,10 +4,14 @@ import type { JSONValue } from 'ai';
 import Popover from '~/components/ui/Popover';
 import { workbenchStore } from '~/lib/stores/workbench';
 import { WORK_DIR } from '~/utils/constants';
+import WithTooltip from '~/components/ui/Tooltip';
 
 interface AssistantMessageProps {
   content: string;
   annotations?: JSONValue[];
+  messageId?: string;
+  onRewind?: (messageId: string) => void;
+  onFork?: (messageId: string) => void;
 }
 
 function openArtifactInWorkbench(filePath: string) {
@@ -34,7 +38,7 @@ function normalizedFilePath(path: string) {
   return normalizedPath;
 }
 
-export const AssistantMessage = memo(({ content, annotations }: AssistantMessageProps) => {
+export const AssistantMessage = memo(({ content, annotations, messageId, onRewind, onFork }: AssistantMessageProps) => {
   const filteredAnnotations = (annotations?.filter(
     (annotation: JSONValue) => annotation && typeof annotation === 'object' && Object.keys(annotation).includes('type'),
   ) || []) as { type: string; value: any } & { [key: string]: any }[];
@@ -100,11 +104,35 @@ export const AssistantMessage = memo(({ content, annotations }: AssistantMessage
               <div className="context"></div>
             </Popover>
           )}
-          {usage && (
-            <div>
-              Tokens: {usage.totalTokens} (prompt: {usage.promptTokens}, completion: {usage.completionTokens})
-            </div>
-          )}
+          <div className="flex w-full items-center justify-between mb-2">
+            {usage && (
+              <div>
+                Tokens: {usage.totalTokens} (prompt: {usage.promptTokens}, completion: {usage.completionTokens})
+              </div>
+            )}
+            {(onRewind || onFork) && messageId && (
+              <div className="flex gap-2 flex-col lg:flex-row ml-auto">
+                {onRewind && (
+                  <WithTooltip tooltip="Revert to this message">
+                    <button
+                      onClick={() => onRewind(messageId)}
+                      key="i-ph:arrow-u-up-left"
+                      className="i-ph:arrow-u-up-left text-xl text-bolt-elements-textSecondary hover:text-bolt-elements-textPrimary transition-colors"
+                    />
+                  </WithTooltip>
+                )}
+                {onFork && (
+                  <WithTooltip tooltip="Fork chat from this message">
+                    <button
+                      onClick={() => onFork(messageId)}
+                      key="i-ph:git-fork"
+                      className="i-ph:git-fork text-xl text-bolt-elements-textSecondary hover:text-bolt-elements-textPrimary transition-colors"
+                    />
+                  </WithTooltip>
+                )}
+              </div>
+            )}
+          </div>
         </div>
       </>
       <Markdown html>{content}</Markdown>

app/components/chat/Messages.client.tsx

@@ -7,7 +7,6 @@ import { useLocation } from '@remix-run/react';
 import { db, chatId } from '~/lib/persistence/useChatHistory';
 import { forkChat } from '~/lib/persistence/db';
 import { toast } from 'react-toastify';
-import WithTooltip from '~/components/ui/Tooltip';
 import { useStore } from '@nanostores/react';
 import { profileStore } from '~/lib/stores/profile';
 import { forwardRef } from 'react';
@@ -63,7 +62,7 @@ export const Messages = forwardRef<HTMLDivElement, MessagesProps>(
               return (
                 <div
                   key={index}
-                  className={classNames('flex gap-4 p-6 w-full rounded-[calc(0.75rem-1px)]', {
+                  className={classNames('flex gap-4 p-6 py-5 w-full rounded-[calc(0.75rem-1px)]', {
                     'bg-bolt-elements-messages-background': isUserMessage || !isStreaming || (isStreaming && !isLast),
                     'bg-gradient-to-b from-bolt-elements-messages-background from-30% to-transparent':
                       isStreaming && isLast,
@@ -89,36 +88,15 @@ export const Messages = forwardRef<HTMLDivElement, MessagesProps>(
                     {isUserMessage ? (
                       <UserMessage content={content} />
                     ) : (
-                      <AssistantMessage content={content} annotations={message.annotations} />
+                      <AssistantMessage
+                        content={content}
+                        annotations={message.annotations}
+                        messageId={messageId}
+                        onRewind={handleRewind}
+                        onFork={handleFork}
+                      />
                     )}
                   </div>
-                  {!isUserMessage && (
-                    <div className="flex gap-2 flex-col lg:flex-row">
-                      {messageId && (
-                        <WithTooltip tooltip="Revert to this message">
-                          <button
-                            onClick={() => handleRewind(messageId)}
-                            key="i-ph:arrow-u-up-left"
-                            className={classNames(
-                              'i-ph:arrow-u-up-left',
-                              'text-xl text-bolt-elements-textSecondary hover:text-bolt-elements-textPrimary transition-colors',
-                            )}
-                          />
-                        </WithTooltip>
-                      )}
-
-                      <WithTooltip tooltip="Fork chat from this message">
-                        <button
-                          onClick={() => handleFork(messageId)}
-                          key="i-ph:git-fork"
-                          className={classNames(
-                            'i-ph:git-fork',
-                            'text-xl text-bolt-elements-textSecondary hover:text-bolt-elements-textPrimary transition-colors',
-                          )}
-                        />
-                      </WithTooltip>
-                    </div>
-                  )}
                 </div>
               );
             })

app/components/chat/UserMessage.tsx

@@ -16,7 +16,7 @@ export function UserMessage({ content }: UserMessageProps) {
     const images = content.filter((item) => item.type === 'image' && item.image);
 
     return (
-      <div className="overflow-hidden pt-[4px]">
+      <div className="overflow-hidden flex items-center">
         <div className="flex flex-col gap-4">
           {textContent && <Markdown html>{textContent}</Markdown>}
           {images.map((item, index) => (

app/styles/variables.scss

@@ -217,8 +217,8 @@
  */
 :root {
   --header-height: 54px;
-  --chat-max-width: 37rem;
-  --chat-min-width: 640px;
+  --chat-max-width: 35rem;
+  --chat-min-width: 575px;
   --workbench-width: min(calc(100% - var(--chat-min-width)), 2536px);
   --workbench-inner-width: var(--workbench-width);
   --workbench-left: calc(100% - var(--workbench-width));