diff --git a/webui/bun.lock b/webui/bun.lock
index a539068bf..c36c6bfea 100644
--- a/webui/bun.lock
+++ b/webui/bun.lock
@@ -6,10 +6,8 @@
       "name": "nanobot-webui",
       "dependencies": {
         "@radix-ui/react-alert-dialog": "^1.1.4",
-        "@radix-ui/react-avatar": "^1.1.2",
         "@radix-ui/react-dialog": "^1.1.4",
         "@radix-ui/react-dropdown-menu": "^2.1.4",
-        "@radix-ui/react-scroll-area": "^1.2.2",
         "@radix-ui/react-separator": "^1.1.1",
         "@radix-ui/react-slot": "^1.1.1",
         "@radix-ui/react-tooltip": "^1.1.6",
@@ -165,16 +163,12 @@
 
     "@nodelib/fs.walk": ["@nodelib/fs.walk@1.2.8", "", { "dependencies": { "@nodelib/fs.scandir": "2.1.5", "fastq": "^1.6.0" } }, "sha512-oGB+UxlgWcgQkgwo8GcEGwemoTFt3FIO9ababBmaGwXIoBKZ+GTy0pP185beGg7Llih/NSHSV2XAs1lnznocSg=="],
 
-    "@radix-ui/number": ["@radix-ui/number@1.1.1", "", {}, "sha512-MkKCwxlXTgz6CFoJx3pCwn07GKp36+aZyu/u2Ln2VrA5DcdyCZkASEDBTd8x5whTQQL5CiYf4prXKLcgQdv29g=="],
-
     "@radix-ui/primitive": ["@radix-ui/primitive@1.1.3", "", {}, "sha512-JTF99U/6XIjCBo0wqkU5sK10glYe27MRRsfwoiq5zzOEZLHU3A3KCMa5X/azekYRCJ0HlwI0crAXS/5dEHTzDg=="],
 
     "@radix-ui/react-alert-dialog": ["@radix-ui/react-alert-dialog@1.1.15", "", { "dependencies": { "@radix-ui/primitive": "1.1.3", "@radix-ui/react-compose-refs": "1.1.2", "@radix-ui/react-context": "1.1.2", "@radix-ui/react-dialog": "1.1.15", "@radix-ui/react-primitive": "2.1.3", "@radix-ui/react-slot": "1.2.3" }, "peerDependencies": { "@types/react": "*", "@types/react-dom": "*", "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc", "react-dom": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc" }, "optionalPeers": ["@types/react", "@types/react-dom"] }, "sha512-oTVLkEw5GpdRe29BqJ0LSDFWI3qu0vR1M0mUkOQWDIUnY/QIkLpgDMWuKxP94c2NAC2LGcgVhG1ImF3jkZ5wXw=="],
 
     "@radix-ui/react-arrow": ["@radix-ui/react-arrow@1.1.7", "", { "dependencies": { "@radix-ui/react-primitive": "2.1.3" }, "peerDependencies": { "@types/react": "*", "@types/react-dom": "*", "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc", "react-dom": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc" }, "optionalPeers": ["@types/react", "@types/react-dom"] }, "sha512-F+M1tLhO+mlQaOWspE8Wstg+z6PwxwRd8oQ8IXceWz92kfAmalTRf0EjrouQeo7QssEPfCn05B4Ihs1K9WQ/7w=="],
 
-    "@radix-ui/react-avatar": ["@radix-ui/react-avatar@1.1.11", "", { "dependencies": { "@radix-ui/react-context": "1.1.3", "@radix-ui/react-primitive": "2.1.4", "@radix-ui/react-use-callback-ref": "1.1.1", "@radix-ui/react-use-is-hydrated": "0.1.0", "@radix-ui/react-use-layout-effect": "1.1.1" }, "peerDependencies": { "@types/react": "*", "@types/react-dom": "*", "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc", "react-dom": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc" }, "optionalPeers": ["@types/react", "@types/react-dom"] }, "sha512-0Qk603AHGV28BOBO34p7IgD5m+V5Sg/YovfayABkoDDBM5d3NCx0Mp4gGrjzLGes1jV5eNOE1r3itqOR33VC6Q=="],
-
     "@radix-ui/react-collection": ["@radix-ui/react-collection@1.1.7", "", { "dependencies": { "@radix-ui/react-compose-refs": "1.1.2", "@radix-ui/react-context": "1.1.2", "@radix-ui/react-primitive": "2.1.3", "@radix-ui/react-slot": "1.2.3" }, "peerDependencies": { "@types/react": "*", "@types/react-dom": "*", "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc", "react-dom": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc" }, "optionalPeers": ["@types/react", "@types/react-dom"] }, "sha512-Fh9rGN0MoI4ZFUNyfFVNU4y9LUz93u9/0K+yLgA2bwRojxM8JU1DyvvMBabnZPBgMWREAJvU2jjVzq+LrFUglw=="],
 
     "@radix-ui/react-compose-refs": ["@radix-ui/react-compose-refs@1.1.2", "", { "peerDependencies": { "@types/react": "*", "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc" }, "optionalPeers": ["@types/react"] }, "sha512-z4eqJvfiNnFMHIIvXP3CY57y2WJs5g2v3X0zm9mEJkrkNv4rDxu+sg9Jh8EkXyeqBkB7SOcboo9dMVqhyrACIg=="],
@@ -207,8 +201,6 @@
 
     "@radix-ui/react-roving-focus": ["@radix-ui/react-roving-focus@1.1.11", "", { "dependencies": { "@radix-ui/primitive": "1.1.3", "@radix-ui/react-collection": "1.1.7", "@radix-ui/react-compose-refs": "1.1.2", "@radix-ui/react-context": "1.1.2", "@radix-ui/react-direction": "1.1.1", "@radix-ui/react-id": "1.1.1", "@radix-ui/react-primitive": "2.1.3", "@radix-ui/react-use-callback-ref": "1.1.1", "@radix-ui/react-use-controllable-state": "1.2.2" }, "peerDependencies": { "@types/react": "*", "@types/react-dom": "*", "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc", "react-dom": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc" }, "optionalPeers": ["@types/react", "@types/react-dom"] }, "sha512-7A6S9jSgm/S+7MdtNDSb+IU859vQqJ/QAtcYQcfFC6W8RS4IxIZDldLR0xqCFZ6DCyrQLjLPsxtTNch5jVA4lA=="],
 
-    "@radix-ui/react-scroll-area": ["@radix-ui/react-scroll-area@1.2.10", "", { "dependencies": { "@radix-ui/number": "1.1.1", "@radix-ui/primitive": "1.1.3", "@radix-ui/react-compose-refs": "1.1.2", "@radix-ui/react-context": "1.1.2", "@radix-ui/react-direction": "1.1.1", "@radix-ui/react-presence": "1.1.5", "@radix-ui/react-primitive": "2.1.3", "@radix-ui/react-use-callback-ref": "1.1.1", "@radix-ui/react-use-layout-effect": "1.1.1" }, "peerDependencies": { "@types/react": "*", "@types/react-dom": "*", "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc", "react-dom": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc" }, "optionalPeers": ["@types/react", "@types/react-dom"] }, "sha512-tAXIa1g3sM5CGpVT0uIbUx/U3Gs5N8T52IICuCtObaos1S8fzsrPXG5WObkQN3S6NVl6wKgPhAIiBGbWnvc97A=="],
-
     "@radix-ui/react-separator": ["@radix-ui/react-separator@1.1.8", "", { "dependencies": { "@radix-ui/react-primitive": "2.1.4" }, "peerDependencies": { "@types/react": "*", "@types/react-dom": "*", "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc", "react-dom": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc" }, "optionalPeers": ["@types/react", "@types/react-dom"] }, "sha512-sDvqVY4itsKwwSMEe0jtKgfTh+72Sy3gPmQpjqcQneqQ4PFmr/1I0YA+2/puilhggCe2gJcx5EBAYFkWkdpa5g=="],
 
     "@radix-ui/react-slot": ["@radix-ui/react-slot@1.2.4", "", { "dependencies": { "@radix-ui/react-compose-refs": "1.1.2" }, "peerDependencies": { "@types/react": "*", "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc" }, "optionalPeers": ["@types/react"] }, "sha512-Jl+bCv8HxKnlTLVrcDE8zTMJ09R9/ukw4qBs/oZClOfoQk/cOTbDn+NceXfV7j09YPVQUryJPHurafcSg6EVKA=="],
@@ -223,8 +215,6 @@
 
     "@radix-ui/react-use-escape-keydown": ["@radix-ui/react-use-escape-keydown@1.1.1", "", { "dependencies": { "@radix-ui/react-use-callback-ref": "1.1.1" }, "peerDependencies": { "@types/react": "*", "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc" }, "optionalPeers": ["@types/react"] }, "sha512-Il0+boE7w/XebUHyBjroE+DbByORGR9KKmITzbR7MyQ4akpORYP/ZmbhAr0DG7RmmBqoOnZdy2QlvajJ2QA59g=="],
 
-    "@radix-ui/react-use-is-hydrated": ["@radix-ui/react-use-is-hydrated@0.1.0", "", { "dependencies": { "use-sync-external-store": "^1.5.0" }, "peerDependencies": { "@types/react": "*", "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc" }, "optionalPeers": ["@types/react"] }, "sha512-U+UORVEq+cTnRIaostJv9AGdV3G6Y+zbVd+12e18jQ5A3c0xL03IhnHuiU4UV69wolOQp5GfR58NW/EgdQhwOA=="],
-
     "@radix-ui/react-use-layout-effect": ["@radix-ui/react-use-layout-effect@1.1.1", "", { "peerDependencies": { "@types/react": "*", "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc" }, "optionalPeers": ["@types/react"] }, "sha512-RbJRS4UWQFkzHTTwVymMTUv8EqYhOp8dOOviLj2ugtTiXRaRQS7GLGxZTLL1jWhMeoSCf5zmcZkqTl9IiYfXcQ=="],
 
     "@radix-ui/react-use-rect": ["@radix-ui/react-use-rect@1.1.1", "", { "dependencies": { "@radix-ui/rect": "1.1.1" }, "peerDependencies": { "@types/react": "*", "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc" }, "optionalPeers": ["@types/react"] }, "sha512-QTYuDesS0VtuHNNvMh+CjlKJ4LJickCMUAqjlE3+j8w+RlRpwyX3apEQKGFzbZGdo7XNG1tXa+bQqIE7HIXT2w=="],
@@ -891,10 +881,6 @@
 
     "@radix-ui/react-alert-dialog/@radix-ui/react-slot": ["@radix-ui/react-slot@1.2.3", "", { "dependencies": { "@radix-ui/react-compose-refs": "1.1.2" }, "peerDependencies": { "@types/react": "*", "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc" }, "optionalPeers": ["@types/react"] }, "sha512-aeNmHnBxbi2St0au6VBVC7JXFlhLlOnvIIlePNniyUNAClzmtAUEY8/pBiK3iHjufOlwA+c20/8jngo7xcrg8A=="],
 
-    "@radix-ui/react-avatar/@radix-ui/react-context": ["@radix-ui/react-context@1.1.3", "", { "peerDependencies": { "@types/react": "*", "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc" }, "optionalPeers": ["@types/react"] }, "sha512-ieIFACdMpYfMEjF0rEf5KLvfVyIkOz6PDGyNnP+u+4xQ6jny3VCgA4OgXOwNx2aUkxn8zx9fiVcM8CfFYv9Lxw=="],
-
-    "@radix-ui/react-avatar/@radix-ui/react-primitive": ["@radix-ui/react-primitive@2.1.4", "", { "dependencies": { "@radix-ui/react-slot": "1.2.4" }, "peerDependencies": { "@types/react": "*", "@types/react-dom": "*", "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc", "react-dom": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc" }, "optionalPeers": ["@types/react", "@types/react-dom"] }, "sha512-9hQc4+GNVtJAIEPEqlYqW5RiYdrr8ea5XQ0ZOnD6fgru+83kqT15mq2OCcbe8KnjRZl5vF3ks69AKz3kh1jrhg=="],
-
     "@radix-ui/react-collection/@radix-ui/react-slot": ["@radix-ui/react-slot@1.2.3", "", { "dependencies": { "@radix-ui/react-compose-refs": "1.1.2" }, "peerDependencies": { "@types/react": "*", "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc" }, "optionalPeers": ["@types/react"] }, "sha512-aeNmHnBxbi2St0au6VBVC7JXFlhLlOnvIIlePNniyUNAClzmtAUEY8/pBiK3iHjufOlwA+c20/8jngo7xcrg8A=="],
 
     "@radix-ui/react-dialog/@radix-ui/react-slot": ["@radix-ui/react-slot@1.2.3", "", { "dependencies": { "@radix-ui/react-compose-refs": "1.1.2" }, "peerDependencies": { "@types/react": "*", "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc" }, "optionalPeers": ["@types/react"] }, "sha512-aeNmHnBxbi2St0au6VBVC7JXFlhLlOnvIIlePNniyUNAClzmtAUEY8/pBiK3iHjufOlwA+c20/8jngo7xcrg8A=="],
diff --git a/webui/package.json b/webui/package.json
index 7a3d02a32..492df8f57 100644
--- a/webui/package.json
+++ b/webui/package.json
@@ -13,10 +13,8 @@
   },
   "dependencies": {
     "@radix-ui/react-alert-dialog": "^1.1.4",
-    "@radix-ui/react-avatar": "^1.1.2",
     "@radix-ui/react-dialog": "^1.1.4",
     "@radix-ui/react-dropdown-menu": "^2.1.4",
-    "@radix-ui/react-scroll-area": "^1.2.2",
     "@radix-ui/react-separator": "^1.1.1",
     "@radix-ui/react-slot": "^1.1.1",
     "@radix-ui/react-tooltip": "^1.1.6",
diff --git a/webui/src/components/Composer.tsx b/webui/src/components/Composer.tsx
deleted file mode 100644
index 3d6c8f658..000000000
--- a/webui/src/components/Composer.tsx
+++ /dev/null
@@ -1,124 +0,0 @@
-import { useCallback, useEffect, useRef, useState } from "react";
-import { ArrowUp } from "lucide-react";
-
-import { Button } from "@/components/ui/button";
-import { cn } from "@/lib/utils";
-
-interface ComposerProps {
-  onSend: (content: string) => void;
-  disabled?: boolean;
-  placeholder?: string;
-  /** Visually collapse the outer padding when embedded inside a welcome screen. */
-  compact?: boolean;
-}
-
-/**
- * Rounded, shadowed composer with an embedded send button — modeled after the
- * agent-chat-ui input: a single surface that looks like one interactive unit
- * rather than a textarea + button pair.
- */
-export function Composer({
-  onSend,
-  disabled,
-  placeholder = "Type your message…",
-  compact = false,
-}: ComposerProps) {
-  const [value, setValue] = useState("");
-  const textareaRef = useRef<HTMLTextAreaElement>(null);
-
-  // Autofocus on mount — coming back to a chat, switching sessions, or
-  // opening the welcome screen should always land the caret in the box.
-  useEffect(() => {
-    if (disabled) return;
-    const el = textareaRef.current;
-    if (!el) return;
-    // Defer so layout settles first (important during enter animations).
-    const id = requestAnimationFrame(() => el.focus());
-    return () => cancelAnimationFrame(id);
-  }, [disabled]);
-
-  const submit = useCallback(() => {
-    const trimmed = value.trim();
-    if (!trimmed || disabled) return;
-    onSend(trimmed);
-    setValue("");
-    requestAnimationFrame(() => {
-      const el = textareaRef.current;
-      if (el) {
-        el.style.height = "auto";
-        el.focus();
-      }
-    });
-  }, [disabled, onSend, value]);
-
-  const onKeyDown: React.KeyboardEventHandler<HTMLTextAreaElement> = (e) => {
-    if (e.key === "Enter" && !e.shiftKey && !e.nativeEvent.isComposing) {
-      e.preventDefault();
-      submit();
-    }
-  };
-
-  const onInput: React.FormEventHandler<HTMLTextAreaElement> = (e) => {
-    const el = e.currentTarget;
-    el.style.height = "auto";
-    el.style.height = `${Math.min(el.scrollHeight, 260)}px`;
-  };
-
-  return (
-    <form
-      onSubmit={(e) => {
-        e.preventDefault();
-        submit();
-      }}
-      className={cn(
-        "w-full",
-        compact ? "px-0" : "bg-background/95 px-4 pb-4 pt-2 backdrop-blur",
-      )}
-    >
-      <div
-        className={cn(
-          "relative mx-auto flex w-full max-w-[64rem] flex-col overflow-hidden rounded-3xl",
-          "border bg-muted/60 shadow-sm transition-all duration-200",
-          "focus-within:bg-muted focus-within:shadow-md focus-within:ring-1 focus-within:ring-foreground/10",
-          disabled && "opacity-60",
-        )}
-      >
-        <textarea
-          ref={textareaRef}
-          value={value}
-          onChange={(e) => setValue(e.target.value)}
-          onInput={onInput}
-          onKeyDown={onKeyDown}
-          rows={1}
-          placeholder={placeholder}
-          disabled={disabled}
-          aria-label="Message input"
-          className={cn(
-            "min-h-[56px] w-full resize-none bg-transparent px-5 pt-4 pb-2 text-sm",
-            "placeholder:text-muted-foreground",
-            "focus:outline-none focus-visible:outline-none",
-            "disabled:cursor-not-allowed",
-          )}
-        />
-        <div className="flex items-center justify-between gap-2 px-3 pb-2">
-          <span className="hidden select-none text-[11px] text-muted-foreground/70 sm:inline">
-            Enter to send · Shift+Enter for newline
-          </span>
-          <span className="sm:hidden" aria-hidden />
-          <Button
-            type="submit"
-            size="icon"
-            disabled={disabled || !value.trim()}
-            aria-label="Send message"
-            className={cn(
-              "h-9 w-9 rounded-full shadow-sm transition-transform",
-              value.trim() && !disabled && "hover:scale-[1.03] active:scale-95",
-            )}
-          >
-            <ArrowUp className="h-4 w-4" />
-          </Button>
-        </div>
-      </div>
-    </form>
-  );
-}
diff --git a/webui/src/components/EmptyState.tsx b/webui/src/components/EmptyState.tsx
deleted file mode 100644
index bbd06aaf5..000000000
--- a/webui/src/components/EmptyState.tsx
+++ /dev/null
@@ -1,26 +0,0 @@
-import { MessageSquarePlus } from "lucide-react";
-
-import { Button } from "@/components/ui/button";
-
-export function EmptyState({
-  onNewChat,
-}: {
-  onNewChat: () => void;
-}) {
-  return (
-    <div className="flex h-full flex-col items-center justify-center gap-4 text-center">
-      <MessageSquarePlus
-        className="h-10 w-10 text-muted-foreground"
-        aria-hidden
-      />
-      <div className="space-y-1">
-        <p className="text-lg font-medium">No chats yet</p>
-        <p className="max-w-sm text-sm text-muted-foreground">
-          Start a conversation — your sessions are stored locally on the nanobot
-          workspace and stay available across reloads.
-        </p>
-      </div>
-      <Button onClick={onNewChat}>New chat</Button>
-    </div>
-  );
-}
diff --git a/webui/src/components/MessageList.tsx b/webui/src/components/MessageList.tsx
deleted file mode 100644
index 9ef9de653..000000000
--- a/webui/src/components/MessageList.tsx
+++ /dev/null
@@ -1,109 +0,0 @@
-import { useCallback, useEffect, useRef, useState } from "react";
-import { ArrowDown } from "lucide-react";
-
-import { MessageBubble } from "@/components/MessageBubble";
-import { Button } from "@/components/ui/button";
-import { cn } from "@/lib/utils";
-import type { UIMessage } from "@/lib/types";
-
-interface MessageListProps {
-  messages: UIMessage[];
-  isStreaming: boolean;
-}
-
-const NEAR_BOTTOM_PX = 48;
-
-/**
- * Scrollable message log. Auto-sticks to the bottom as new content arrives,
- * but only when the user was already at the bottom — preserving scroll
- * position when they've scrolled up to read earlier turns. A floating
- * "scroll to bottom" button appears whenever we're detached from the bottom.
- */
-export function MessageList({ messages, isStreaming }: MessageListProps) {
-  const scrollRef = useRef<HTMLDivElement>(null);
-  const [atBottom, setAtBottom] = useState(true);
-
-  const scrollToBottom = useCallback((smooth = false) => {
-    const el = scrollRef.current;
-    if (!el) return;
-    el.scrollTo({
-      top: el.scrollHeight,
-      behavior: smooth ? "smooth" : "auto",
-    });
-  }, []);
-
-  // Keep the viewport pinned to the bottom as long as the user hasn't
-  // scrolled up. During streaming we do instant jumps (smooth scrolling each
-  // token fights the incoming animations); on settled updates we animate.
-  useEffect(() => {
-    if (!atBottom) return;
-    scrollToBottom(!isStreaming);
-  }, [messages, isStreaming, atBottom, scrollToBottom]);
-
-  useEffect(() => {
-    const el = scrollRef.current;
-    if (!el) return;
-    const onScroll = () => {
-      const distance = el.scrollHeight - el.scrollTop - el.clientHeight;
-      setAtBottom(distance < NEAR_BOTTOM_PX);
-    };
-    el.addEventListener("scroll", onScroll, { passive: true });
-    return () => el.removeEventListener("scroll", onScroll);
-  }, []);
-
-  if (messages.length === 0) {
-    return (
-      <div className="flex h-full items-center justify-center text-sm text-muted-foreground">
-        Say hi to get started.
-      </div>
-    );
-  }
-
-  return (
-    <div className="relative flex min-h-0 flex-1 overflow-hidden">
-      <div
-        ref={scrollRef}
-        className={cn(
-          "h-full overflow-y-auto scroll-smooth",
-          "[&::-webkit-scrollbar]:w-1.5",
-          "[&::-webkit-scrollbar-thumb]:rounded-full",
-          "[&::-webkit-scrollbar-thumb]:bg-muted-foreground/30",
-          "[&::-webkit-scrollbar-track]:bg-transparent",
-        )}
-      >
-        <div className="mx-auto flex w-full max-w-[64rem] flex-col gap-6 px-4 pt-4 pb-8">
-          {messages.map((m) => (
-            <MessageBubble key={m.id} message={m} />
-          ))}
-        </div>
-      </div>
-
-      {/* Top fade so messages slide under the header gracefully. */}
-      <div
-        aria-hidden
-        className="pointer-events-none absolute inset-x-0 top-0 h-6 bg-gradient-to-b from-background to-transparent"
-      />
-      {/* Bottom fade so messages fade out behind the composer. */}
-      <div
-        aria-hidden
-        className="pointer-events-none absolute inset-x-0 bottom-0 h-8 bg-gradient-to-t from-background to-transparent"
-      />
-
-      {!atBottom && (
-        <Button
-          variant="outline"
-          size="icon"
-          onClick={() => scrollToBottom(true)}
-          className={cn(
-            "absolute bottom-2 left-1/2 h-8 w-8 -translate-x-1/2 rounded-full shadow-md",
-            "bg-background/90 backdrop-blur",
-            "animate-in fade-in-0 zoom-in-95",
-          )}
-          aria-label="Scroll to bottom"
-        >
-          <ArrowDown className="h-4 w-4" />
-        </Button>
-      )}
-    </div>
-  );
-}
diff --git a/webui/src/components/ui/avatar.tsx b/webui/src/components/ui/avatar.tsx
deleted file mode 100644
index eb87cf6c4..000000000
--- a/webui/src/components/ui/avatar.tsx
+++ /dev/null
@@ -1,48 +0,0 @@
-import * as React from "react";
-import * as AvatarPrimitive from "@radix-ui/react-avatar";
-
-import { cn } from "@/lib/utils";
-
-const Avatar = React.forwardRef<
-  React.ElementRef<typeof AvatarPrimitive.Root>,
-  React.ComponentPropsWithoutRef<typeof AvatarPrimitive.Root>
->(({ className, ...props }, ref) => (
-  <AvatarPrimitive.Root
-    ref={ref}
-    className={cn(
-      "relative flex h-9 w-9 shrink-0 overflow-hidden rounded-full",
-      className,
-    )}
-    {...props}
-  />
-));
-Avatar.displayName = AvatarPrimitive.Root.displayName;
-
-const AvatarImage = React.forwardRef<
-  React.ElementRef<typeof AvatarPrimitive.Image>,
-  React.ComponentPropsWithoutRef<typeof AvatarPrimitive.Image>
->(({ className, ...props }, ref) => (
-  <AvatarPrimitive.Image
-    ref={ref}
-    className={cn("aspect-square h-full w-full", className)}
-    {...props}
-  />
-));
-AvatarImage.displayName = AvatarPrimitive.Image.displayName;
-
-const AvatarFallback = React.forwardRef<
-  React.ElementRef<typeof AvatarPrimitive.Fallback>,
-  React.ComponentPropsWithoutRef<typeof AvatarPrimitive.Fallback>
->(({ className, ...props }, ref) => (
-  <AvatarPrimitive.Fallback
-    ref={ref}
-    className={cn(
-      "flex h-full w-full items-center justify-center rounded-full bg-muted text-xs font-medium",
-      className,
-    )}
-    {...props}
-  />
-));
-AvatarFallback.displayName = AvatarPrimitive.Fallback.displayName;
-
-export { Avatar, AvatarFallback, AvatarImage };
diff --git a/webui/src/components/ui/scroll-area.tsx b/webui/src/components/ui/scroll-area.tsx
deleted file mode 100644
index f2c08ab29..000000000
--- a/webui/src/components/ui/scroll-area.tsx
+++ /dev/null
@@ -1,46 +0,0 @@
-import * as React from "react";
-import * as ScrollAreaPrimitive from "@radix-ui/react-scroll-area";
-
-import { cn } from "@/lib/utils";
-
-const ScrollArea = React.forwardRef<
-  React.ElementRef<typeof ScrollAreaPrimitive.Root>,
-  React.ComponentPropsWithoutRef<typeof ScrollAreaPrimitive.Root>
->(({ className, children, ...props }, ref) => (
-  <ScrollAreaPrimitive.Root
-    ref={ref}
-    className={cn("relative overflow-hidden", className)}
-    {...props}
-  >
-    <ScrollAreaPrimitive.Viewport className="h-full w-full min-w-0 rounded-[inherit]">
-      {children}
-    </ScrollAreaPrimitive.Viewport>
-    <ScrollBar />
-    <ScrollAreaPrimitive.Corner />
-  </ScrollAreaPrimitive.Root>
-));
-ScrollArea.displayName = ScrollAreaPrimitive.Root.displayName;
-
-const ScrollBar = React.forwardRef<
-  React.ElementRef<typeof ScrollAreaPrimitive.ScrollAreaScrollbar>,
-  React.ComponentPropsWithoutRef<typeof ScrollAreaPrimitive.ScrollAreaScrollbar>
->(({ className, orientation = "vertical", ...props }, ref) => (
-  <ScrollAreaPrimitive.ScrollAreaScrollbar
-    ref={ref}
-    orientation={orientation}
-    className={cn(
-      "flex touch-none select-none transition-colors",
-      orientation === "vertical" &&
-        "h-full w-2.5 border-l border-l-transparent p-[1px]",
-      orientation === "horizontal" &&
-        "h-2.5 flex-col border-t border-t-transparent p-[1px]",
-      className,
-    )}
-    {...props}
-  >
-    <ScrollAreaPrimitive.ScrollAreaThumb className="relative flex-1 rounded-full bg-border" />
-  </ScrollAreaPrimitive.ScrollAreaScrollbar>
-));
-ScrollBar.displayName = ScrollAreaPrimitive.ScrollAreaScrollbar.displayName;
-
-export { ScrollArea, ScrollBar };