Move plan/quota UI to Account; Gemini-style usage card (#73) (#74)

## Summary
- Closes [#73](#73)
- Remove per-message `Tokens in … · out …` under assistant bubbles
- Remove dashboard `UsageSummaryBar` (plan / prompts left / period tokens)
- Add Account **Usage limit** card (Gemini-style): plan name, prompt progress meter with rolling-window reset hint, monthly tokens meter when capped (else period in/out), upgrade hint pointing at Billing

## Test plan
- [ ] Chat dashboard: no usage bar above messages
- [ ] Assistant messages: no token footer
- [ ] Account: Usage limit card shows plan + prompt bar (+ token bar when monthly quota set)
- [ ] `npm test -- --watchAll=false --testPathPattern=ConversationDetailCard` passes

Related follow-up: [#75](#75) upgrade/change/cancel subscription.Reviewed-on: #74

llm-fe/src/llm-fe/components/ConversationDetailCard/ConversationDetailCard.test.tsx

@@ -17,8 +17,6 @@ const theme = {
 const renderCard = (props: {
   message: string;
   user_created: boolean;
-  tokens_in?: number | null;
-  tokens_out?: number | null;
 }) =>
   render(
     <ThemeProvider theme={theme as never}>
@@ -26,38 +24,23 @@ const renderCard = (props: {
     </ThemeProvider>
   );
 
-describe('ConversationDetailCard token usage', () => {
-  it('shows em dash when assistant tokens are missing', () => {
+describe('ConversationDetailCard', () => {
+  it('renders assistant message without token meta', () => {
     renderCard({
       message: 'Hello from the model',
       user_created: false,
-      tokens_in: null,
-      tokens_out: null,
     });
-    expect(screen.getByTestId('message-token-usage')).toHaveTextContent(
-      'Tokens in — · out —'
-    );
+    expect(screen.getByText('Hello from the model')).toBeInTheDocument();
+    expect(screen.queryByTestId('message-token-usage')).not.toBeInTheDocument();
+    expect(screen.queryByText(/Tokens in/i)).not.toBeInTheDocument();
   });
 
-  it('shows reported token counts for assistant messages', () => {
-    renderCard({
-      message: 'Hello from the model',
-      user_created: false,
-      tokens_in: 12,
-      tokens_out: 34,
-    });
-    expect(screen.getByTestId('message-token-usage')).toHaveTextContent(
-      'Tokens in 12 · out 34'
-    );
-  });
-
-  it('hides token meta on user messages', () => {
+  it('renders user message without token meta', () => {
     renderCard({
       message: 'Hi',
       user_created: true,
-      tokens_in: 1,
-      tokens_out: 2,
     });
+    expect(screen.getByText('Hi')).toBeInTheDocument();
     expect(screen.queryByTestId('message-token-usage')).not.toBeInTheDocument();
   });
 });

llm-fe/src/llm-fe/components/ConversationDetailCard/ConversationDetailCard.tsx

@@ -1,7 +1,6 @@
 import React from "react";
 import Markdown from "markdown-to-jsx";
 import styled, { keyframes } from "styled-components";
-import { formatTokenCount } from "../../utils/finance";
 
 const fadeIn = keyframes`
   from { opacity: 0; transform: translateY(10px); }
@@ -68,15 +67,6 @@ const Bubble = styled.div<{ $isUser: boolean }>`
   }
 `;
 
-const TokenMeta = styled.div<{ $isUser: boolean }>`
-  margin-top: 0.35rem;
-  max-width: 80%;
-  font-size: 0.75rem;
-  opacity: 0.65;
-  color: ${({ theme }) => theme.colors.text};
-  text-align: ${(props) => (props.$isUser ? "right" : "left")};
-`;
-
 const LoadingDot = styled.div`
   width: 8px;
   height: 8px;
@@ -104,8 +94,6 @@ const LoadingContainer = styled.div`
 type ConversationDetailCardProps = {
   message: string;
   user_created: boolean;
-  tokens_in?: number | null;
-  tokens_out?: number | null;
 };
 
 const MyPlot = ({ format, image }: { format: string; image: string }) => {
@@ -130,8 +118,6 @@ const MyError = ({ content }: { content: string }) => {
 const ConversationDetailCard = ({
   message,
   user_created,
-  tokens_in = null,
-  tokens_out = null,
 }: ConversationDetailCardProps): JSX.Element => {
   if (message.length === 0) {
     return (
@@ -171,8 +157,6 @@ const ConversationDetailCard = ({
     }
   } catch { }
 
-  const showTokens = !user_created;
-
   return (
     <MessageContainer $isUser={user_created}>
       <Bubble $isUser={user_created}>
@@ -193,11 +177,6 @@ const ConversationDetailCard = ({
           {contentToAdd}
         </Markdown>
       </Bubble>
-      {showTokens ? (
-        <TokenMeta $isUser={user_created} data-testid="message-token-usage">
-          Tokens in {formatTokenCount(tokens_in)} · out {formatTokenCount(tokens_out)}
-        </TokenMeta>
-      ) : null}
     </MessageContainer>
   );
 };

llm-fe/src/llm-fe/components/UsageSummaryBar/UsageSummaryBar.tsx

@@ -1,70 +0,0 @@
-import React, { useCallback, useEffect, useState } from 'react';
-import styled from 'styled-components';
-import { axiosInstance } from '../../../axiosApi';
-import {
-  formatTokenCount,
-  SubscriptionMe,
-} from '../../utils/finance';
-
-const Bar = styled.div`
-  display: flex;
-  flex-wrap: wrap;
-  gap: 0.75rem 1.25rem;
-  align-items: center;
-  padding: 0.65rem 1rem;
-  margin-bottom: 0.75rem;
-  border-radius: 0.75rem;
-  background: ${({ theme }) => theme.colors.cardBackground};
-  border: 1px solid ${({ theme }) => theme.colors.cardBorder};
-  color: ${({ theme }) => theme.colors.text};
-  font-size: 0.85rem;
-  opacity: 0.95;
-`;
-
-const Chip = styled.span`
-  white-space: nowrap;
-`;
-
-const UsageSummaryBar = (): JSX.Element | null => {
-  const [subscription, setSubscription] = useState<SubscriptionMe | null>(null);
-
-  const load = useCallback(async () => {
-    try {
-      const response = await axiosInstance.get<SubscriptionMe>('/finance/subscription/');
-      setSubscription(response.data || null);
-    } catch {
-      setSubscription(null);
-    }
-  }, []);
-
-  useEffect(() => {
-    load();
-  }, [load]);
-
-  if (!subscription?.plan) {
-    return null;
-  }
-
-  const usage = subscription.usage;
-  const promptsLabel =
-    usage.prompts_remaining === null || usage.prompt_quota === null
-      ? '—'
-      : `${usage.prompts_remaining}/${usage.prompt_quota}`;
-
-  return (
-    <Bar data-testid="usage-summary-bar">
-      <Chip>
-        <strong>{subscription.plan.name}</strong>
-      </Chip>
-      <Chip>
-        Prompts left ({usage.window_hours}h): {promptsLabel}
-      </Chip>
-      <Chip>
-        Period tokens in {formatTokenCount(usage.tokens_in_period)} · out{' '}
-        {formatTokenCount(usage.tokens_out_period)}
-      </Chip>
-    </Bar>
-  );
-};
-
-export default UsageSummaryBar;

llm-fe/src/llm-fe/components/UsageSummaryCard/UsageSummaryCard.tsx

@@ -0,0 +1,236 @@
+import React, { useCallback, useEffect, useState } from 'react';
+import styled from 'styled-components';
+import { axiosInstance } from '../../../axiosApi';
+import {
+  formatBillingDate,
+  formatTokenCount,
+  SubscriptionMe,
+} from '../../utils/finance';
+
+const GlassCard = styled.div`
+  background: ${({ theme }) => theme.colors.cardBackground};
+  backdrop-filter: blur(10px);
+  border: 1px solid ${({ theme }) => theme.colors.cardBorder};
+  border-radius: 1rem;
+  padding: 2rem;
+  width: 100%;
+  max-width: 1000px;
+  margin-bottom: 2rem;
+  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
+`;
+
+const CardTitle = styled.h2`
+  font-size: 1.8rem;
+  margin: 0 0 0.35rem 0;
+  color: ${({ theme }) => theme.colors.text};
+`;
+
+const PlanName = styled.p`
+  margin: 0 0 1.75rem 0;
+  font-size: 1rem;
+  font-weight: 600;
+  color: ${({ theme }) => theme.colors.text};
+  opacity: 0.85;
+`;
+
+const MeterBlock = styled.div`
+  margin-bottom: 1.5rem;
+
+  &:last-of-type {
+    margin-bottom: 0;
+  }
+`;
+
+const MeterHeader = styled.div`
+  display: flex;
+  justify-content: space-between;
+  align-items: baseline;
+  gap: 1rem;
+  margin-bottom: 0.55rem;
+`;
+
+const MeterLabel = styled.span`
+  font-size: 1rem;
+  font-weight: 600;
+  color: ${({ theme }) => theme.colors.text};
+`;
+
+const MeterMeta = styled.span`
+  font-size: 0.85rem;
+  color: ${({ theme }) => theme.colors.text};
+  opacity: 0.65;
+  white-space: nowrap;
+`;
+
+const Track = styled.div`
+  width: 100%;
+  height: 0.55rem;
+  border-radius: 999px;
+  background: ${({ theme }) =>
+    theme.darkMode ? 'rgba(255, 255, 255, 0.12)' : 'rgba(0, 0, 0, 0.1)'};
+  overflow: hidden;
+`;
+
+const Fill = styled.div<{ $pct: number; $warn: boolean }>`
+  height: 100%;
+  width: ${({ $pct }) => `${Math.min(100, Math.max(0, $pct))}%`};
+  border-radius: 999px;
+  background: ${({ theme, $warn }) => ($warn ? '#e67e22' : theme.main)};
+  transition: width 0.35s ease;
+`;
+
+const MeterFooter = styled.div`
+  display: flex;
+  justify-content: space-between;
+  gap: 1rem;
+  margin-top: 0.4rem;
+  font-size: 0.8rem;
+  color: ${({ theme }) => theme.colors.text};
+  opacity: 0.65;
+`;
+
+const BodyText = styled.p`
+  margin: 0;
+  color: ${({ theme }) => theme.colors.text};
+  opacity: 0.75;
+  line-height: 1.5;
+`;
+
+const UpgradeHint = styled.p`
+  margin: 1.5rem 0 0 0;
+  padding-top: 1.25rem;
+  border-top: 1px solid ${({ theme }) => theme.colors.cardBorder};
+  font-size: 0.9rem;
+  color: ${({ theme }) => theme.colors.text};
+  opacity: 0.7;
+  line-height: 1.45;
+`;
+
+function clampPct(used: number, quota: number): number {
+  if (quota <= 0) return 0;
+  return Math.min(100, Math.round((used / quota) * 1000) / 10);
+}
+
+type MeterProps = {
+  label: string;
+  meta: string;
+  usedLabel: string;
+  pct: number | null;
+};
+
+const UsageMeter = ({ label, meta, usedLabel, pct }: MeterProps): JSX.Element => {
+  const showBar = pct !== null;
+  const warn = showBar && pct >= 90;
+
+  return (
+    <MeterBlock>
+      <MeterHeader>
+        <MeterLabel>{label}</MeterLabel>
+        <MeterMeta>{meta}</MeterMeta>
+      </MeterHeader>
+      <Track aria-hidden={!showBar}>
+        {showBar ? <Fill $pct={pct} $warn={warn} /> : null}
+      </Track>
+      <MeterFooter>
+        <span>{usedLabel}</span>
+        <span>{showBar ? `${pct}%` : '—'}</span>
+      </MeterFooter>
+    </MeterBlock>
+  );
+};
+
+const UsageSummaryCard = (): JSX.Element => {
+  const [subscription, setSubscription] = useState<SubscriptionMe | null>(null);
+  const [loading, setLoading] = useState(true);
+
+  const load = useCallback(async () => {
+    setLoading(true);
+    try {
+      const response = await axiosInstance.get<SubscriptionMe>('/finance/subscription/');
+      setSubscription(response.data || null);
+    } catch {
+      setSubscription(null);
+    } finally {
+      setLoading(false);
+    }
+  }, []);
+
+  useEffect(() => {
+    load();
+  }, [load]);
+
+  const usage = subscription?.usage;
+  const promptQuota = usage?.prompt_quota ?? null;
+  const promptsUsed = usage?.prompts_in_window ?? 0;
+  const promptPct =
+    promptQuota !== null ? clampPct(promptsUsed, promptQuota) : null;
+
+  const tokenQuota = usage?.monthly_token_quota ?? null;
+  const tokensUsed = usage?.tokens_total_period ?? null;
+  const tokenPct =
+    tokenQuota !== null && tokensUsed !== null
+      ? clampPct(tokensUsed, tokenQuota)
+      : tokenQuota !== null
+        ? 0
+        : null;
+
+  return (
+    <GlassCard data-testid="usage-summary-card">
+      <CardTitle>Usage limit</CardTitle>
+      {loading ? (
+        <BodyText>Loading usage…</BodyText>
+      ) : !subscription?.plan ? (
+        <BodyText>No active plan yet.</BodyText>
+      ) : (
+        <>
+          <PlanName>{subscription.plan.name}</PlanName>
+
+          <UsageMeter
+            label="Prompts"
+            meta={`Resets every ${usage?.window_hours ?? '—'}h`}
+            usedLabel={
+              promptQuota === null
+                ? `${promptsUsed.toLocaleString()} used`
+                : `${promptsUsed.toLocaleString()} / ${promptQuota.toLocaleString()}`
+            }
+            pct={promptPct}
+          />
+
+          {tokenQuota !== null ? (
+            <UsageMeter
+              label="Tokens this month"
+              meta={
+                usage?.period_end
+                  ? `Resets ${formatBillingDate(usage.period_end)}`
+                  : 'Calendar month'
+              }
+              usedLabel={
+                tokensUsed === null
+                  ? `— / ${tokenQuota.toLocaleString()}`
+                  : `${formatTokenCount(tokensUsed)} / ${tokenQuota.toLocaleString()}`
+              }
+              pct={tokenPct}
+            />
+          ) : (
+            <UsageMeter
+              label="Tokens this period"
+              meta={
+                usage?.period_end
+                  ? `Period ends ${formatBillingDate(usage.period_end)}`
+                  : 'This month'
+              }
+              usedLabel={`in ${formatTokenCount(usage?.tokens_in_period ?? null)} · out ${formatTokenCount(usage?.tokens_out_period ?? null)}`}
+              pct={null}
+            />
+          )}
+
+          <UpgradeHint>
+            Need more capacity? Manage or upgrade your plan in Billing below.
+          </UpgradeHint>
+        </>
+      )}
+    </GlassCard>
+  );
+};
+
+export default UsageSummaryCard;

llm-fe/src/llm-fe/pages/Account2/Account2.tsx

@@ -9,6 +9,7 @@ import Header2 from "../../components/Header2/Header2";
 import ParticleBackground from "../../components/ParticleBackground/ParticleBackground";
 import styled from "styled-components";
 import ThemeSettingsCard from "../../components/ThemeSettingsCard/ThemeSettingsCard";
+import UsageSummaryCard from "../../components/UsageSummaryCard/UsageSummaryCard";
 import BillingSection from "../../components/BillingSection/BillingSection";
 
 // Styled Components
@@ -408,6 +409,7 @@ const AccountPage = (): JSX.Element => {
   return (
     <>
       <ThemeSettingsCard />
+      <UsageSummaryCard />
       <BillingSection />
       {account?.is_company_manager ? (
         <CompanyManagerCard />

llm-fe/src/llm-fe/pages/AsyncDashboard2/AsyncDashboard2.tsx

@@ -16,7 +16,6 @@ import { MessageContext } from "../../contexts/MessageContext";
 import ParticleBackground from "../../components/ParticleBackground/ParticleBackground";
 
 import Header2 from "../../components/Header2/Header2";
-import UsageSummaryBar from "../../components/UsageSummaryBar/UsageSummaryBar";
 import { AnalyticsEvents, trackEvent } from "../../utils/analytics";
 
 // Styled Components
@@ -517,7 +516,6 @@ const AsyncDashboardInner = (): JSX.Element => {
       </Sidebar>
 
       <MainContent>
-        <UsageSummaryBar />
         <ChatArea>
           {conversationDetails.length > 0 ? (
             conversationDetails.map((convo_detail, index) =>
@@ -525,16 +523,12 @@ const AsyncDashboardInner = (): JSX.Element => {
                 <ConversationDetailCard
                   message={convo_detail.message}
                   user_created={convo_detail.user_created}
-                  tokens_in={convo_detail.tokens_in}
-                  tokens_out={convo_detail.tokens_out}
                   key={convo_detail.id || index}
                 />
               ) : (
                 <ConversationDetailCard
                   message={stateMessage}
                   user_created={convo_detail.user_created}
-                  tokens_in={convo_detail.tokens_in}
-                  tokens_out={convo_detail.tokens_out}
                   key={convo_detail.id || index}
                 />
               )