feat: health widget (#8686)

![image](https://github.com/user-attachments/assets/01bca9b5-ecc3-4b9e-ae58-a8af84685121)

frontend/src/component/project/Project/ProjectStatus/ProjectHealth.tsx

@@ -0,0 +1,92 @@
+import type React from 'react';
+import { useTheme, Typography } from '@mui/material';
+import { styled } from '@mui/system';
+import { Link } from 'react-router-dom';
+import useUiConfig from 'hooks/api/getters/useUiConfig/useUiConfig';
+
+interface ProjectHealthProps {
+    health: number;
+}
+
+const HealthContainer = styled('div')(({ theme }) => ({
+    backgroundColor: theme.palette.envAccordion.expanded,
+    padding: theme.spacing(3),
+    borderRadius: theme.shape.borderRadiusExtraLarge,
+    minWidth: '300px',
+    fontSize: theme.spacing(1.75),
+}));
+
+const ChartRow = styled('div')(({ theme }) => ({
+    display: 'flex',
+    alignItems: 'center',
+}));
+
+const StyledSVG = styled('svg')({
+    width: 200,
+    height: 100,
+});
+
+const DescriptionText = styled(Typography)(({ theme }) => ({
+    color: theme.palette.text.secondary,
+}));
+
+export const ProjectHealth: React.FC<ProjectHealthProps> = ({ health }) => {
+    const { isOss } = useUiConfig();
+    const theme = useTheme();
+    const radius = 40;
+    const strokeWidth = 13;
+    const circumference = 2 * Math.PI * radius;
+
+    const gapLength = 0.3;
+    const filledLength = 1 - gapLength;
+    const offset = 0.75 - gapLength / 2;
+    const healthLength = (health / 100) * circumference * 0.7;
+
+    return (
+        <HealthContainer>
+            <ChartRow>
+                <StyledSVG viewBox='0 0 100'>
+                    <circle
+                        cx='50'
+                        cy='50'
+                        r={radius}
+                        fill='none'
+                        stroke={theme.palette.grey[300]}
+                        strokeWidth={strokeWidth}
+                        strokeDasharray={`${filledLength * circumference} ${gapLength * circumference}`}
+                        strokeDashoffset={offset * circumference}
+                    />
+                    <circle
+                        cx='50'
+                        cy='50'
+                        r={radius}
+                        fill='none'
+                        stroke={theme.palette.warning.border}
+                        strokeWidth={strokeWidth}
+                        strokeDasharray={`${healthLength} ${circumference - healthLength}`}
+                        strokeDashoffset={offset * circumference}
+                    />
+                    <text
+                        x='50'
+                        y='50'
+                        textAnchor='middle'
+                        dominantBaseline='middle'
+                        fill={theme.palette.text.primary}
+                        fontSize='24px'
+                    >
+                        {health}%
+                    </text>
+                </StyledSVG>
+                <Typography variant='body2'>
+                    On average, your project health has remained at {health}%
+                    the last 4 weeks
+                </Typography>
+            </ChartRow>
+            <DescriptionText variant='body2'>
+                Remember to archive your stale feature flags to keep the project
+                health growing
+            </DescriptionText>
+            {!isOss() && <Link to='/insights'>View health over time</Link>}
+        </HealthContainer>
+    );
+};

frontend/src/component/project/Project/ProjectStatus/ProjectStatusModal.tsx

@@ -2,6 +2,7 @@ import { styled } from '@mui/material';
 import { SidebarModal } from 'component/common/SidebarModal/SidebarModal';
 import { ProjectResources } from './ProjectResources';
 import { ProjectActivity } from './ProjectActivity';
+import { ProjectHealth } from './ProjectHealth';
 import { ProjectLifecycleSummary } from './ProjectLifecycleSummary';
 
 const ModalContentContainer = styled('div')(({ theme }) => ({
@@ -36,7 +37,7 @@ export const ProjectStatusModal = ({ open, close }: Props) => {
         <SidebarModal open={open} onClose={close} label='Project status'>
             <ModalContentContainer>
                 <HealthRow>
-                    <div>Health widget placeholder</div>
+                    <ProjectHealth health={50} />
                     <ProjectResources />
                 </HealthRow>