style + warnings fix

frontend/src/components/BannerSettingsDialog.tsx

@@ -34,7 +34,7 @@ interface Banner {
   slug: string;
   description: string;
   is_active: boolean;
-  settings: any;
+  settings: Record<string, unknown>;
   schema: BannerSettingSchema[];
 }
 
@@ -52,7 +52,7 @@ const BannerSettingsDialog: React.FC<BannerSettingsDialogProps> = ({
   onSave,
 }) => {
   const { t } = useTranslation();
-  const [localSettings, setLocalSettings] = useState<any>({});
+  const [localSettings, setLocalSettings] = useState<Record<string, unknown>>({});
   const [error, setError] = useState('');
   const [saving, setSaving] = useState(false);
 
@@ -71,15 +71,18 @@ const BannerSettingsDialog: React.FC<BannerSettingsDialogProps> = ({
       await api.patch(`banners/${banner.id}/`, { settings: localSettings });
       onSave();
       onClose();
-    } catch (err: any) {
-      setError(err.response?.data?.error || 'Failed to save settings');
+    } catch (err) {
+      setError(
+        (err as { response?: { data?: { error?: string } } }).response?.data?.error ||
+          'Failed to save settings',
+      );
     } finally {
       setSaving(false);
     }
   };
 
-  const updateSetting = (key: string, value: any) => {
-    setLocalSettings((prev: any) => ({
+  const updateSetting = (key: string, value: unknown) => {
+    setLocalSettings((prev) => ({
       ...prev,
       [key]: value,
     }));
@@ -119,7 +122,7 @@ const BannerSettingsDialog: React.FC<BannerSettingsDialogProps> = ({
             type="number"
             fullWidth
             size="small"
-            value={value}
+            value={String(value)}
             inputProps={{ min: schema.min, max: schema.max, step: schema.step }}
             onChange={(e) => updateSetting(schema.key, Number(e.target.value))}
           />
@@ -127,7 +130,7 @@ const BannerSettingsDialog: React.FC<BannerSettingsDialogProps> = ({
           <TextField
             fullWidth
             size="small"
-            value={value}
+            value={String(value)}
             onChange={(e) => updateSetting(schema.key, e.target.value)}
           />
         )}

frontend/src/components/CookieBanner.tsx

@@ -1,4 +1,4 @@
-import React, { useState, useEffect } from 'react';
+import React, { useState } from 'react';
 import {
   Typography,
   Button,
@@ -19,14 +19,8 @@ interface CookieBannerProps {
 
 const CookieBanner: React.FC<CookieBannerProps> = ({ onThemeChange, currentTheme }) => {
   const { t } = useTranslation();
-  const [open, setOpen] = useState(false);
-
-  useEffect(() => {
-    const consent = localStorage.getItem('cookie-consent');
-    if (!consent) {
-      setOpen(true);
-    }
-  }, []);
+  // Open on first render only if consent hasn't been recorded yet.
+  const [open, setOpen] = useState(() => !localStorage.getItem('cookie-consent'));
 
   const handleAccept = () => {
     localStorage.setItem('cookie-consent', 'true');

frontend/src/components/MentionTextField.tsx

@@ -19,6 +19,13 @@ interface UserSuggestion {
   avatar: string | null;
 }
 
+interface SearchResultItem {
+  type: string;
+  id: number;
+  name: string;
+  image_url: string | null;
+}
+
 interface MentionTextFieldProps {
   value: string;
   onChange: (value: string) => void;
@@ -52,10 +59,10 @@ const MentionTextField: React.FC<MentionTextFieldProps> = ({
   useEffect(() => {
     const fetchUsers = async () => {
       try {
-        const res = await api.get('flavors/search/');
+        const res = await api.get<SearchResultItem[]>('flavors/search/');
         const users = (res.data || [])
-          .filter((item: any) => item.type === 'user')
-          .map((item: any) => ({
+          .filter((item) => item.type === 'user')
+          .map((item) => ({
             id: item.id,
             username: item.name,
             avatar: item.image_url,

frontend/src/components/RatingBadge.tsx

@@ -1,10 +1,10 @@
 import React from 'react';
-import { Box, alpha, useTheme } from '@mui/material';
+import { Box, alpha, useTheme, type SxProps, type Theme } from '@mui/material';
 
 interface RatingBadgeProps {
   score: number;
   size?: 'small' | 'medium' | 'large';
-  sx?: any;
+  sx?: SxProps<Theme>;
 }
 
 const sizeMap = {

frontend/src/components/StatusBadge.tsx

@@ -1,12 +1,12 @@
 import React from 'react';
-import { Box, Typography, alpha, useTheme } from '@mui/material';
+import { Box, Typography, alpha, useTheme, type SxProps, type Theme } from '@mui/material';
 import { useTranslation } from 'react-i18next';
 
 interface StatusBadgeProps {
   isLegacy?: boolean;
   isAvailable?: boolean;
   size?: 'small' | 'medium';
-  sx?: any;
+  sx?: SxProps<Theme>;
 }
 
 const sizeMap = {

frontend/src/components/banners/BannerPerformanceWrapper.test.tsx

@@ -1,7 +1,8 @@
 import { describe, it, expect, beforeEach, afterEach, vi } from 'vitest';
 import { useContext } from 'react';
 import { act, render } from '@testing-library/react';
-import { BannerPerfContext, BannerPerformanceWrapper } from './BannerPerformanceWrapper';
+import { BannerPerformanceWrapper } from './BannerPerformanceWrapper';
+import { BannerPerfContext } from './banner-perf';
 
 type IOEntryLike = { isIntersecting: boolean };
 type IOCallback = (entries: IOEntryLike[]) => void;
@@ -50,12 +51,13 @@ describe('BannerPerformanceWrapper', () => {
     ioCallback = null;
     observeMock = vi.fn();
     disconnectMock = vi.fn();
-    (globalThis as any).IntersectionObserver = FakeIntersectionObserver;
+    (globalThis as unknown as { IntersectionObserver: unknown }).IntersectionObserver =
+      FakeIntersectionObserver;
     mockMatchMedia(false);
   });
 
   afterEach(() => {
-    delete (globalThis as any).IntersectionObserver;
+    delete (globalThis as unknown as { IntersectionObserver?: unknown }).IntersectionObserver;
   });
 
   it('defaults to isActive=true with configured targetFps', () => {

frontend/src/components/banners/BannerPerformanceWrapper.tsx

@@ -1,23 +1,7 @@
-import {
-  createContext,
-  useContext,
-  useEffect,
-  useMemo,
-  useRef,
-  useState,
-  type ReactNode,
-} from 'react';
+import { useEffect, useMemo, useRef, useState, type ReactNode } from 'react';
 import useMediaQuery from '@mui/material/useMediaQuery';
 import Box from '@mui/material/Box';
-
-export interface BannerPerfState {
-  isActive: boolean;
-  targetFps: number;
-}
-
-const defaultState: BannerPerfState = { isActive: true, targetFps: 60 };
-
-export const BannerPerfContext = createContext<BannerPerfState>(defaultState);
+import { BannerPerfContext, type BannerPerfState } from './banner-perf';
 
 export interface BannerPerformanceWrapperProps {
   children: ReactNode;
@@ -61,52 +45,3 @@ export const BannerPerformanceWrapper = ({
     </BannerPerfContext.Provider>
   );
 };
-
-/**
- * Returns a ref whose .current is the live perf state. Banner rAF loops
- * read the ref synchronously inside their draw function to gate/throttle
- * without re-triggering the useEffect that sets up the canvas.
- */
-export const useBannerPerfRef = () => {
-  const state = useContext(BannerPerfContext);
-  const ref = useRef(state);
-  useEffect(() => {
-    ref.current = state;
-  }, [state]);
-  return ref;
-};
-
-export type GateDecision = 'draw' | 'skip' | 'halt';
-
-/**
- * Returns a stable gate function. Call it at the top of your rAF draw
- * callback with the current timestamp; act on the returned decision:
- *   - 'draw': proceed with the draw body and request the next frame
- *   - 'skip': do not draw this frame but still request the next one
- *   - 'halt': user prefers reduced motion; stop rAF entirely
- * The first frame always returns 'draw' so the canvas shows content even
- * when reduced-motion is set.
- */
-export const useBannerFrameGate = () => {
-  const perfRef = useBannerPerfRef();
-  const stateRef = useRef({ lastTs: 0, drawnOnce: false });
-  return useMemo(
-    () =>
-      (now: number): GateDecision => {
-        const { isActive, targetFps } = perfRef.current;
-        if (!stateRef.current.drawnOnce) {
-          stateRef.current.drawnOnce = true;
-          stateRef.current.lastTs = now;
-          return 'draw';
-        }
-        if (!isActive) return targetFps === 0 ? 'halt' : 'skip';
-        if (targetFps > 0) {
-          const minDelta = 1000 / targetFps;
-          if (now - stateRef.current.lastTs < minDelta) return 'skip';
-        }
-        stateRef.current.lastTs = now;
-        return 'draw';
-      },
-    [perfRef],
-  );
-};

frontend/src/components/banners/banner-perf.ts

@@ -0,0 +1,59 @@
+import { createContext, useContext, useEffect, useMemo, useRef } from 'react';
+
+export interface BannerPerfState {
+  isActive: boolean;
+  targetFps: number;
+}
+
+export const defaultBannerPerfState: BannerPerfState = { isActive: true, targetFps: 60 };
+
+export const BannerPerfContext = createContext<BannerPerfState>(defaultBannerPerfState);
+
+/**
+ * Returns a ref whose .current is the live perf state. Banner rAF loops
+ * read the ref synchronously inside their draw function to gate/throttle
+ * without re-triggering the useEffect that sets up the canvas.
+ */
+export const useBannerPerfRef = () => {
+  const state = useContext(BannerPerfContext);
+  const ref = useRef(state);
+  useEffect(() => {
+    ref.current = state;
+  }, [state]);
+  return ref;
+};
+
+export type GateDecision = 'draw' | 'skip' | 'halt';
+
+/**
+ * Returns a stable gate function. Call it at the top of your rAF draw
+ * callback with the current timestamp; act on the returned decision:
+ *   - 'draw': proceed with the draw body and request the next frame
+ *   - 'skip': do not draw this frame but still request the next one
+ *   - 'halt': user prefers reduced motion; stop rAF entirely
+ * The first frame always returns 'draw' so the canvas shows content even
+ * when reduced-motion is set.
+ */
+export const useBannerFrameGate = () => {
+  const perfRef = useBannerPerfRef();
+  const stateRef = useRef({ lastTs: 0, drawnOnce: false });
+  return useMemo(
+    () =>
+      (now: number): GateDecision => {
+        const { isActive, targetFps } = perfRef.current;
+        if (!stateRef.current.drawnOnce) {
+          stateRef.current.drawnOnce = true;
+          stateRef.current.lastTs = now;
+          return 'draw';
+        }
+        if (!isActive) return targetFps === 0 ? 'halt' : 'skip';
+        if (targetFps > 0) {
+          const minDelta = 1000 / targetFps;
+          if (now - stateRef.current.lastTs < minDelta) return 'skip';
+        }
+        stateRef.current.lastTs = now;
+        return 'draw';
+      },
+    [perfRef],
+  );
+};

frontend/src/components/banners/index.ts

@@ -5,6 +5,7 @@ export { default as HextechBanner } from './HextechBanner';
 export { default as HextechCorruptionBanner } from './HextechCorruptionBanner';
 export { default as MatrixBanner } from './MatrixBanner';
 export { default as NebulaBanner } from './NebulaBanner';
-export { BannerPerformanceWrapper, useBannerFrameGate } from './BannerPerformanceWrapper';
+export { BannerPerformanceWrapper } from './BannerPerformanceWrapper';
+export { useBannerFrameGate } from './banner-perf';
 export { useCanvasBanner, CANVAS_STYLE } from './useCanvasBanner';
 export type { CanvasMouse, DrawArgs, UseCanvasBannerOptions } from './useCanvasBanner';

frontend/src/components/banners/useCanvasBanner.test.tsx

@@ -77,12 +77,11 @@ beforeEach(() => {
   });
   // jsdom doesn't implement Canvas 2D — stub it.
   vi.spyOn(HTMLCanvasElement.prototype, 'getContext').mockImplementation(
-    // eslint-disable-next-line @typescript-eslint/no-explicit-any
     () =>
       ({
         scale: vi.fn(),
         setTransform: vi.fn(),
-      }) as any,
+      }) as unknown as CanvasRenderingContext2D,
   );
 });
 

frontend/src/components/banners/useCanvasBanner.ts

@@ -1,5 +1,5 @@
 import { useEffect, useRef, type CSSProperties, type DependencyList, type RefObject } from 'react';
-import { useBannerFrameGate } from './BannerPerformanceWrapper';
+import { useBannerFrameGate } from './banner-perf';
 
 export interface CanvasMouse {
   x: number;

frontend/src/components/ui/Glass.tsx

@@ -1,4 +1,4 @@
-import { styled } from '@mui/material/styles';
+import { styled, type Theme } from '@mui/material/styles';
 import MuiCard from '@mui/material/Card';
 import MuiPaper from '@mui/material/Paper';
 import Box from '@mui/material/Box';
@@ -7,7 +7,7 @@ type Intensity = 'subtle' | 'default' | 'strong';
 
 const intensityStyles =
   (intensity: Intensity) =>
-  ({ theme }: { theme: any }) => {
+  ({ theme }: { theme: Theme }) => {
     const t = theme.tokens;
     const tint =
       intensity === 'strong'

frontend/src/components/ui/HeroGallery.tsx

@@ -38,9 +38,16 @@ const Carousel: React.FC<CarouselProps> = ({ images, alt, onMainClick, variant }
 
   useEffect(() => {
     if (!emblaApi) return;
-    updateState();
     emblaApi.on('select', updateState);
     emblaApi.on('reInit', updateState);
+    // Defer the initial sync off the effect body so it isn't a synchronous
+    // setState (avoids the cascading-render lint and matches the event path).
+    const raf = requestAnimationFrame(updateState);
+    return () => {
+      cancelAnimationFrame(raf);
+      emblaApi.off('select', updateState);
+      emblaApi.off('reInit', updateState);
+    };
   }, [emblaApi, updateState]);
 
   const scrollPrev = () => emblaApi?.scrollPrev();

frontend/src/contexts/AuthContext.tsx

@@ -1,34 +1,9 @@
-import { createContext, useCallback, useEffect, useState, type ReactNode } from 'react';
+import { useCallback, useEffect, useState, type ReactNode } from 'react';
 import { useTranslation } from 'react-i18next';
 import api, { type RetriableConfig } from '../lib/api';
+import { AuthContext, type AuthUser, type FollowingEntry } from './auth-context';
 
-export interface AuthUser {
-  username: string;
-  avatar: string | null;
-  unread_notifications_count: number;
-  is_superuser: boolean;
-  theme?: string;
-  language?: string;
-  drawer_anchor?: 'left' | 'right';
-}
-
-export interface FollowingEntry {
-  id: number;
-  username: string;
-  avatar: string | null;
-}
-
-export interface AuthContextValue {
-  user: AuthUser | null;
-  setUser: (user: AuthUser | null) => void;
-  following: FollowingEntry[];
-  loadingUser: boolean;
-  refetchUser: () => Promise<void>;
-  refetchFollowing: () => Promise<void>;
-  logout: () => Promise<void>;
-}
-
-export const AuthContext = createContext<AuthContextValue | null>(null);
+export type { AuthUser, FollowingEntry };
 
 export const AuthProvider = ({ children }: { children: ReactNode }) => {
   const { i18n } = useTranslation();

frontend/src/contexts/ConfirmContext.tsx

@@ -1,24 +1,13 @@
-import { createContext, useCallback, useRef, useState, type ReactNode } from 'react';
+import { useCallback, useRef, useState, type ReactNode } from 'react';
 import Dialog from '@mui/material/Dialog';
 import DialogTitle from '@mui/material/DialogTitle';
 import DialogContent from '@mui/material/DialogContent';
 import DialogContentText from '@mui/material/DialogContentText';
 import DialogActions from '@mui/material/DialogActions';
 import Button from '@mui/material/Button';
+import { ConfirmContext, type ConfirmOptions } from './confirm-context';
 
-export interface ConfirmOptions {
-  title?: string;
-  message: string;
-  confirmLabel?: string;
-  cancelLabel?: string;
-  danger?: boolean;
-}
-
-export interface ConfirmContextValue {
-  confirm: (opts: ConfirmOptions | string) => Promise<boolean>;
-}
-
-export const ConfirmContext = createContext<ConfirmContextValue | null>(null);
+export type { ConfirmOptions, ConfirmContextValue } from './confirm-context';
 
 export const ConfirmProvider = ({ children }: { children: ReactNode }) => {
   const [open, setOpen] = useState(false);

frontend/src/contexts/NotificationContext.tsx

@@ -1,25 +1,17 @@
-import { createContext, useCallback, useEffect, type ReactNode } from 'react';
+import { useCallback, useEffect, type ReactNode } from 'react';
 import { useQueryClient } from '@tanstack/react-query';
 import { useTranslation } from 'react-i18next';
 import { useAuth } from '../hooks/useAuth';
 import { useToast } from '../hooks/useToast';
 import { queryKeys } from '../api/keys';
-import { useNotificationsQuery, type Notification } from '../api/queries/useNotifications';
+import { useNotificationsQuery } from '../api/queries/useNotifications';
 import {
   useMarkAllNotificationsRead,
   useMarkNotificationRead,
 } from '../api/mutations/useMarkNotifications';
+import { NotificationContext } from './notification-context';
 
-export type { Notification };
-
-export interface NotificationContextValue {
-  notifications: Notification[];
-  fetchNotifications: () => Promise<void>;
-  markAllRead: () => Promise<void>;
-  markRead: (id: number) => Promise<void>;
-}
-
-export const NotificationContext = createContext<NotificationContextValue | null>(null);
+export type { Notification } from './notification-context';
 
 export const NotificationProvider = ({ children }: { children: ReactNode }) => {
   const { user, setUser, refetchUser } = useAuth();

frontend/src/contexts/ThemeContext.tsx

@@ -1,15 +1,10 @@
-import { createContext, useCallback, useMemo, useState, type ReactNode } from 'react';
+import { useCallback, useMemo, useState, type ReactNode } from 'react';
 import { ThemeProvider as MuiThemeProvider, CssBaseline } from '@mui/material';
 import { getTheme, type CatppuccinTheme } from '../theme';
 import api from '../lib/api';
+import { ThemeContext } from './theme-context';
 
-export interface ThemeContextValue {
-  themeName: CatppuccinTheme;
-  setThemeName: (name: CatppuccinTheme) => void;
-  handleThemeChange: (name: CatppuccinTheme, isLoggedIn: boolean) => Promise<void>;
-}
-
-export const ThemeContext = createContext<ThemeContextValue | null>(null);
+export type { ThemeContextValue } from './theme-context';
 
 export const ThemeProvider = ({ children }: { children: ReactNode }) => {
   const [themeName, setThemeName] = useState<CatppuccinTheme>(

frontend/src/contexts/ToastContext.tsx

@@ -1,18 +1,9 @@
-import { createContext, useCallback, useState, type ReactNode } from 'react';
+import { useCallback, useState, type ReactNode } from 'react';
 import Snackbar from '@mui/material/Snackbar';
-import Alert, { type AlertColor } from '@mui/material/Alert';
+import Alert from '@mui/material/Alert';
+import { ToastContext, type ToastOptions } from './toast-context';
 
-export interface ToastOptions {
-  message: string;
-  severity?: AlertColor;
-  duration?: number;
-}
-
-export interface ToastContextValue {
-  notify: (opts: ToastOptions | string) => void;
-}
-
-export const ToastContext = createContext<ToastContextValue | null>(null);
+export type { ToastOptions, ToastContextValue } from './toast-context';
 
 interface ToastState extends ToastOptions {
   key: number;

frontend/src/contexts/auth-context.ts

@@ -0,0 +1,29 @@
+import { createContext } from 'react';
+
+export interface AuthUser {
+  username: string;
+  avatar: string | null;
+  unread_notifications_count: number;
+  is_superuser: boolean;
+  theme?: string;
+  language?: string;
+  drawer_anchor?: 'left' | 'right';
+}
+
+export interface FollowingEntry {
+  id: number;
+  username: string;
+  avatar: string | null;
+}
+
+export interface AuthContextValue {
+  user: AuthUser | null;
+  setUser: (user: AuthUser | null) => void;
+  following: FollowingEntry[];
+  loadingUser: boolean;
+  refetchUser: () => Promise<void>;
+  refetchFollowing: () => Promise<void>;
+  logout: () => Promise<void>;
+}
+
+export const AuthContext = createContext<AuthContextValue | null>(null);

frontend/src/contexts/confirm-context.ts

@@ -0,0 +1,15 @@
+import { createContext } from 'react';
+
+export interface ConfirmOptions {
+  title?: string;
+  message: string;
+  confirmLabel?: string;
+  cancelLabel?: string;
+  danger?: boolean;
+}
+
+export interface ConfirmContextValue {
+  confirm: (opts: ConfirmOptions | string) => Promise<boolean>;
+}
+
+export const ConfirmContext = createContext<ConfirmContextValue | null>(null);

frontend/src/contexts/notification-context.ts

@@ -0,0 +1,13 @@
+import { createContext } from 'react';
+import type { Notification } from '../api/queries/useNotifications';
+
+export type { Notification };
+
+export interface NotificationContextValue {
+  notifications: Notification[];
+  fetchNotifications: () => Promise<void>;
+  markAllRead: () => Promise<void>;
+  markRead: (id: number) => Promise<void>;
+}
+
+export const NotificationContext = createContext<NotificationContextValue | null>(null);

frontend/src/contexts/theme-context.ts

@@ -0,0 +1,10 @@
+import { createContext } from 'react';
+import type { CatppuccinTheme } from '../theme';
+
+export interface ThemeContextValue {
+  themeName: CatppuccinTheme;
+  setThemeName: (name: CatppuccinTheme) => void;
+  handleThemeChange: (name: CatppuccinTheme, isLoggedIn: boolean) => Promise<void>;
+}
+
+export const ThemeContext = createContext<ThemeContextValue | null>(null);

frontend/src/contexts/toast-context.ts

@@ -0,0 +1,14 @@
+import { createContext } from 'react';
+import type { AlertColor } from '@mui/material/Alert';
+
+export interface ToastOptions {
+  message: string;
+  severity?: AlertColor;
+  duration?: number;
+}
+
+export interface ToastContextValue {
+  notify: (opts: ToastOptions | string) => void;
+}
+
+export const ToastContext = createContext<ToastContextValue | null>(null);

frontend/src/hooks/useAuth.ts

@@ -1,5 +1,5 @@
 import { useContext } from 'react';
-import { AuthContext } from '../contexts/AuthContext';
+import { AuthContext } from '../contexts/auth-context';
 
 export const useAuth = () => {
   const ctx = useContext(AuthContext);

frontend/src/hooks/useConfirm.ts

@@ -1,5 +1,5 @@
 import { useContext } from 'react';
-import { ConfirmContext } from '../contexts/ConfirmContext';
+import { ConfirmContext } from '../contexts/confirm-context';
 
 export const useConfirm = () => {
   const ctx = useContext(ConfirmContext);

frontend/src/hooks/useDrawerAnchor.ts

@@ -22,11 +22,17 @@ export const useDrawerAnchor = (): UseDrawerAnchorResult => {
     (user?.drawer_anchor as DrawerAnchor) ?? readLocal(),
   );
 
+  // Adopt the server-side preference when it loads/changes. Derived during
+  // render (tracking the previously-applied value) so it doesn't cost an extra
+  // effect pass; the localStorage mirror is written in the effect below.
+  const [appliedAnchor, setAppliedAnchor] = useState(user?.drawer_anchor);
+  if (user?.drawer_anchor && user.drawer_anchor !== appliedAnchor) {
+    setAppliedAnchor(user.drawer_anchor);
+    setAnchorState(user.drawer_anchor);
+  }
+
   useEffect(() => {
-    if (user?.drawer_anchor) {
-      setAnchorState(user.drawer_anchor);
-      localStorage.setItem(STORAGE_KEY, user.drawer_anchor);
-    }
+    if (user?.drawer_anchor) localStorage.setItem(STORAGE_KEY, user.drawer_anchor);
   }, [user?.drawer_anchor]);
 
   const setAnchor = useCallback(

frontend/src/hooks/useNotifications.ts

@@ -1,5 +1,5 @@
 import { useContext } from 'react';
-import { NotificationContext } from '../contexts/NotificationContext';
+import { NotificationContext } from '../contexts/notification-context';
 
 export const useNotifications = () => {
   const ctx = useContext(NotificationContext);

frontend/src/hooks/useTheme.ts

@@ -1,5 +1,5 @@
 import { useContext } from 'react';
-import { ThemeContext } from '../contexts/ThemeContext';
+import { ThemeContext } from '../contexts/theme-context';
 
 export const useTheme = () => {
   const ctx = useContext(ThemeContext);

frontend/src/hooks/useToast.ts

@@ -1,5 +1,5 @@
 import { useContext } from 'react';
-import { ToastContext } from '../contexts/ToastContext';
+import { ToastContext } from '../contexts/toast-context';
 
 export const useToast = () => {
   const ctx = useContext(ToastContext);

frontend/src/pages/AdminRatingDetail.tsx

@@ -25,12 +25,14 @@ const AdminRatingDetail: React.FC = () => {
   const { notify } = useToast();
   const { confirm } = useConfirm();
 
-  useEffect(() => {
-    if (rating) {
-      setScore(rating.score);
-      setComment(rating.comment || '');
-    }
-  }, [rating]);
+  // Seed the form from the loaded rating during render (tracking the
+  // previously-synced row) so it re-fills only when the data changes.
+  const [syncedRating, setSyncedRating] = useState(rating);
+  if (rating && rating !== syncedRating) {
+    setSyncedRating(rating);
+    setScore(rating.score);
+    setComment(rating.comment || '');
+  }
 
   useEffect(() => {
     if (error) navigate('/admin-panel');

frontend/src/pages/AdminReplyDetail.tsx

@@ -25,9 +25,13 @@ const AdminReplyDetail: React.FC = () => {
   const { notify } = useToast();
   const { confirm } = useConfirm();
 
-  useEffect(() => {
-    if (reply) setText(reply.text);
-  }, [reply]);
+  // Seed the form from the loaded reply during render (tracking the
+  // previously-synced row) so it re-fills only when the data changes.
+  const [syncedReply, setSyncedReply] = useState(reply);
+  if (reply && reply !== syncedReply) {
+    setSyncedReply(reply);
+    setText(reply.text);
+  }
 
   useEffect(() => {
     if (error) navigate('/admin-panel');

frontend/src/pages/PublicProfile.tsx

@@ -66,6 +66,14 @@ const PublicProfile: React.FC = () => {
   const { notify } = useToast();
   const { confirm } = useConfirm();
 
+  // No avatar → no palette. Cleared during render (tracking the previous
+  // avatar) so the reset isn't a synchronous setState inside the effect.
+  const [paletteAvatar, setPaletteAvatar] = useState(data?.avatar);
+  if (data?.avatar !== paletteAvatar) {
+    setPaletteAvatar(data?.avatar);
+    if (!data?.avatar) setPalette([]);
+  }
+
   useEffect(() => {
     if (data?.avatar) {
       const img = new Image();
@@ -96,8 +104,6 @@ const PublicProfile: React.FC = () => {
           setPalette([]);
         }
       };
-    } else {
-      setPalette([]);
     }
   }, [data?.avatar]);
 

frontend/src/pages/Settings.tsx

@@ -74,20 +74,18 @@ const Settings: React.FC<SettingsProps> = ({ themeName, onThemeChange }) => {
   const [pendingConfirmation, setPendingConfirmation] = useState(false);
   const [oldPassword, setOldPassword] = useState('');
   const [newPassword, setNewPassword] = useState('');
-  const [deletionCode, setDeletionCode] = useState('');
-  const [isDeleting, setIsDeleting] = useState(false);
+  const [deletionCode, setDeletionCode] = useState(() => searchParams.get('deletion_code') ?? '');
+  const [isDeleting, setIsDeleting] = useState(() => searchParams.has('deletion_code'));
   const [message, setMessage] = useState<{ type: 'success' | 'error'; text: string } | null>(null);
   const [selectedBannerId, setSelectedBannerId] = useState<number | string>('');
 
   // Deep link from the deletion email: ?deletion_code=NNNNNN pre-fills the code
-  // and opens the confirm form. The user still has to click "Delete" — the link
-  // is a convenience, not a one-click destruct. Strip the param after reading so
-  // it doesn't linger in the URL / browser history.
+  // and opens the confirm form (see the lazy useState initializers above). The
+  // user still has to click "Delete" — the link is a convenience, not a
+  // one-click destruct. Strip the param after reading so it doesn't linger in
+  // the URL / browser history.
   useEffect(() => {
-    const code = searchParams.get('deletion_code');
-    if (!code) return;
-    setDeletionCode(code);
-    setIsDeleting(true);
+    if (!searchParams.has('deletion_code')) return;
     searchParams.delete('deletion_code');
     setSearchParams(searchParams, { replace: true });
   }, [searchParams, setSearchParams]);
@@ -97,15 +95,20 @@ const Settings: React.FC<SettingsProps> = ({ themeName, onThemeChange }) => {
     else navigate('/');
   };
 
-  useEffect(() => {
-    if (!me) return;
+  // Seed the editable form fields from the loaded profile. Done during render
+  // (tracking the previously-synced `me`) rather than in an effect so the
+  // inputs reflect server data without an extra commit/paint, and re-sync only
+  // when the query data actually changes.
+  const [syncedMe, setSyncedMe] = useState<typeof me>(undefined);
+  if (me && me !== syncedMe) {
+    setSyncedMe(me);
     setUsername(me.username);
     setEmail(me.email);
     setCurrentEmail(me.email);
     setAvatar(me.avatar);
     setSelectedBannerId(me.selected_banner || '');
     if (me.language) setLanguage(me.language);
-  }, [me]);
+  }
 
   const handleAvatarUpload = async (e: React.ChangeEvent<HTMLInputElement>) => {
     const file = e.target.files?.[0];

frontend/src/pages/admin/AdminFlavors.tsx

@@ -17,7 +17,7 @@ import {
 } from '@mui/material';
 import { useTranslation } from 'react-i18next';
 import { useToast } from '../../hooks/useToast';
-import { useFlavorsList } from '../../api/queries/useFlavorsList';
+import { useFlavorsList, type FlavorListItem } from '../../api/queries/useFlavorsList';
 import api from '../../lib/api';
 import { useQueryClient } from '@tanstack/react-query';
 import { queryKeys } from '../../api/keys';
@@ -28,8 +28,8 @@ const AdminFlavors: React.FC = () => {
   const queryClient = useQueryClient();
   const { data: flavors = [], isLoading } = useFlavorsList();
 
-  const [keepFlavor, setKeepFlavor] = useState<any>(null);
-  const [removeFlavor, setRemoveFlavor] = useState<any>(null);
+  const [keepFlavor, setKeepFlavor] = useState<FlavorListItem | null>(null);
+  const [removeFlavor, setRemoveFlavor] = useState<FlavorListItem | null>(null);
   const [confirmOpen, setConfirmOpen] = useState(false);
   const [isMerging, setIsMerging] = useState(false);
 
@@ -55,8 +55,10 @@ const AdminFlavors: React.FC = () => {
       setKeepFlavor(null);
       setRemoveFlavor(null);
       setConfirmOpen(false);
-    } catch (err: any) {
-      const errorMsg = err.response?.data?.error || err.message;
+    } catch (err) {
+      const errorMsg =
+        (err as { response?: { data?: { error?: string } } }).response?.data?.error ||
+        (err as Error).message;
       notify({ message: t('admin.errorPrefix', { message: errorMsg }), severity: 'error' });
     } finally {
       setIsMerging(false);

frontend/src/theme.ts

@@ -77,8 +77,22 @@ export const isLightTheme = (mode: CatppuccinTheme): boolean => {
   ].includes(mode);
 };
 
+interface PaletteColor {
+  hex: string;
+}
+
+interface ThemePalette {
+  base: PaletteColor;
+  surface0: PaletteColor;
+  crust: PaletteColor;
+  text: PaletteColor;
+  subtext0: PaletteColor;
+  primary: PaletteColor;
+  secondary: PaletteColor;
+}
+
 export const getTheme = (mode: CatppuccinTheme) => {
-  let palette: any;
+  let palette: ThemePalette;
 
   // Define Holy branding colors
   const holyPurple = { light: '#7c3aed', dark: '#a78bfa' };
@@ -216,7 +230,7 @@ export const getTheme = (mode: CatppuccinTheme) => {
     };
   } else {
     // Handle Catppuccin flavors
-    const flavor = (flavors as any)[mode];
+    const flavor = flavors[mode as keyof typeof flavors];
     if (flavor) {
       const colors = flavor.colors;
       palette = {