diff --git a/eslint.config.mjs b/eslint.config.mjs
index 11ca6d0516..698d1b9c07 100644
--- a/eslint.config.mjs
+++ b/eslint.config.mjs
@@ -1,6 +1,7 @@
+import { defineConfig } from 'eslint/config';
 import js from '@eslint/js';
+import tseslint from 'typescript-eslint';
 import tsParser from '@typescript-eslint/parser';
-import tsPlugin from '@typescript-eslint/eslint-plugin';
 import babelPlugin from '@babel/eslint-plugin';
 import reactPlugin from 'eslint-plugin-react';
 import importPlugin from 'eslint-plugin-import';
@@ -11,7 +12,7 @@ import jestDomPlugin from 'eslint-plugin-jest-dom';
 import prettierConfig from 'eslint-config-prettier';
 import globals from 'globals';
 
-export default [
+export default defineConfig(
   // Global ignores
   {
     ignores: [
@@ -27,8 +28,8 @@ export default [
   // Base JavaScript config
   js.configs.recommended,
 
-  // TypeScript config
-  ...tsPlugin.configs['flat/recommended'],
+  // TypeScript config with type checking
+  ...tseslint.configs.recommendedTypeChecked,
 
   // React config
   reactPlugin.configs.flat.recommended,
@@ -50,6 +51,7 @@ export default [
         ecmaFeatures: {
           jsx: true,
         },
+        // Note: projectService is configured per file type below
       },
     },
     plugins: {
@@ -178,6 +180,40 @@ export default [
         },
       ],
       '@typescript-eslint/no-require-imports': 'off',
+
+      // Disable "no-unsafe" checks which complain about using "any" freely.
+      '@typescript-eslint/no-unsafe-member-access': 'off',
+      '@typescript-eslint/no-unsafe-assignment': 'off',
+      '@typescript-eslint/no-unsafe-call': 'off',
+      '@typescript-eslint/no-unsafe-argument': 'off',
+      '@typescript-eslint/no-unsafe-return': 'off',
+
+      // Disable this one due to false positives when narrowing return types,
+      // see https://github.com/typescript-eslint/typescript-eslint/issues/6951
+      // (it can make `yarn ts` fail after `yarn lint-fix`)
+      '@typescript-eslint/no-unnecessary-type-assertion': 'off',
+
+      '@typescript-eslint/no-unnecessary-condition': [
+        'error',
+        {
+          allowConstantLoopConditions: 'only-allowed-literals',
+          checkTypePredicates: true,
+        },
+      ],
+
+      // Consider enabling these in the future
+      '@typescript-eslint/unbound-method': 'off',
+      '@typescript-eslint/only-throw-error': 'off',
+      '@typescript-eslint/no-floating-promises': 'off',
+      '@typescript-eslint/require-await': 'off',
+      '@typescript-eslint/no-redundant-type-constituents': 'off',
+      '@typescript-eslint/no-misused-promises': 'off',
+      '@typescript-eslint/await-thenable': 'off',
+      '@typescript-eslint/restrict-plus-operands': 'off',
+      '@typescript-eslint/no-base-to-string': 'off',
+      '@typescript-eslint/restrict-template-expressions': 'off',
+      '@typescript-eslint/prefer-promise-reject-errors': 'off',
+      '@typescript-eslint/no-array-delete': 'off',
     },
     linterOptions: {
       // This property is specified both here in addition to the command line in
@@ -189,6 +225,23 @@ export default [
     },
   },
 
+  // TypeScript files - enable type checking
+  {
+    files: ['**/*.ts', '**/*.tsx'],
+    languageOptions: {
+      parserOptions: {
+        projectService: true,
+        tsconfigRootDir: import.meta.dirname,
+      },
+    },
+  },
+
+  // JavaScript files - disable type-aware rules (they can't run on JS anyway)
+  {
+    files: ['**/*.js', '**/*.mjs', '**/*.cjs'],
+    ...tseslint.configs.disableTypeChecked,
+  },
+
   // Source files - enable stricter TypeScript rules
   {
     files: ['src/**/*.ts', 'src/**/*.tsx'],
@@ -255,7 +308,7 @@ export default [
     },
   },
 
-  // __mocks__ directory configuration
+  // __mocks__ directory configuration - globals
   {
     files: ['__mocks__/**/*'],
     languageOptions: {
@@ -266,5 +319,5 @@ export default [
   },
 
   // Prettier config (must be last to override other formatting rules)
-  prettierConfig,
-];
+  prettierConfig
+);
diff --git a/package.json b/package.json
index 4fe87c6071..f5466fd4fd 100644
--- a/package.json
+++ b/package.json
@@ -182,6 +182,7 @@
     "stylelint-config-idiomatic-order": "^10.0.0",
     "stylelint-config-standard": "^39.0.1",
     "typescript": "^5.9.3",
+    "typescript-eslint": "^8.52.0",
     "webpack": "^5.103.0",
     "webpack-cli": "^6.0.1",
     "webpack-dev-server": "^5.2.2",
diff --git a/src/actions/profile-view.ts b/src/actions/profile-view.ts
index 47c50d4017..cd0c9d1813 100644
--- a/src/actions/profile-view.ts
+++ b/src/actions/profile-view.ts
@@ -1080,7 +1080,6 @@ export function isolateProcess(
       for (const localTrack of localTracks) {
         if (
           localTrack.type === 'thread' &&
-          localTrack.threadIndex !== undefined &&
           oldSelectedThreadIndexes.has(localTrack.threadIndex)
         ) {
           newSelectedThreadIndexes.add(localTrack.threadIndex);
diff --git a/src/actions/receive-profile.ts b/src/actions/receive-profile.ts
index bfca2b3ba0..ba33b3bc8b 100644
--- a/src/actions/receive-profile.ts
+++ b/src/actions/receive-profile.ts
@@ -1096,7 +1096,7 @@ async function _extractJsonFromResponse(
       message = 'The network request to load the profile was aborted.';
     } else if (fileType === 'application/json') {
       message = 'The profile’s JSON could not be decoded.';
-    } else if (fileType === null && arrayBuffer !== null) {
+    } else if (arrayBuffer !== null) {
       // If the content type is not specified, use a raw array buffer
       // to fallback to other supported profile formats.
       return arrayBuffer;
@@ -1163,10 +1163,6 @@ export function retrieveProfileOrZipFromUrl(
             serializedProfile,
             profileUrl
           );
-          if (profile === undefined) {
-            throw new Error('Unable to parse the profile.');
-          }
-
           await dispatch(loadProfile(profile, {}, initialLoad));
           break;
         }
diff --git a/src/app-logic/url-handling.ts b/src/app-logic/url-handling.ts
index de0818abe4..c7f95de126 100644
--- a/src/app-logic/url-handling.ts
+++ b/src/app-logic/url-handling.ts
@@ -893,7 +893,7 @@ const _upgraders: {
     // will not be preserved.
     const transforms = parseTransforms(query.transforms);
 
-    if (!transforms || transforms.length === 0) {
+    if (transforms.length === 0) {
       // We don't have any transforms to upgrade.
       return;
     }
diff --git a/src/app-logic/web-channel.ts b/src/app-logic/web-channel.ts
index 34ba5bdf8b..4db2cf6825 100644
--- a/src/app-logic/web-channel.ts
+++ b/src/app-logic/web-channel.ts
@@ -101,6 +101,7 @@ export type ResponseFromBrowser =
   | GetSymbolTableResponse
   | QuerySymbolicationApiResponse
   | GetPageFaviconsResponse
+  // eslint-disable-next-line @typescript-eslint/no-duplicate-type-constituents
   | OpenScriptInTabDebuggerResponse;
 
 type StatusQueryResponse = {
diff --git a/src/components/app/CompareHome.tsx b/src/components/app/CompareHome.tsx
index 71a1923459..2eac84424c 100644
--- a/src/components/app/CompareHome.tsx
+++ b/src/components/app/CompareHome.tsx
@@ -23,7 +23,7 @@ type State = {
 };
 
 class CompareHomeImpl extends PureComponent<Props, State> {
-  override state = { profile1: '', profile2: '' };
+  override state: State = { profile1: '', profile2: '' };
 
   handleInputChange = (event: React.ChangeEvent<HTMLInputElement>) => {
     const { name, value } = event.target;
diff --git a/src/components/app/FooterLinks.tsx b/src/components/app/FooterLinks.tsx
index d1fb2745c8..a570915cda 100644
--- a/src/components/app/FooterLinks.tsx
+++ b/src/components/app/FooterLinks.tsx
@@ -15,7 +15,7 @@ export class FooterLinks extends PureComponent<{}, State> {
     this.setState({ hide: true });
   };
 
-  override state = {
+  override state: State = {
     hide: false,
   };
 
diff --git a/src/components/app/Home.tsx b/src/components/app/Home.tsx
index 99e4d67898..15045dfd18 100644
--- a/src/components/app/Home.tsx
+++ b/src/components/app/Home.tsx
@@ -54,7 +54,7 @@ class ActionButtons extends React.PureComponent<
 > {
   _fileInput: HTMLInputElement | null = null;
 
-  override state = {
+  override state: ActionButtonsState = {
     isLoadFromUrlPressed: false,
   };
 
@@ -129,7 +129,7 @@ class LoadFromUrl extends React.PureComponent<
   LoadFromUrlProps,
   LoadFromUrlState
 > {
-  override state = {
+  override state: LoadFromUrlState = {
     value: '',
   };
 
diff --git a/src/components/app/KeyboardShortcut.tsx b/src/components/app/KeyboardShortcut.tsx
index 58ee157ca1..b0c648f658 100644
--- a/src/components/app/KeyboardShortcut.tsx
+++ b/src/components/app/KeyboardShortcut.tsx
@@ -23,7 +23,7 @@ type State = {
  * Display a list of shortcuts that overlays the screen.
  */
 export class KeyboardShortcut extends React.PureComponent<Props, State> {
-  override state = {
+  override state: State = {
     isOpen: false,
     // The eslint error is a false positive due to how it's used, see the line:
     //  `focusAfterClosed.focus()`
diff --git a/src/components/app/ListOfPublishedProfiles.tsx b/src/components/app/ListOfPublishedProfiles.tsx
index 650c87f432..574b89b709 100644
--- a/src/components/app/ListOfPublishedProfiles.tsx
+++ b/src/components/app/ListOfPublishedProfiles.tsx
@@ -49,7 +49,7 @@ class PublishedProfile extends React.PureComponent<
   PublishedProfileProps,
   PublishedProfileState
 > {
-  override state = {
+  override state: PublishedProfileState = {
     confirmDialogIsOpen: false,
   };
 
@@ -162,7 +162,7 @@ type State = {
 export class ListOfPublishedProfiles extends PureComponent<Props, State> {
   _isMounted = false;
 
-  override state = {
+  override state: State = {
     uploadedProfileInformationList: null,
   };
 
diff --git a/src/components/app/MenuButtons/MetaInfo.tsx b/src/components/app/MenuButtons/MetaInfo.tsx
index 8defaf2ef9..a799586147 100644
--- a/src/components/app/MenuButtons/MetaInfo.tsx
+++ b/src/components/app/MenuButtons/MetaInfo.tsx
@@ -58,7 +58,7 @@ type Props = ConnectedProps<{}, StateProps, DispatchProps>;
  * This component formats the profile's meta information into a dropdown panel.
  */
 class MetaInfoPanelImpl extends React.PureComponent<Props, State> {
-  override state = { showsMoreInfo: false };
+  override state: State = { showsMoreInfo: false };
 
   /**
    * This method provides information about the symbolication status, and a button
diff --git a/src/components/app/MenuButtons/Permalink.tsx b/src/components/app/MenuButtons/Permalink.tsx
index 42f165e726..f0748f66e2 100644
--- a/src/components/app/MenuButtons/Permalink.tsx
+++ b/src/components/app/MenuButtons/Permalink.tsx
@@ -30,7 +30,7 @@ export class MenuButtonsPermalink extends React.PureComponent<Props, State> {
     this._permalinkTextField = elem;
   };
 
-  override state = {
+  override state: State = {
     fullUrl: '',
     shortUrl: '',
   };
diff --git a/src/components/app/ProfileName.tsx b/src/components/app/ProfileName.tsx
index 12e78e7df9..ced242dd2e 100644
--- a/src/components/app/ProfileName.tsx
+++ b/src/components/app/ProfileName.tsx
@@ -37,7 +37,7 @@ type State = {
  * state), and then when active, it switches to an input, which is only fixed in size.
  */
 class ProfileNameImpl extends React.PureComponent<Props, State> {
-  override state = {
+  override state: State = {
     focusedWithKey: null,
     focusGeneration: 0,
   };
diff --git a/src/components/js-tracer/Canvas.tsx b/src/components/js-tracer/Canvas.tsx
index abed86ac95..a40c9928f3 100644
--- a/src/components/js-tracer/Canvas.tsx
+++ b/src/components/js-tracer/Canvas.tsx
@@ -90,7 +90,7 @@ const ROW_LABEL_OFFSET_LEFT: CssPixels = 5;
 const FONT_SIZE: CssPixels = 10;
 
 class JsTracerCanvasImpl extends React.PureComponent<Props, State> {
-  override state = {
+  override state: State = {
     hasFirstDraw: false,
   };
   _textMeasurement: TextMeasurement | null = null;
diff --git a/src/components/js-tracer/Chart.tsx b/src/components/js-tracer/Chart.tsx
index c980c96d93..bbabf09c80 100644
--- a/src/components/js-tracer/Chart.tsx
+++ b/src/components/js-tracer/Chart.tsx
@@ -175,7 +175,7 @@ class JsTracerChartLoader extends React.PureComponent<
   ChartLoaderProps,
   ChartLoaderState
 > {
-  override state = {
+  override state: ChartLoaderState = {
     // The loader needs to be mounted before rendering the chart, as it has expensive
     // selectors.
     readyToRenderExpensiveChart: false,
diff --git a/src/components/network-chart/NetworkChartRow.tsx b/src/components/network-chart/NetworkChartRow.tsx
index e1bb62e180..2090b46c09 100644
--- a/src/components/network-chart/NetworkChartRow.tsx
+++ b/src/components/network-chart/NetworkChartRow.tsx
@@ -314,7 +314,7 @@ export class NetworkChartRow extends React.PureComponent<
   NetworkChartRowProps,
   State
 > {
-  override state = {
+  override state: State = {
     pageX: 0,
     pageY: 0,
     hovered: false,
diff --git a/src/components/shared/ButtonWithPanel/ArrowPanel.tsx b/src/components/shared/ButtonWithPanel/ArrowPanel.tsx
index 109ac54b84..7bc64f9a31 100644
--- a/src/components/shared/ButtonWithPanel/ArrowPanel.tsx
+++ b/src/components/shared/ButtonWithPanel/ArrowPanel.tsx
@@ -27,7 +27,7 @@ type State = {
 
 export class ArrowPanel extends React.PureComponent<Props, State> {
   closeTimeout: NodeJS.Timeout | null = null;
-  override state = {
+  override state: State = {
     open: false,
     isClosing: false,
     openGeneration: 0,
diff --git a/src/components/shared/Draggable.tsx b/src/components/shared/Draggable.tsx
index c463d035e6..c4648a2ed4 100644
--- a/src/components/shared/Draggable.tsx
+++ b/src/components/shared/Draggable.tsx
@@ -36,7 +36,7 @@ export class Draggable<T> extends React.PureComponent<Props<T>, State> {
     mouseMoveHandler: (param: MouseEvent) => void;
     mouseUpHandler: (param: MouseEvent) => void;
   } | null = null;
-  override state = {
+  override state: State = {
     dragging: false,
   };
 
diff --git a/src/components/shared/MarkerSettings.tsx b/src/components/shared/MarkerSettings.tsx
index d7f8383e2e..06dd707fd7 100644
--- a/src/components/shared/MarkerSettings.tsx
+++ b/src/components/shared/MarkerSettings.tsx
@@ -42,7 +42,7 @@ type State = {
 };
 
 class MarkerSettingsImpl extends PureComponent<Props, State> {
-  override state = {
+  override state: State = {
     isMarkerFiltersMenuVisible: false,
     isFilterMenuVisibleOnMouseDown: false,
   };
diff --git a/src/components/shared/PanelSearch.tsx b/src/components/shared/PanelSearch.tsx
index be4be2aef7..c1a93c8121 100644
--- a/src/components/shared/PanelSearch.tsx
+++ b/src/components/shared/PanelSearch.tsx
@@ -19,7 +19,7 @@ type Props = {
 type State = { searchFieldFocused: boolean };
 
 export class PanelSearch extends React.PureComponent<Props, State> {
-  override state = { searchFieldFocused: false };
+  override state: State = { searchFieldFocused: false };
   _onSearchFieldIdleAfterChange = (value: string) => {
     this.props.onSearch(value);
   };
diff --git a/src/components/shared/Reorderable.tsx b/src/components/shared/Reorderable.tsx
index ad287fca42..7165b11fde 100644
--- a/src/components/shared/Reorderable.tsx
+++ b/src/components/shared/Reorderable.tsx
@@ -65,7 +65,7 @@ export class Reorderable extends React.PureComponent<Props, State> {
     },
   };
 
-  override state = {
+  override state: State = {
     phase: 'RESTING' as const,
     manipulatingIndex: -1,
     destinationIndex: -1,
diff --git a/src/components/shared/TreeView.tsx b/src/components/shared/TreeView.tsx
index a6eb6e374d..8f3df2e829 100644
--- a/src/components/shared/TreeView.tsx
+++ b/src/components/shared/TreeView.tsx
@@ -485,7 +485,7 @@ export class TreeView<
     initialWidth: CssPixels;
   } | null = null;
 
-  override state = {
+  override state: TreeViewState = {
     // This contains the current widths, while or after the user resizes them.
     fixedColumnWidths: null,
 
diff --git a/src/components/shared/VirtualList.tsx b/src/components/shared/VirtualList.tsx
index bd01924cf2..bc634c9fc3 100644
--- a/src/components/shared/VirtualList.tsx
+++ b/src/components/shared/VirtualList.tsx
@@ -260,7 +260,7 @@ export class VirtualList<Item> extends React.PureComponent<
   VirtualListState
 > {
   _container: { current: HTMLDivElement | null } = React.createRef();
-  override state = { scrollTop: 0, containerHeight: 0 };
+  override state: VirtualListState = { scrollTop: 0, containerHeight: 0 };
 
   override componentDidMount() {
     document.addEventListener('copy', this._onCopy, false);
diff --git a/src/components/shared/Warning.tsx b/src/components/shared/Warning.tsx
index de54bf4c76..9fc0827979 100644
--- a/src/components/shared/Warning.tsx
+++ b/src/components/shared/Warning.tsx
@@ -18,7 +18,7 @@ type State = {
 };
 
 export class Warning extends PureComponent<Props, State> {
-  override state = { isNoticeDisplayed: true };
+  override state: State = { isNoticeDisplayed: true };
 
   _onHideClick = () => {
     this.setState({
diff --git a/src/components/shared/WithSize.tsx b/src/components/shared/WithSize.tsx
index 596ddabba7..5c51da89c5 100644
--- a/src/components/shared/WithSize.tsx
+++ b/src/components/shared/WithSize.tsx
@@ -29,7 +29,7 @@ export function withSize<Props>(
   Wrapped: React.ComponentType<PropsWithSize<Props>>
 ): React.ComponentType<Props> {
   return class WithSizeWrapper extends React.PureComponent<Props, State> {
-    override state = { width: 0, height: 0 };
+    override state: State = { width: 0, height: 0 };
     _container: HTMLElement | null = null;
 
     override componentDidMount() {
diff --git a/src/components/shared/thread/SampleGraph.tsx b/src/components/shared/thread/SampleGraph.tsx
index 032e0bb35f..76f84afe23 100644
--- a/src/components/shared/thread/SampleGraph.tsx
+++ b/src/components/shared/thread/SampleGraph.tsx
@@ -243,7 +243,7 @@ class ThreadSampleGraphCanvas extends React.PureComponent<CanvasProps> {
 }
 
 export class ThreadSampleGraphImpl extends PureComponent<Props, State> {
-  override state = {
+  override state: State = {
     hoveredPixelState: null,
     mouseX: 0,
     mouseY: 0,
diff --git a/src/components/timeline/FullTimeline.tsx b/src/components/timeline/FullTimeline.tsx
index 97eb3b65d3..2125e7ed12 100644
--- a/src/components/timeline/FullTimeline.tsx
+++ b/src/components/timeline/FullTimeline.tsx
@@ -123,7 +123,7 @@ class TimelineSettingsHiddenTracks extends React.PureComponent<{
 }
 
 class FullTimelineImpl extends React.PureComponent<Props, State> {
-  override state = {
+  override state: State = {
     initialSelected: null,
   };
 
diff --git a/src/components/timeline/Markers.tsx b/src/components/timeline/Markers.tsx
index f75f72db74..6132a9770a 100644
--- a/src/components/timeline/Markers.tsx
+++ b/src/components/timeline/Markers.tsx
@@ -312,7 +312,7 @@ type State = {
 };
 
 class TimelineMarkers extends React.PureComponent<Props, State> {
-  override state = {
+  override state: State = {
     hoveredMarkerIndex: null,
     mouseDownMarker: null,
     mouseX: 0,
diff --git a/src/components/timeline/OverflowEdgeIndicator.tsx b/src/components/timeline/OverflowEdgeIndicator.tsx
index b9c5bc0072..14f0c612df 100644
--- a/src/components/timeline/OverflowEdgeIndicator.tsx
+++ b/src/components/timeline/OverflowEdgeIndicator.tsx
@@ -28,7 +28,7 @@ class OverflowEdgeIndicator extends React.PureComponent<Props, State> {
   _contentsWrapper: HTMLDivElement | null = null;
   _scrolledToInitialSelected: boolean = false;
 
-  override state = {
+  override state: State = {
     overflowsOnTop: false,
     overflowsOnRight: false,
     overflowsOnBottom: false,
diff --git a/src/components/timeline/TrackBandwidthGraph.tsx b/src/components/timeline/TrackBandwidthGraph.tsx
index 6f05c80bd2..ab69a052a1 100644
--- a/src/components/timeline/TrackBandwidthGraph.tsx
+++ b/src/components/timeline/TrackBandwidthGraph.tsx
@@ -334,7 +334,7 @@ type State = {
  * graph in the timeline.
  */
 class TrackBandwidthGraphImpl extends React.PureComponent<Props, State> {
-  override state = {
+  override state: State = {
     hoveredCounter: null,
     mouseX: 0,
     mouseY: 0,
diff --git a/src/components/timeline/TrackContextMenu.tsx b/src/components/timeline/TrackContextMenu.tsx
index d4939d3526..f90af33130 100644
--- a/src/components/timeline/TrackContextMenu.tsx
+++ b/src/components/timeline/TrackContextMenu.tsx
@@ -107,7 +107,7 @@ class TimelineTrackContextMenuImpl extends PureComponent<
   TimelineTrackContextMenuProps,
   TimelineTrackContextMenuState
 > {
-  override state = { searchFilter: '' };
+  override state: TimelineTrackContextMenuState = { searchFilter: '' };
   _globalTrackClickTimeout: NodeJS.Timeout | null = null;
   _trackSearchFieldElem: { current: TrackSearchField | null } =
     React.createRef();
diff --git a/src/components/timeline/TrackCustomMarkerGraph.tsx b/src/components/timeline/TrackCustomMarkerGraph.tsx
index db5d254e00..67c4a8d3d7 100644
--- a/src/components/timeline/TrackCustomMarkerGraph.tsx
+++ b/src/components/timeline/TrackCustomMarkerGraph.tsx
@@ -358,7 +358,7 @@ type State = {
  * graph in the timeline.
  */
 class TrackCustomMarkerGraphImpl extends React.PureComponent<Props, State> {
-  override state = {
+  override state: State = {
     hoveredCounter: null,
     mouseX: 0,
     mouseY: 0,
diff --git a/src/components/timeline/TrackEventDelayGraph.tsx b/src/components/timeline/TrackEventDelayGraph.tsx
index 85461b52c2..5dba93539f 100644
--- a/src/components/timeline/TrackEventDelayGraph.tsx
+++ b/src/components/timeline/TrackEventDelayGraph.tsx
@@ -197,7 +197,7 @@ type State = {
  *
  */
 class TrackEventDelayGraphImpl extends React.PureComponent<Props, State> {
-  override state = {
+  override state: State = {
     hoveredDelay: null,
     mouseX: 0,
     mouseY: 0,
diff --git a/src/components/timeline/TrackMemoryGraph.tsx b/src/components/timeline/TrackMemoryGraph.tsx
index 8e1a0f74a6..e16edfe802 100644
--- a/src/components/timeline/TrackMemoryGraph.tsx
+++ b/src/components/timeline/TrackMemoryGraph.tsx
@@ -273,7 +273,7 @@ type State = {
  * graph in the timeline.
  */
 class TrackMemoryGraphImpl extends React.PureComponent<Props, State> {
-  override state = {
+  override state: State = {
     hoveredCounter: null,
     mouseX: 0,
     mouseY: 0,
diff --git a/src/components/timeline/TrackNetwork.tsx b/src/components/timeline/TrackNetwork.tsx
index 04f6ffb664..339a4bc6ab 100644
--- a/src/components/timeline/TrackNetwork.tsx
+++ b/src/components/timeline/TrackNetwork.tsx
@@ -277,7 +277,7 @@ type State = {
 };
 
 class Network extends PureComponent<Props, State> {
-  override state = { hoveredMarkerIndex: null, mouseX: 0, mouseY: 0 };
+  override state: State = { hoveredMarkerIndex: null, mouseX: 0, mouseY: 0 };
 
   _onHoveredMarkerChange = (
     hoveredMarkerIndex: MarkerIndex | null,
diff --git a/src/components/timeline/TrackPowerGraph.tsx b/src/components/timeline/TrackPowerGraph.tsx
index c8613636f5..446eef23dc 100644
--- a/src/components/timeline/TrackPowerGraph.tsx
+++ b/src/components/timeline/TrackPowerGraph.tsx
@@ -304,7 +304,7 @@ type State = {
  * graph in the timeline.
  */
 class TrackPowerGraphImpl extends React.PureComponent<Props, State> {
-  override state = {
+  override state: State = {
     hoveredCounter: null,
     mouseX: 0,
     mouseY: 0,
diff --git a/src/components/timeline/TrackProcessCPUGraph.tsx b/src/components/timeline/TrackProcessCPUGraph.tsx
index 0f6c7d7fe3..dbe9bfce8c 100644
--- a/src/components/timeline/TrackProcessCPUGraph.tsx
+++ b/src/components/timeline/TrackProcessCPUGraph.tsx
@@ -228,7 +228,7 @@ type State = {
  * graph in the timeline.
  */
 class TrackProcessCPUGraphImpl extends React.PureComponent<Props, State> {
-  override state = {
+  override state: State = {
     hoveredCounter: null,
     mouseX: 0,
     mouseY: 0,
diff --git a/src/components/timeline/TrackScreenshots.tsx b/src/components/timeline/TrackScreenshots.tsx
index 4ec906de4e..93a227301c 100644
--- a/src/components/timeline/TrackScreenshots.tsx
+++ b/src/components/timeline/TrackScreenshots.tsx
@@ -54,7 +54,7 @@ type State = {
 };
 
 class Screenshots extends PureComponent<Props, State> {
-  override state = {
+  override state: State = {
     offsetX: null,
     pageX: null,
     containerTop: null,
diff --git a/src/components/timeline/TrackVisualProgressGraph.tsx b/src/components/timeline/TrackVisualProgressGraph.tsx
index bdf7f1d715..5aefdc4dd4 100644
--- a/src/components/timeline/TrackVisualProgressGraph.tsx
+++ b/src/components/timeline/TrackVisualProgressGraph.tsx
@@ -197,7 +197,7 @@ type State = {
  * graph in the timeline.
  */
 class TrackVisualProgressGraphImpl extends React.PureComponent<Props, State> {
-  override state = {
+  override state: State = {
     hoveredVisualProgress: null,
     mouseX: 0,
     mouseY: 0,
diff --git a/src/components/tooltip/DivWithTooltip.tsx b/src/components/tooltip/DivWithTooltip.tsx
index bb430e9c79..aa1e0cef02 100644
--- a/src/components/tooltip/DivWithTooltip.tsx
+++ b/src/components/tooltip/DivWithTooltip.tsx
@@ -22,7 +22,7 @@ type State = {
  * a div.
  */
 export class DivWithTooltip extends React.PureComponent<Props, State> {
-  override state = {
+  override state: State = {
     isMouseOver: false,
     mouseX: 0,
     mouseY: 0,
diff --git a/src/profile-logic/profile-data.ts b/src/profile-logic/profile-data.ts
index 21af66fcd8..5e0d8e5e04 100644
--- a/src/profile-logic/profile-data.ts
+++ b/src/profile-logic/profile-data.ts
@@ -2788,15 +2788,11 @@ export function getThreadProcessDetails(
 ): string {
   let label = `${friendlyThreadName}\n`;
   label += `Thread: "${thread.name}"`;
-  if (thread.tid !== undefined) {
-    label += ` (${thread.tid})`;
-  }
+  label += ` (${thread.tid})`;
 
   if (thread.processType) {
     label += `\nProcess: "${thread.processType}"`;
-    if (thread.pid !== undefined) {
-      label += ` (${thread.pid})`;
-    }
+    label += ` (${thread.pid})`;
   }
 
   if (thread.isPrivateBrowsing) {
diff --git a/src/profile-logic/tracks.ts b/src/profile-logic/tracks.ts
index d774501c07..dd09c80f27 100644
--- a/src/profile-logic/tracks.ts
+++ b/src/profile-logic/tracks.ts
@@ -144,10 +144,7 @@ function _getDefaultLocalTrackOrder(
     if (tracks[a].type === 'thread' && tracks[b].type === 'thread' && profile) {
       const idxA = tracks[a].threadIndex;
       const idxB = tracks[b].threadIndex;
-      if (idxA === undefined || idxB === undefined) {
-        return -1;
-      }
-      if (profile && profile.meta.keepProfileThreadOrder) {
+      if (profile.meta.keepProfileThreadOrder) {
         return idxA - idxB;
       }
       const nameA = profile.threads[idxA].name;
diff --git a/src/reducers/app.ts b/src/reducers/app.ts
index 5c3653dfd9..effa46510a 100644
--- a/src/reducers/app.ts
+++ b/src/reducers/app.ts
@@ -180,7 +180,7 @@ const lastVisibleThreadTabSlug: Reducer<TabSlug> = (
   }
 };
 
-const trackThreadHeights: Reducer<{ [key: ThreadsKey]: CssPixels }> = (
+const trackThreadHeights: Reducer<Partial<Record<ThreadsKey, CssPixels>>> = (
   state = {},
   action
 ) => {
diff --git a/src/selectors/app.tsx b/src/selectors/app.tsx
index d46d71eb4e..7be9f0b8c2 100644
--- a/src/selectors/app.tsx
+++ b/src/selectors/app.tsx
@@ -59,9 +59,9 @@ export const getPanelLayoutGeneration: Selector<number> = (state) =>
   getApp(state).panelLayoutGeneration;
 export const getLastVisibleThreadTabSlug: Selector<TabSlug> = (state) =>
   getApp(state).lastVisibleThreadTabSlug;
-export const getTrackThreadHeights: Selector<{
-  [key: ThreadsKey]: CssPixels;
-}> = (state) => getApp(state).trackThreadHeights;
+export const getTrackThreadHeights: Selector<
+  Partial<Record<ThreadsKey, CssPixels>>
+> = (state) => getApp(state).trackThreadHeights;
 export const getIsNewlyPublished: Selector<boolean> = (state) =>
   getApp(state).isNewlyPublished;
 export const getExperimental: Selector<ExperimentalFlags> = (state) =>
diff --git a/src/selectors/profile.ts b/src/selectors/profile.ts
index d761943a3f..702413b70e 100644
--- a/src/selectors/profile.ts
+++ b/src/selectors/profile.ts
@@ -278,7 +278,7 @@ export const getMarkerSchemaByName: Selector<MarkerSchemaByName> =
 
 type CounterSelectors = ReturnType<typeof _createCounterSelectors>;
 
-const _counterSelectors: { [key: number]: CounterSelectors } = {};
+const _counterSelectors: Partial<Record<number, CounterSelectors>> = {};
 export const getCounterSelectors = (index: CounterIndex): CounterSelectors => {
   let selectors = _counterSelectors[index];
   if (!selectors) {
@@ -633,11 +633,6 @@ export const getTrackCount: Selector<TrackCount> = createSelector(
       if (globalTrackIndex === -1) {
         throw new Error('Unable to find a global track from the given pid.');
       }
-      if (!hiddenLocalTracks) {
-        throw new Error(
-          'Unable to find the hidden local tracks from the given pid'
-        );
-      }
 
       if (hiddenGlobalTracks.has(globalTrackIndex)) {
         // The entire process group is hidden, count all of the tracks.
@@ -809,10 +804,6 @@ export const getProfileFilterSortedPageData: Selector<SortedTabPageData> =
         }
         for (const threadIndex of threadIndexes.values()) {
           const threadScore = threadActivityScores[threadIndex];
-          if (!threadScore) {
-            throw new Error('Failed to find the thread score!');
-          }
-
           tabScore += threadScore.boostedSampleScore;
         }
         pageDataWithScore.push({
diff --git a/src/selectors/zipped-profiles.tsx b/src/selectors/zipped-profiles.tsx
index 3ed8cf16fb..c2c5f55005 100644
--- a/src/selectors/zipped-profiles.tsx
+++ b/src/selectors/zipped-profiles.tsx
@@ -74,10 +74,11 @@ export const getZipFileMaxDepth: Selector<number> = createSelector(
  * render a file picker to load profiles from the zip file.
  */
 export const getZipFileTreeOrNull: Selector<ZipFiles.ZipFileTree | null> =
-  createSelector(getZipFileTable, getProfileUrl, (zipFileTable, zipFileUrl) =>
-    zipFileTable === null
-      ? null
-      : new ZipFiles.ZipFileTree(zipFileTable, zipFileUrl)
+  createSelector(
+    getZipFileTable,
+    getProfileUrl,
+    (zipFileTable, zipFileUrl) =>
+      new ZipFiles.ZipFileTree(zipFileTable, zipFileUrl)
   );
 
 /**
diff --git a/src/symbolicator-cli/index.ts b/src/symbolicator-cli/index.ts
index 2e917c7a52..81fc760ba4 100644
--- a/src/symbolicator-cli/index.ts
+++ b/src/symbolicator-cli/index.ts
@@ -87,9 +87,6 @@ export async function run(options: CliOptions) {
 
   // Load the profile.
   const profile = await unserializeProfileOfArbitraryFormat(bytes);
-  if (profile === undefined) {
-    throw new Error('Unable to parse the profile.');
-  }
 
   const symbolStoreDB = new InMemorySymbolDB();
 
diff --git a/src/types/state.ts b/src/types/state.ts
index aa6956090a..433a59b5ee 100644
--- a/src/types/state.ts
+++ b/src/types/state.ts
@@ -72,7 +72,7 @@ export type TableViewOptions = {
   readonly fixedColumnWidths: Array<CssPixels> | null;
 };
 
-export type TableViewOptionsPerTab = { [K in TabSlug]: TableViewOptions };
+export type TableViewOptionsPerTab = Partial<Record<TabSlug, TableViewOptions>>;
 
 export type RightClickedCallNode = {
   readonly threadsKey: ThreadsKey;
@@ -185,7 +185,7 @@ export type AppState = {
   readonly sidebarOpenCategories: Map<string, Set<number>>;
   readonly panelLayoutGeneration: number;
   readonly lastVisibleThreadTabSlug: TabSlug;
-  readonly trackThreadHeights: Record<ThreadsKey, CssPixels>;
+  readonly trackThreadHeights: Partial<Record<ThreadsKey, CssPixels>>;
   readonly isNewlyPublished: boolean;
   readonly isDragAndDropDragging: boolean;
   readonly isDragAndDropOverlayRegistered: boolean;
diff --git a/src/types/transforms.ts b/src/types/transforms.ts
index 4487a0c4ab..5017bfe5ab 100644
--- a/src/types/transforms.ts
+++ b/src/types/transforms.ts
@@ -350,4 +350,6 @@ export type Transform = TransformDefinitions[keyof TransformDefinitions];
 export type TransformType = Transform['type'];
 
 export type TransformStack = Transform[];
-export type TransformStacksPerThread = { [key: ThreadsKey]: TransformStack };
+export type TransformStacksPerThread = Partial<
+  Record<ThreadsKey, TransformStack>
+>;
diff --git a/tsconfig.json b/tsconfig.json
index b8dab0ca32..28b14b261a 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -38,6 +38,6 @@
     // React & JSX
     "jsx": "react-jsx"
   },
-  "include": ["src/**/*.ts", "src/**/*.tsx"],
+  "include": ["src/**/*.ts", "src/**/*.tsx", "__mocks__/**/*.ts"],
   "exclude": ["node_modules", "dist"]
 }
diff --git a/yarn.lock b/yarn.lock
index b64dcc6fc7..71a0dd889f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1235,11 +1235,23 @@
   dependencies:
     eslint-visitor-keys "^3.4.3"
 
+"@eslint-community/eslint-utils@^4.9.1":
+  version "4.9.1"
+  resolved "https://registry.yarnpkg.com/@eslint-community/eslint-utils/-/eslint-utils-4.9.1.tgz#4e90af67bc51ddee6cdef5284edf572ec376b595"
+  integrity sha512-phrYmNiYppR7znFEdqgfWHXR6NCkZEK7hwWDHZUjit/2/U0r6XvkDl0SYnoM51Hq7FhCGdLDT6zxCCOY1hexsQ==
+  dependencies:
+    eslint-visitor-keys "^3.4.3"
+
 "@eslint-community/regexpp@^4.10.0", "@eslint-community/regexpp@^4.12.1":
   version "4.12.1"
   resolved "https://registry.yarnpkg.com/@eslint-community/regexpp/-/regexpp-4.12.1.tgz#cfc6cffe39df390a3841cde2abccf92eaa7ae0e0"
   integrity sha512-CCZCDJuduB9OUkFkY2IgppNZMi2lBQgD2qzwXkEia16cge2pijY/aXi96CJMquDMn3nJdlPV1A5KrJEXwfLNzQ==
 
+"@eslint-community/regexpp@^4.12.2":
+  version "4.12.2"
+  resolved "https://registry.yarnpkg.com/@eslint-community/regexpp/-/regexpp-4.12.2.tgz#bccdf615bcf7b6e8db830ec0b8d21c9a25de597b"
+  integrity sha512-EriSTlt5OC9/7SXkRSCAhfSxxoSUgBm33OH+IkwbdpgoqsSsUg7y3uh+IICI/Qg4BBWr3U2i39RpmycbxMq4ew==
+
 "@eslint/config-array@^0.21.1":
   version "0.21.1"
   resolved "https://registry.yarnpkg.com/@eslint/config-array/-/config-array-0.21.1.tgz#7d1b0060fea407f8301e932492ba8c18aff29713"
@@ -2514,6 +2526,20 @@
   dependencies:
     "@types/yargs-parser" "*"
 
+"@typescript-eslint/eslint-plugin@8.52.0":
+  version "8.52.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/eslint-plugin/-/eslint-plugin-8.52.0.tgz#9a9f1d2ee974ed77a8b1bda94e77123f697ee8b4"
+  integrity sha512-okqtOgqu2qmZJ5iN4TWlgfF171dZmx2FzdOv2K/ixL2LZWDStL8+JgQerI2sa8eAEfoydG9+0V96m7V+P8yE1Q==
+  dependencies:
+    "@eslint-community/regexpp" "^4.12.2"
+    "@typescript-eslint/scope-manager" "8.52.0"
+    "@typescript-eslint/type-utils" "8.52.0"
+    "@typescript-eslint/utils" "8.52.0"
+    "@typescript-eslint/visitor-keys" "8.52.0"
+    ignore "^7.0.5"
+    natural-compare "^1.4.0"
+    ts-api-utils "^2.4.0"
+
 "@typescript-eslint/eslint-plugin@^8.48.0":
   version "8.48.0"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/eslint-plugin/-/eslint-plugin-8.48.0.tgz#cdc9bdbe947713f658eb6109eeeea5d746824cf4"
@@ -2529,6 +2555,17 @@
     natural-compare "^1.4.0"
     ts-api-utils "^2.1.0"
 
+"@typescript-eslint/parser@8.52.0":
+  version "8.52.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/parser/-/parser-8.52.0.tgz#9fae9f5f13ebb1c8f31a50c34381bfd6bf96a05f"
+  integrity sha512-iIACsx8pxRnguSYhHiMn2PvhvfpopO9FXHyn1mG5txZIsAaB6F0KwbFnUQN3KCiG3Jcuad/Cao2FAs1Wp7vAyg==
+  dependencies:
+    "@typescript-eslint/scope-manager" "8.52.0"
+    "@typescript-eslint/types" "8.52.0"
+    "@typescript-eslint/typescript-estree" "8.52.0"
+    "@typescript-eslint/visitor-keys" "8.52.0"
+    debug "^4.4.3"
+
 "@typescript-eslint/parser@^8.48.0":
   version "8.48.0"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/parser/-/parser-8.48.0.tgz#fc39ea9b1c8b2414c1f4b625277629e12a940e6b"
@@ -2549,6 +2586,15 @@
     "@typescript-eslint/types" "^8.48.0"
     debug "^4.3.4"
 
+"@typescript-eslint/project-service@8.52.0":
+  version "8.52.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/project-service/-/project-service-8.52.0.tgz#5fb4c16af4eda6d74c70cbc62f5d3f77b96e4cbe"
+  integrity sha512-xD0MfdSdEmeFa3OmVqonHi+Cciab96ls1UhIF/qX/O/gPu5KXD0bY9lu33jj04fjzrXHcuvjBcBC+D3SNSadaw==
+  dependencies:
+    "@typescript-eslint/tsconfig-utils" "^8.52.0"
+    "@typescript-eslint/types" "^8.52.0"
+    debug "^4.4.3"
+
 "@typescript-eslint/scope-manager@8.48.0", "@typescript-eslint/scope-manager@^8.15.0":
   version "8.48.0"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/scope-manager/-/scope-manager-8.48.0.tgz#8306afdf409364d4e434813f0df9a8557ddff751"
@@ -2557,11 +2603,24 @@
     "@typescript-eslint/types" "8.48.0"
     "@typescript-eslint/visitor-keys" "8.48.0"
 
+"@typescript-eslint/scope-manager@8.52.0":
+  version "8.52.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/scope-manager/-/scope-manager-8.52.0.tgz#9884ff690fad30380ccabfb08af1ac200af6b4e5"
+  integrity sha512-ixxqmmCcc1Nf8S0mS0TkJ/3LKcC8mruYJPOU6Ia2F/zUUR4pApW7LzrpU3JmtePbRUTes9bEqRc1Gg4iyRnDzA==
+  dependencies:
+    "@typescript-eslint/types" "8.52.0"
+    "@typescript-eslint/visitor-keys" "8.52.0"
+
 "@typescript-eslint/tsconfig-utils@8.48.0", "@typescript-eslint/tsconfig-utils@^8.48.0":
   version "8.48.0"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/tsconfig-utils/-/tsconfig-utils-8.48.0.tgz#05cf091cd9f24a8e047783ff979136df6cf1be04"
   integrity sha512-WNebjBdFdyu10sR1M4OXTt2OkMd5KWIL+LLfeH9KhgP+jzfDV/LI3eXzwJ1s9+Yc0Kzo2fQCdY/OpdusCMmh6w==
 
+"@typescript-eslint/tsconfig-utils@8.52.0", "@typescript-eslint/tsconfig-utils@^8.52.0":
+  version "8.52.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/tsconfig-utils/-/tsconfig-utils-8.52.0.tgz#0296751c22ed05c83787a6eaec65ae221bd8b8ed"
+  integrity sha512-jl+8fzr/SdzdxWJznq5nvoI7qn2tNYV/ZBAEcaFMVXf+K6jmXvAFrgo/+5rxgnL152f//pDEAYAhhBAZGrVfwg==
+
 "@typescript-eslint/type-utils@8.48.0":
   version "8.48.0"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/type-utils/-/type-utils-8.48.0.tgz#eb4e0e60e545b448112f291b6652eeddb16db83f"
@@ -2573,11 +2632,27 @@
     debug "^4.3.4"
     ts-api-utils "^2.1.0"
 
+"@typescript-eslint/type-utils@8.52.0":
+  version "8.52.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/type-utils/-/type-utils-8.52.0.tgz#6e554113f8a074cf9b2faa818d2ebfccb867d6c5"
+  integrity sha512-JD3wKBRWglYRQkAtsyGz1AewDu3mTc7NtRjR/ceTyGoPqmdS5oCdx/oZMWD5Zuqmo6/MpsYs0wp6axNt88/2EQ==
+  dependencies:
+    "@typescript-eslint/types" "8.52.0"
+    "@typescript-eslint/typescript-estree" "8.52.0"
+    "@typescript-eslint/utils" "8.52.0"
+    debug "^4.4.3"
+    ts-api-utils "^2.4.0"
+
 "@typescript-eslint/types@8.48.0", "@typescript-eslint/types@^8.48.0":
   version "8.48.0"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/types/-/types-8.48.0.tgz#f0dc5cf27217346e9b0d90556911e01d90d0f2a5"
   integrity sha512-cQMcGQQH7kwKoVswD1xdOytxQR60MWKM1di26xSUtxehaDs/32Zpqsu5WJlXTtTTqyAVK8R7hvsUnIXRS+bjvA==
 
+"@typescript-eslint/types@8.52.0", "@typescript-eslint/types@^8.52.0":
+  version "8.52.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/types/-/types-8.52.0.tgz#1eb0a16b324824bc23b89d109a267c38c9213c4a"
+  integrity sha512-LWQV1V4q9V4cT4H5JCIx3481iIFxH1UkVk+ZkGGAV1ZGcjGI9IoFOfg3O6ywz8QqCDEp7Inlg6kovMofsNRaGg==
+
 "@typescript-eslint/typescript-estree@8.48.0":
   version "8.48.0"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/typescript-estree/-/typescript-estree-8.48.0.tgz#38b340524ce34ce0e46ca541a86cf6cad8872e5b"
@@ -2593,6 +2668,21 @@
     tinyglobby "^0.2.15"
     ts-api-utils "^2.1.0"
 
+"@typescript-eslint/typescript-estree@8.52.0":
+  version "8.52.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/typescript-estree/-/typescript-estree-8.52.0.tgz#2ad7721c671be2127951286cb7f44c4ce55b0591"
+  integrity sha512-XP3LClsCc0FsTK5/frGjolyADTh3QmsLp6nKd476xNI9CsSsLnmn4f0jrzNoAulmxlmNIpeXuHYeEQv61Q6qeQ==
+  dependencies:
+    "@typescript-eslint/project-service" "8.52.0"
+    "@typescript-eslint/tsconfig-utils" "8.52.0"
+    "@typescript-eslint/types" "8.52.0"
+    "@typescript-eslint/visitor-keys" "8.52.0"
+    debug "^4.4.3"
+    minimatch "^9.0.5"
+    semver "^7.7.3"
+    tinyglobby "^0.2.15"
+    ts-api-utils "^2.4.0"
+
 "@typescript-eslint/utils@8.48.0", "@typescript-eslint/utils@^8.0.0", "@typescript-eslint/utils@^8.15.0":
   version "8.48.0"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/utils/-/utils-8.48.0.tgz#c1196befb664f50be10692c781c7fc7624c1a5f9"
@@ -2603,6 +2693,16 @@
     "@typescript-eslint/types" "8.48.0"
     "@typescript-eslint/typescript-estree" "8.48.0"
 
+"@typescript-eslint/utils@8.52.0":
+  version "8.52.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/utils/-/utils-8.52.0.tgz#b249be8264899b80d996fa353b4b84da4662f962"
+  integrity sha512-wYndVMWkweqHpEpwPhwqE2lnD2DxC6WVLupU/DOt/0/v+/+iQbbzO3jOHjmBMnhu0DgLULvOaU4h4pwHYi2oRQ==
+  dependencies:
+    "@eslint-community/eslint-utils" "^4.9.1"
+    "@typescript-eslint/scope-manager" "8.52.0"
+    "@typescript-eslint/types" "8.52.0"
+    "@typescript-eslint/typescript-estree" "8.52.0"
+
 "@typescript-eslint/visitor-keys@8.48.0":
   version "8.48.0"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/visitor-keys/-/visitor-keys-8.48.0.tgz#6b07ef5661a85d08b01fbe4b8310a7311a6471af"
@@ -2611,6 +2711,14 @@
     "@typescript-eslint/types" "8.48.0"
     eslint-visitor-keys "^4.2.1"
 
+"@typescript-eslint/visitor-keys@8.52.0":
+  version "8.52.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/visitor-keys/-/visitor-keys-8.52.0.tgz#50361c48a6302676230fe498f80f6decce4bf673"
+  integrity sha512-ink3/Zofus34nmBsPjow63FP5M7IGff0RKAgqR6+CFpdk22M7aLwC9gOcLGYqr7MczLPzZVERW9hRog3O4n1sQ==
+  dependencies:
+    "@typescript-eslint/types" "8.52.0"
+    eslint-visitor-keys "^4.2.1"
+
 "@ungap/structured-clone@^1.3.0":
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/@ungap/structured-clone/-/structured-clone-1.3.0.tgz#d06bbb384ebcf6c505fde1c3d0ed4ddffe0aaff8"
@@ -9037,7 +9145,7 @@ minimatch@^8.0.2:
   dependencies:
     brace-expansion "^2.0.1"
 
-minimatch@^9.0.4:
+minimatch@^9.0.4, minimatch@^9.0.5:
   version "9.0.5"
   resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-9.0.5.tgz#d74f9dd6b57d83d8e98cfb82133b03978bc929e5"
   integrity sha512-G6T0ZX48xgozx7587koeX9Ys2NYy6Gmv//P89sEte9V9whIapMNF4idKxnW2QtCcLiTWlb/wfCabAtAFWhhBow==
@@ -11145,7 +11253,7 @@ semver@^6.0.0, semver@^6.3.1:
   resolved "https://registry.yarnpkg.com/semver/-/semver-6.3.1.tgz#556d2ef8689146e46dcea4bfdd095f3434dffcb4"
   integrity sha512-BR7VvDCVHO+q2xBEWskxS6DJE1qRnb7DxzUrogb71CWoSficBxYsiAGd+Kl0mmq/MprG9yArRkyrQxTO6XjMzA==
 
-semver@^7.3.4, semver@^7.3.5, semver@^7.3.7, semver@^7.5.3, semver@^7.5.4, semver@^7.6.0, semver@^7.6.2, semver@^7.6.3, semver@^7.7.2:
+semver@^7.3.4, semver@^7.3.5, semver@^7.3.7, semver@^7.5.3, semver@^7.5.4, semver@^7.6.0, semver@^7.6.2, semver@^7.6.3, semver@^7.7.2, semver@^7.7.3:
   version "7.7.3"
   resolved "https://registry.yarnpkg.com/semver/-/semver-7.7.3.tgz#4b5f4143d007633a8dc671cd0a6ef9147b8bb946"
   integrity sha512-SdsKMrI9TdgjdweUSR9MweHA4EJ8YxHn8DFaDisvhVlUOe4BF1tLD7GAj0lIqWVl+dPb/rExr0Btby5loQm20Q==
@@ -11577,7 +11685,16 @@ string-length@^4.0.2:
     char-regex "^1.0.2"
     strip-ansi "^6.0.0"
 
-"string-width-cjs@npm:string-width@^4.2.0", string-width@^4.1.0, string-width@^4.2.0, string-width@^4.2.3:
+"string-width-cjs@npm:string-width@^4.2.0":
+  version "4.2.3"
+  resolved "https://registry.yarnpkg.com/string-width/-/string-width-4.2.3.tgz#269c7117d27b05ad2e536830a8ec895ef9c6d010"
+  integrity sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==
+  dependencies:
+    emoji-regex "^8.0.0"
+    is-fullwidth-code-point "^3.0.0"
+    strip-ansi "^6.0.1"
+
+string-width@^4.1.0, string-width@^4.2.0, string-width@^4.2.3:
   version "4.2.3"
   resolved "https://registry.yarnpkg.com/string-width/-/string-width-4.2.3.tgz#269c7117d27b05ad2e536830a8ec895ef9c6d010"
   integrity sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==
@@ -11699,7 +11816,7 @@ stringify-object@^3.3.0:
     is-obj "^1.0.1"
     is-regexp "^1.0.0"
 
-"strip-ansi-cjs@npm:strip-ansi@^6.0.1", strip-ansi@^6.0.0, strip-ansi@^6.0.1:
+"strip-ansi-cjs@npm:strip-ansi@^6.0.1":
   version "6.0.1"
   resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-6.0.1.tgz#9e26c63d30f53443e9489495b2105d37b67a85d9"
   integrity sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==
@@ -11713,6 +11830,13 @@ strip-ansi@^0.3.0:
   dependencies:
     ansi-regex "^0.2.1"
 
+strip-ansi@^6.0.0, strip-ansi@^6.0.1:
+  version "6.0.1"
+  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-6.0.1.tgz#9e26c63d30f53443e9489495b2105d37b67a85d9"
+  integrity sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==
+  dependencies:
+    ansi-regex "^5.0.1"
+
 strip-ansi@^7.0.1, strip-ansi@^7.1.0:
   version "7.1.0"
   resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-7.1.0.tgz#d5b6568ca689d8561370b0707685d22434faff45"
@@ -12159,6 +12283,11 @@ ts-api-utils@^2.1.0:
   resolved "https://registry.yarnpkg.com/ts-api-utils/-/ts-api-utils-2.1.0.tgz#595f7094e46eed364c13fd23e75f9513d29baf91"
   integrity sha512-CUgTZL1irw8u29bzrOD/nH85jqyc74D6SshFgujOIA7osm2Rz7dYH77agkx7H4FBNxDq7Cjf+IjaX/8zwFW+ZQ==
 
+ts-api-utils@^2.4.0:
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/ts-api-utils/-/ts-api-utils-2.4.0.tgz#2690579f96d2790253bdcf1ca35d569ad78f9ad8"
+  integrity sha512-3TaVTaAv2gTiMB35i3FiGJaRfwb3Pyn/j3m/bfAvGe8FB7CF6u+LMYqYlDh7reQf7UNvoTvdfAqHGmPGOSsPmA==
+
 tsconfig-paths@^3.15.0:
   version "3.15.0"
   resolved "https://registry.yarnpkg.com/tsconfig-paths/-/tsconfig-paths-3.15.0.tgz#5299ec605e55b1abb23ec939ef15edaf483070d4"
@@ -12311,6 +12440,16 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha512-/aCDEGatGvZ2BIk+HmLf4ifCJFwvKFNb9/JeZPMulfgFracn9QFcAf5GO8B/mweUjSoblS5In0cWhqpfs/5PQA==
 
+typescript-eslint@^8.52.0:
+  version "8.52.0"
+  resolved "https://registry.yarnpkg.com/typescript-eslint/-/typescript-eslint-8.52.0.tgz#b8c156b6f2b4dee202a85712ff6a37f614476413"
+  integrity sha512-atlQQJ2YkO4pfTVQmQ+wvYQwexPDOIgo+RaVcD7gHgzy/IQA+XTyuxNM9M9TVXvttkF7koBHmcwisKdOAf2EcA==
+  dependencies:
+    "@typescript-eslint/eslint-plugin" "8.52.0"
+    "@typescript-eslint/parser" "8.52.0"
+    "@typescript-eslint/typescript-estree" "8.52.0"
+    "@typescript-eslint/utils" "8.52.0"
+
 typescript@^5.9.3:
   version "5.9.3"
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.9.3.tgz#5b4f59e15310ab17a216f5d6cf53ee476ede670f"
@@ -13275,7 +13414,16 @@ workbox-window@7.4.0, workbox-window@^7.4.0:
     "@types/trusted-types" "^2.0.2"
     workbox-core "7.4.0"
 
-"wrap-ansi-cjs@npm:wrap-ansi@^7.0.0", wrap-ansi@^7.0.0:
+"wrap-ansi-cjs@npm:wrap-ansi@^7.0.0":
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-7.0.0.tgz#67e145cff510a6a6984bdf1152911d69d2eb9e43"
+  integrity sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==
+  dependencies:
+    ansi-styles "^4.0.0"
+    string-width "^4.1.0"
+    strip-ansi "^6.0.0"
+
+wrap-ansi@^7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-7.0.0.tgz#67e145cff510a6a6984bdf1152911d69d2eb9e43"
   integrity sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==