diff --git a/src/App.tsx b/src/App.tsx
index 381b81b..aea7230 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -18,7 +18,7 @@ import type { RenderingEvent } from './core/audio-interface/KGOfflineRenderer';
 import { KGCore } from './core/KGCore';
 import { ConfigManager } from './core/config/ConfigManager';
 import { validateFunctionalChordsJSON } from './util/scaleUtil';
-import { showAlert } from './components/common/DialogProvider';
+import { showAlert } from './util/dialogUtil';
 import { KGProjectStorage } from './core/io/KGProjectStorage';
 import { RESERVED_PROJECT_NAME } from './util/projectNameUtil';
 
diff --git a/src/components/KGOnePanel.tsx b/src/components/KGOnePanel.tsx
index ffecc44..d53dbd2 100644
--- a/src/components/KGOnePanel.tsx
+++ b/src/components/KGOnePanel.tsx
@@ -14,7 +14,7 @@ import { sliceAudioToWav } from '../util/audioUtil';
 import type { KeySignature } from '../core/KGProject';
 import { ImportStemsCommand } from '../core/commands';
 import type { StemImportEntry } from '../core/commands';
-import { showAlert } from './common/DialogProvider';
+import { showAlert } from '../util/dialogUtil';
 
 // ─── Types ────────────────────────────────────────────────────────────────────
 
diff --git a/src/components/Toolbar.tsx b/src/components/Toolbar.tsx
index b4b0a44..ca5d52f 100644
--- a/src/components/Toolbar.tsx
+++ b/src/components/Toolbar.tsx
@@ -33,7 +33,7 @@ import { clearChatHistoryAndUI } from '../util/chatUtil';
 import PianoIcon from './common/icons/PianoIcon';
 import MetronomeIcon from './common/icons/MetronomeIcon';
 import { ConfigManager } from '../core/config/ConfigManager';
-import { showAlert, showConfirm, showPrompt, showTimeSigPrompt } from './common/DialogProvider';
+import { showAlert, showConfirm, showPrompt, showTimeSigPrompt } from '../util/dialogUtil';
 
 const Toolbar: React.FC = () => {
   const {
diff --git a/src/components/common/DialogProvider.tsx b/src/components/common/DialogProvider.tsx
index 5e18460..eadeffb 100644
--- a/src/components/common/DialogProvider.tsx
+++ b/src/components/common/DialogProvider.tsx
@@ -1,60 +1,8 @@
 import React, { useState, useCallback, useRef } from 'react';
 import './DialogProvider.css';
 import { FaTimes } from 'react-icons/fa';
-
-export interface ConfirmOptions {
-  confirmLabel?: string;
-  cancelLabel?: string;
-}
-
-export interface PromptOptions {
-  confirmLabel?: string;
-  cancelLabel?: string;
-  placeholder?: string;
-}
-
-export interface TimeSigResult {
-  numerator: number;
-  denominator: number;
-}
-
-let _showAlertFn: ((message: string) => Promise<void>) | null = null;
-let _showConfirmFn: ((message: string, options?: ConfirmOptions) => Promise<boolean>) | null = null;
-let _showPromptFn: ((message: string, defaultValue?: string, options?: PromptOptions) => Promise<string | null>) | null = null;
-let _showTimeSigFn: ((message: string, defaultValue?: TimeSigResult) => Promise<TimeSigResult | null>) | null = null;
-
-export function showAlert(message: string): Promise<void> {
-  if (!_showAlertFn) {
-    window.alert(message);
-    return Promise.resolve();
-  }
-  return _showAlertFn(message);
-}
-
-export function showConfirm(message: string, options?: ConfirmOptions): Promise<boolean> {
-  if (!_showConfirmFn) {
-    return Promise.resolve(window.confirm(message));
-  }
-  return _showConfirmFn(message, options);
-}
-
-export function showPrompt(message: string, defaultValue?: string, options?: PromptOptions): Promise<string | null> {
-  if (!_showPromptFn) {
-    return Promise.resolve(window.prompt(message, defaultValue));
-  }
-  return _showPromptFn(message, defaultValue, options);
-}
-
-export function showTimeSigPrompt(message: string, defaultValue?: TimeSigResult): Promise<TimeSigResult | null> {
-  if (!_showTimeSigFn) {
-    const raw = window.prompt(message, defaultValue ? `${defaultValue.numerator}/${defaultValue.denominator}` : '4/4');
-    if (!raw) return Promise.resolve(null);
-    const [n, d] = raw.split('/').map(Number);
-    if (!n || !d) return Promise.resolve(null);
-    return Promise.resolve({ numerator: n, denominator: d });
-  }
-  return _showTimeSigFn(message, defaultValue);
-}
+import { registerDialogFns } from '../../util/dialogUtil';
+import type { ConfirmOptions, PromptOptions, TimeSigResult } from '../../util/dialogUtil';
 
 interface DialogInfo {
   type: 'alert' | 'confirm' | 'prompt' | 'timesig';
@@ -129,10 +77,7 @@ const DialogProvider: React.FC<{ children: React.ReactNode }> = ({ children }) =
   const registered = useRef(false);
   if (!registered.current) {
     registered.current = true;
-    _showAlertFn = openAlert;
-    _showConfirmFn = openConfirm;
-    _showPromptFn = openPrompt;
-    _showTimeSigFn = openTimeSig;
+    registerDialogFns(openAlert, openConfirm, openPrompt, openTimeSig);
   }
 
   if (!dialog) {
diff --git a/src/components/common/FileImportModal.tsx b/src/components/common/FileImportModal.tsx
index c5fddf3..bffecf2 100644
--- a/src/components/common/FileImportModal.tsx
+++ b/src/components/common/FileImportModal.tsx
@@ -1,7 +1,7 @@
 import React, { useCallback, useRef, useState } from 'react';
 import './FileImportModal.css';
 import { FaTimes } from 'react-icons/fa';
-import { showAlert } from './DialogProvider';
+import { showAlert } from '../../util/dialogUtil';
 
 interface FileImportModalProps {
   isVisible: boolean;
diff --git a/src/components/common/OpenProjectModal.tsx b/src/components/common/OpenProjectModal.tsx
index 099103a..0308a39 100644
--- a/src/components/common/OpenProjectModal.tsx
+++ b/src/components/common/OpenProjectModal.tsx
@@ -3,7 +3,7 @@ import { FaTimes, FaSortUp, FaSortDown, FaCopy, FaTrash, FaUndo } from 'react-ic
 import { KGProjectStorage, type ProjectMeta } from '../../core/io/KGProjectStorage';
 import { isValidProjectName } from '../../util/projectNameUtil';
 import './OpenProjectModal.css';
-import { showAlert, showConfirm, showPrompt } from './DialogProvider';
+import { showAlert, showConfirm, showPrompt } from '../../util/dialogUtil';
 
 interface OpenProjectModalProps {
   onClose: () => void;
diff --git a/src/components/common/index.ts b/src/components/common/index.ts
index 4dd4446..9fafde9 100644
--- a/src/components/common/index.ts
+++ b/src/components/common/index.ts
@@ -3,5 +3,6 @@ export { default as Playhead } from './Playhead';
 export { default as FileImportModal } from './FileImportModal'; 
 export { default as LoadingOverlay } from './LoadingOverlay';
 export { default as OpenProjectModal } from './OpenProjectModal';
-export { default as DialogProvider, showAlert, showConfirm, showPrompt, showTimeSigPrompt } from './DialogProvider';
-export type { ConfirmOptions, PromptOptions, TimeSigResult } from './DialogProvider';
\ No newline at end of file
+export { default as DialogProvider } from './DialogProvider';
+export { showAlert, showConfirm, showPrompt, showTimeSigPrompt } from '../../util/dialogUtil';
+export type { ConfirmOptions, PromptOptions, TimeSigResult } from '../../util/dialogUtil';
\ No newline at end of file
diff --git a/src/components/piano-roll/PianoRoll.tsx b/src/components/piano-roll/PianoRoll.tsx
index 524afc8..2fe27a5 100644
--- a/src/components/piano-roll/PianoRoll.tsx
+++ b/src/components/piano-roll/PianoRoll.tsx
@@ -15,7 +15,7 @@ import { ConfigManager } from '../../core/config/ConfigManager';
 import { beatsToBar } from '../../util/midiUtil';
 import { UpdateRegionCommand } from '../../core/commands';
 import { getSuitableChords, noteNameToPitchClass } from '../../util/scaleUtil';
-import { showAlert, showPrompt } from '../common/DialogProvider';
+import { showAlert, showPrompt } from '../../util/dialogUtil';
 
 interface PianoRollProps {
   onClose: () => void;
diff --git a/src/components/settings/sections/ChordGuideSettings.tsx b/src/components/settings/sections/ChordGuideSettings.tsx
index 2f8c2c5..69ca7b5 100644
--- a/src/components/settings/sections/ChordGuideSettings.tsx
+++ b/src/components/settings/sections/ChordGuideSettings.tsx
@@ -2,7 +2,7 @@ import React, { useState, useEffect, useCallback } from 'react';
 import { ConfigManager } from '../../../core/config/ConfigManager';
 import { validateFunctionalChordsJSON } from '../../../util/scaleUtil';
 import { KGCore } from '../../../core/KGCore';
-import { showAlert } from '../../common/DialogProvider';
+import { showAlert } from '../../../util/dialogUtil';
 
 const ChordGuideSettings: React.FC = () => {
   const [chordDefinition, setChordDefinition] = useState<string>('');
diff --git a/src/components/track/TrackGridPanel.tsx b/src/components/track/TrackGridPanel.tsx
index 560ed16..da64b29 100644
--- a/src/components/track/TrackGridPanel.tsx
+++ b/src/components/track/TrackGridPanel.tsx
@@ -13,7 +13,7 @@ import { KGAudioInterface } from '../../core/audio-interface/KGAudioInterface';
 import { KGAudioRegion } from '../../core/region/KGAudioRegion';
 import { generateNewRegionName } from '../../util/miscUtil';
 import { KGAudioFileStorage } from '../../core/io/KGAudioFileStorage';
-import { showAlert } from '../common/DialogProvider';
+import { showAlert } from '../../util/dialogUtil';
 import { parseMidiFirstTrackNotes } from '../../util/midiUtil';
 import * as Tone from 'tone';
 
diff --git a/src/components/track/TrackInfoItem.tsx b/src/components/track/TrackInfoItem.tsx
index f03b95f..7cf9cc3 100644
--- a/src/components/track/TrackInfoItem.tsx
+++ b/src/components/track/TrackInfoItem.tsx
@@ -12,7 +12,7 @@ import { FLUIDR3_INSTRUMENT_MAP } from '../../constants/generalMidiConstants';
 import { DEBUG_MODE } from '../../constants/uiConstants';
 import { KGAudioInterface } from '../../core/audio-interface/KGAudioInterface';
 import { AUDIO_INTERFACE_CONSTANTS } from '../../constants/coreConstants';
-import { showAlert, showConfirm, showPrompt } from '../common/DialogProvider';
+import { showAlert, showConfirm, showPrompt } from '../../util/dialogUtil';
 
 const UNITY_POS = 750;
 const SLIDER_MAX = 1000;
diff --git a/src/core/KGDebugger.ts b/src/core/KGDebugger.ts
index a80ee13..e32d302 100644
--- a/src/core/KGDebugger.ts
+++ b/src/core/KGDebugger.ts
@@ -513,8 +513,7 @@ export class KGDebugger {
 
         try {
           textarea.selectionStart = textarea.selectionEnd = typed.length;
-        } catch {
-        }
+        } catch { /* setting cursor position can fail in read-only or special inputs */ }
 
         textarea.scrollTop = textarea.scrollHeight;
 
@@ -583,8 +582,7 @@ export class KGDebugger {
 
         try {
           textarea.selectionStart = textarea.selectionEnd = typed.length;
-        } catch {
-        }
+        } catch { /* setting cursor position can fail in read-only or special inputs */ }
 
         textarea.scrollTop = textarea.scrollHeight;
 
diff --git a/src/core/config-upgrader/upgradeConfigToV1.test.ts b/src/core/config-upgrader/upgradeConfigToV1.test.ts
index cc99d2f..190addd 100644
--- a/src/core/config-upgrader/upgradeConfigToV1.test.ts
+++ b/src/core/config-upgrader/upgradeConfigToV1.test.ts
@@ -47,9 +47,8 @@ class MockFileHandle {
   async getFile() { return { text: () => Promise.resolve(this._content) }; }
   async createWritable() {
     const w = new MockWritable();
-    const self = this;
     const origClose = w.close.bind(w);
-    w.close = async () => { self._content = w.data; await origClose(); };
+    w.close = async () => { this._content = w.data; await origClose(); };
     return w;
   }
 }
diff --git a/src/core/io/KGProjectStorage.test.ts b/src/core/io/KGProjectStorage.test.ts
index 3ded8e9..85b382f 100644
--- a/src/core/io/KGProjectStorage.test.ts
+++ b/src/core/io/KGProjectStorage.test.ts
@@ -19,10 +19,9 @@ class MockFileSystemFileHandle {
   async createWritable() {
     const stream = new MockFileSystemWritableFileStream();
     // When stream closes, update our content
-    const self = this;
     const origClose = stream.close.bind(stream);
     stream.close = async () => {
-      self._content = stream.data;
+      this._content = stream.data;
       await origClose();
     };
     return stream;
diff --git a/src/test/mocks/indexed-db.ts b/src/test/mocks/indexed-db.ts
index 606a102..3e631a0 100644
--- a/src/test/mocks/indexed-db.ts
+++ b/src/test/mocks/indexed-db.ts
@@ -5,11 +5,13 @@
 import { vi } from 'vitest';
 
 // In-memory storage for tests
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
 const mockStorage = new Map<string, any>();
 
 export const mockIndexedDB = {
   openDB: vi.fn().mockImplementation(() => {
     return Promise.resolve({
+      // eslint-disable-next-line @typescript-eslint/no-explicit-any
       put: vi.fn().mockImplementation((storeName: string, data: any, key?: string) => {
         const actualKey = key || data.id || 'default';
         mockStorage.set(`${storeName}:${actualKey}`, data);
@@ -21,6 +23,7 @@ export const mockIndexedDB = {
       }),
       
       getAll: vi.fn().mockImplementation((storeName: string) => {
+        // eslint-disable-next-line @typescript-eslint/no-explicit-any
         const results: any[] = [];
         for (const [key, value] of mockStorage.entries()) {
           if (key.startsWith(`${storeName}:`)) {
diff --git a/src/util/dialogUtil.ts b/src/util/dialogUtil.ts
new file mode 100644
index 0000000..c9b84a8
--- /dev/null
+++ b/src/util/dialogUtil.ts
@@ -0,0 +1,65 @@
+export interface ConfirmOptions {
+  confirmLabel?: string;
+  cancelLabel?: string;
+}
+
+export interface PromptOptions {
+  confirmLabel?: string;
+  cancelLabel?: string;
+  placeholder?: string;
+}
+
+export interface TimeSigResult {
+  numerator: number;
+  denominator: number;
+}
+
+let _showAlertFn: ((message: string) => Promise<void>) | null = null;
+let _showConfirmFn: ((message: string, options?: ConfirmOptions) => Promise<boolean>) | null = null;
+let _showPromptFn: ((message: string, defaultValue?: string, options?: PromptOptions) => Promise<string | null>) | null = null;
+let _showTimeSigFn: ((message: string, defaultValue?: TimeSigResult) => Promise<TimeSigResult | null>) | null = null;
+
+export function registerDialogFns(
+  alertFn: (message: string) => Promise<void>,
+  confirmFn: (message: string, options?: ConfirmOptions) => Promise<boolean>,
+  promptFn: (message: string, defaultValue?: string, options?: PromptOptions) => Promise<string | null>,
+  timeSigFn: (message: string, defaultValue?: TimeSigResult) => Promise<TimeSigResult | null>,
+) {
+  _showAlertFn = alertFn;
+  _showConfirmFn = confirmFn;
+  _showPromptFn = promptFn;
+  _showTimeSigFn = timeSigFn;
+}
+
+export function showAlert(message: string): Promise<void> {
+  if (!_showAlertFn) {
+    window.alert(message);
+    return Promise.resolve();
+  }
+  return _showAlertFn(message);
+}
+
+export function showConfirm(message: string, options?: ConfirmOptions): Promise<boolean> {
+  if (!_showConfirmFn) {
+    return Promise.resolve(window.confirm(message));
+  }
+  return _showConfirmFn(message, options);
+}
+
+export function showPrompt(message: string, defaultValue?: string, options?: PromptOptions): Promise<string | null> {
+  if (!_showPromptFn) {
+    return Promise.resolve(window.prompt(message, defaultValue));
+  }
+  return _showPromptFn(message, defaultValue, options);
+}
+
+export function showTimeSigPrompt(message: string, defaultValue?: TimeSigResult): Promise<TimeSigResult | null> {
+  if (!_showTimeSigFn) {
+    const raw = window.prompt(message, defaultValue ? `${defaultValue.numerator}/${defaultValue.denominator}` : '4/4');
+    if (!raw) return Promise.resolve(null);
+    const [n, d] = raw.split('/').map(Number);
+    if (!n || !d) return Promise.resolve(null);
+    return Promise.resolve({ numerator: n, denominator: d });
+  }
+  return _showTimeSigFn(message, defaultValue);
+}
diff --git a/src/util/saveUtil.ts b/src/util/saveUtil.ts
index 690db4c..9114669 100644
--- a/src/util/saveUtil.ts
+++ b/src/util/saveUtil.ts
@@ -1,7 +1,7 @@
 import { KGProjectStorage } from '../core/io/KGProjectStorage';
 import { KGCore } from '../core/KGCore';
 import { RESERVED_PROJECT_NAME } from './projectNameUtil';
-import { showAlert } from '../components/common/DialogProvider';
+import { showAlert } from './dialogUtil';
 
 /**
  * Save project utility function.
diff --git a/src/util/xmlUtil.test.ts b/src/util/xmlUtil.test.ts
index 03f5d31..1b909a4 100644
--- a/src/util/xmlUtil.test.ts
+++ b/src/util/xmlUtil.test.ts
@@ -214,8 +214,8 @@ describe('xmlUtil', () => {
 
     it('should handle empty input', () => {
       expect(wrapXmlBlocksInContent('')).toBe('');
-      expect(wrapXmlBlocksInContent(null as any)).toBeNull();
-      expect(wrapXmlBlocksInContent(undefined as any)).toBeUndefined();
+      expect(wrapXmlBlocksInContent(null as unknown as string)).toBeNull();
+      expect(wrapXmlBlocksInContent(undefined as unknown as string)).toBeUndefined();
     });
 
     it('should wrap XML blocks from multipleXmlBlocks fixture', () => {