diff --git a/app/main/project/optimizeImageImport.lib.mjs b/app/main/project/optimizeImageImport.lib.mjs
index bbbb393..cb10a48 100644
--- a/app/main/project/optimizeImageImport.lib.mjs
+++ b/app/main/project/optimizeImageImport.lib.mjs
@@ -2,7 +2,7 @@
  * Visually lossless re-encode for imported raster images (same pixel dimensions).
  * Node-only; shared by the main app and ../project-converter (monorepo sibling).
  */
-import sharp from 'sharp';
+import { getSharp } from './sharpRuntime.mjs';
 
 /** @typedef {import('node:buffer').Buffer} Buffer */
 
@@ -102,6 +102,7 @@ function makePassthrough(buf, meta) {
  * @param {number} h0
  */
 async function sameDimensionsOrThrow(outBuf, w0, h0) {
+  const sharp = getSharp();
   const m = await sharp(outBuf).metadata();
   if ((m.width ?? 0) !== w0 || (m.height ?? 0) !== h0) {
     const err = new Error('encode changed dimensions');
@@ -120,6 +121,13 @@ export async function optimizeImageBufferVisuallyLossless(src) {
     return makePassthrough(input, { width: 0, height: 0, format: 'png' });
   }
 
+  let sharp;
+  try {
+    sharp = getSharp();
+  } catch {
+    return makePassthrough(input, null);
+  }
+
   let meta0;
   try {
     meta0 = await sharp(input, { failOn: 'error', unlimited: true }).metadata();
diff --git a/app/main/project/scenePreviewThumbnail.ts b/app/main/project/scenePreviewThumbnail.ts
index b075548..76832f1 100644
--- a/app/main/project/scenePreviewThumbnail.ts
+++ b/app/main/project/scenePreviewThumbnail.ts
@@ -5,7 +5,8 @@ import path from 'node:path';
 import { promisify } from 'node:util';
 
 import ffmpegStatic from 'ffmpeg-static';
-import sharp from 'sharp';
+
+import { getSharp } from './sharpRuntime.mjs';
 
 const execFileAsync = promisify(execFile);
 
@@ -21,6 +22,7 @@ export async function generateScenePreviewThumbnailBytes(
   kind: 'image' | 'video',
 ): Promise<Buffer | null> {
   try {
+    const sharp = getSharp();
     if (kind === 'image') {
       return await sharp(source)
         .rotate()
diff --git a/app/main/project/sharpRuntime.mjs b/app/main/project/sharpRuntime.mjs
new file mode 100644
index 0000000..cd5e9a0
--- /dev/null
+++ b/app/main/project/sharpRuntime.mjs
@@ -0,0 +1,51 @@
+/**
+ * Lazy `sharp` load so a corrupt/missing native install does not crash Electron at import time.
+ * Call only from image-processing paths; errors are recoverable for the rest of the app.
+ */
+import { createRequire } from 'node:module';
+
+const require = createRequire(import.meta.url);
+
+/** @type {typeof import('sharp') | null} */
+let cached = null;
+/** @type {Error | null} */
+let loadError = null;
+
+/**
+ * @param {unknown} err
+ * @returns {Error}
+ */
+export function sharpLoadFailure(err) {
+  const detail = err instanceof Error ? err.message : String(err);
+  return new Error(
+    [
+      'Не удалось загрузить модуль обработки изображений (sharp).',
+      'Переустановите приложение полностью (удалите и поставьте заново)',
+      'или исключите папку установки из проверки антивируса.',
+      detail ? `Детали: ${detail}` : '',
+    ]
+      .filter(Boolean)
+      .join(' '),
+  );
+}
+
+/**
+ * @returns {typeof import('sharp')}
+ */
+export function getSharp() {
+  if (cached) return cached;
+  if (loadError) throw loadError;
+  try {
+    cached = require('sharp');
+    return cached;
+  } catch (err) {
+    loadError = sharpLoadFailure(err);
+    throw loadError;
+  }
+}
+
+/** Reset cache (tests only). */
+export function __resetSharpRuntimeForTests() {
+  cached = null;
+  loadError = null;
+}
diff --git a/app/main/project/sharpRuntime.test.mjs b/app/main/project/sharpRuntime.test.mjs
new file mode 100644
index 0000000..180241c
--- /dev/null
+++ b/app/main/project/sharpRuntime.test.mjs
@@ -0,0 +1,20 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+
+import {
+  __resetSharpRuntimeForTests,
+  getSharp,
+  sharpLoadFailure,
+} from './sharpRuntime.mjs';
+
+void test('getSharp: loads sharp when install is healthy', () => {
+  __resetSharpRuntimeForTests();
+  const sharp = getSharp();
+  assert.equal(typeof sharp, 'function');
+});
+
+void test('sharpLoadFailure: includes reinstall hint', () => {
+  const err = sharpLoadFailure(new Error('SyntaxError: Unexpected end of input'));
+  assert.match(err.message, /переустановите/i);
+  assert.match(err.message, /SyntaxError/);
+});
diff --git a/package.json b/package.json
index 1409bf2..6ba3ac1 100644
--- a/package.json
+++ b/package.json
@@ -10,15 +10,15 @@
     "build:obfuscate": "node scripts/build.mjs --production --obfuscate",
     "lint": "eslint . --max-warnings 0",
     "typecheck": "tsc -p tsconfig.eslint.json --noEmit",
-    "test": "tsx --test app/renderer/shared/ui/controls.tooltip.test.ts app/renderer/shared/ui/secondaryWindows.stability.test.ts app/renderer/npcs/tiptapEditorSafe.test.ts app/renderer/editor/state/projectState.race.test.ts app/renderer/editor/fileDrop.test.ts app/shared/graph/sceneListOrder.test.ts app/renderer/editor/graph/sceneCardById.test.ts app/renderer/editor/i18n/editorMessages.locale.test.ts app/renderer/editor/help/helpLinkify.test.ts app/renderer/editor/sceneDescriptionHtml.test.ts app/shared/graph/storylineExportImport.test.ts app/shared/foundry/foundryGraph.test.ts app/shared/ipc/contracts.mediaRemoval.test.ts app/shared/effectEraserHitTest.test.ts app/shared/fieldEffectEraser.test.ts app/renderer/control/controlApp.effectsPanel.test.ts app/renderer/control/controlApp.audioPerf.networkRegression.test.ts app/renderer/control/controlApp.brushPerf.networkRegression.test.ts app/renderer/shared/useAssetImageUrl.cache.test.ts app/main/sessionIpc.phase6.networkRegression.test.ts app/renderer/shared/sceneOverlay/sceneOverlayHost.test.ts app/renderer/shared/effects/PxiEffectsOverlay.pointer.test.ts app/renderer/shared/traps/trapActivation.test.ts app/main/windows/createWindows.editorClose.test.ts app/main/safeConsole.test.ts app/main/windows/bootWindow.test.ts app/main/effects/effectsStore.test.ts app/main/effects/sceneDarknessStore.test.ts app/main/sceneTraps/sceneTrapsStore.test.ts app/main/project/assetPrune.test.ts app/main/project/optimizeImageImport.test.ts app/main/project/scenePreviewThumbnail.test.ts app/main/project/fsRetry.test.ts app/main/project/zipRead.test.ts app/main/project/replaceFileAtomic.test.ts app/main/project/zipStore.legacyContract.test.ts app/shared/package.build.test.ts app/shared/license/canonicalJson.test.ts app/shared/license/productKey.test.ts app/shared/license/licenseService.networkRegression.test.ts app/shared/video/videoPlaybackPerf.networkRegression.test.ts app/shared/video/videoPlaybackLoop.networkRegression.test.ts app/main/license/verifyLicenseToken.test.ts app/main/license/machineFingerprint.test.ts app/shared/types/appPlayers.test.ts app/shared/types/npcDisposition.test.ts app/shared/types/sceneGrid.test.ts app/shared/types/sceneGridSnap.test.ts app/main/tokens/tokenGridSnapSessionStore.test.ts app/shared/players/playerTeams.test.ts app/shared/players/launchPlayersSelection.test.ts app/main/players/playersStore.test.ts app/main/players/sceneNpcTokensSessionStore.test.ts app/main/players/scenePlayerTokensSessionStore.test.ts app/shared/ipc/contracts.players.test.ts && node --test scripts/build-env.test.mjs scripts/obfuscate-main.test.mjs scripts/release-mac-prep.test.mjs scripts/release-native-prep.test.mjs",
+    "test": "tsx --test app/renderer/shared/ui/controls.tooltip.test.ts app/renderer/shared/ui/secondaryWindows.stability.test.ts app/renderer/npcs/tiptapEditorSafe.test.ts app/renderer/editor/state/projectState.race.test.ts app/renderer/editor/fileDrop.test.ts app/shared/graph/sceneListOrder.test.ts app/renderer/editor/graph/sceneCardById.test.ts app/renderer/editor/i18n/editorMessages.locale.test.ts app/renderer/editor/help/helpLinkify.test.ts app/renderer/editor/sceneDescriptionHtml.test.ts app/shared/graph/storylineExportImport.test.ts app/shared/foundry/foundryGraph.test.ts app/shared/ipc/contracts.mediaRemoval.test.ts app/shared/effectEraserHitTest.test.ts app/shared/fieldEffectEraser.test.ts app/renderer/control/controlApp.effectsPanel.test.ts app/renderer/control/controlApp.audioPerf.networkRegression.test.ts app/renderer/control/controlApp.brushPerf.networkRegression.test.ts app/renderer/shared/useAssetImageUrl.cache.test.ts app/main/sessionIpc.phase6.networkRegression.test.ts app/renderer/shared/sceneOverlay/sceneOverlayHost.test.ts app/renderer/shared/effects/PxiEffectsOverlay.pointer.test.ts app/renderer/shared/traps/trapActivation.test.ts app/main/windows/createWindows.editorClose.test.ts app/main/safeConsole.test.ts app/main/windows/bootWindow.test.ts app/main/effects/effectsStore.test.ts app/main/effects/sceneDarknessStore.test.ts app/main/sceneTraps/sceneTrapsStore.test.ts app/main/project/assetPrune.test.ts app/main/project/optimizeImageImport.test.ts app/main/project/scenePreviewThumbnail.test.ts app/main/project/fsRetry.test.ts app/main/project/zipRead.test.ts app/main/project/replaceFileAtomic.test.ts app/main/project/zipStore.legacyContract.test.ts app/shared/package.build.test.ts app/shared/license/canonicalJson.test.ts app/shared/license/productKey.test.ts app/shared/license/licenseService.networkRegression.test.ts app/shared/video/videoPlaybackPerf.networkRegression.test.ts app/shared/video/videoPlaybackLoop.networkRegression.test.ts app/main/license/verifyLicenseToken.test.ts app/main/license/machineFingerprint.test.ts app/shared/types/appPlayers.test.ts app/shared/types/npcDisposition.test.ts app/shared/types/sceneGrid.test.ts app/shared/types/sceneGridSnap.test.ts app/main/tokens/tokenGridSnapSessionStore.test.ts app/shared/players/playerTeams.test.ts app/shared/players/launchPlayersSelection.test.ts app/main/players/playersStore.test.ts app/main/players/sceneNpcTokensSessionStore.test.ts app/main/players/scenePlayerTokensSessionStore.test.ts app/shared/ipc/contracts.players.test.ts && node --test scripts/build-env.test.mjs scripts/obfuscate-main.test.mjs scripts/release-mac-prep.test.mjs scripts/release-native-prep.test.mjs scripts/verify-packaged-sharp.test.mjs app/main/project/sharpRuntime.test.mjs",
     "format": "prettier . --check",
     "format:write": "prettier . --write",
     "postinstall": "patch-package",
     "release:info": "node scripts/print-release-info.mjs",
-    "pack": "npm run build && node scripts/release-win-prep.mjs && electron-builder",
-    "pack:dir": "npm run build && node scripts/release-win-prep.mjs && electron-builder --dir",
-    "pack:mac": "npm run build && node scripts/release-mac-prep.mjs && electron-builder --mac",
-    "pack:win": "npm run build && node scripts/release-win-prep.mjs && electron-builder --win",
+    "pack": "npm run build && node scripts/release-win-prep.mjs && electron-builder && node scripts/verify-packaged-sharp.mjs",
+    "pack:dir": "npm run build && node scripts/release-win-prep.mjs && electron-builder --dir && node scripts/verify-packaged-sharp.mjs",
+    "pack:mac": "npm run build && node scripts/release-mac-prep.mjs && electron-builder --mac && node scripts/verify-packaged-sharp.mjs",
+    "pack:win": "npm run build && node scripts/release-win-prep.mjs && electron-builder --win && node scripts/verify-packaged-sharp.mjs",
     "pack:linux": "node scripts/release-linux-pack.mjs",
     "release": "powershell -ExecutionPolicy Bypass -File scripts/ttrpg-release/release.ps1",
     "release:all": "powershell -ExecutionPolicy Bypass -File scripts/ttrpg-release/release-all.ps1",
diff --git a/scripts/release-linux-pack.mjs b/scripts/release-linux-pack.mjs
index 0672e10..762ce09 100644
--- a/scripts/release-linux-pack.mjs
+++ b/scripts/release-linux-pack.mjs
@@ -71,3 +71,4 @@ run('npm', ['run', 'build']);
 ensureReleaseNativeDeps(projectRoot, 'linux');
 run('electron-builder', ['--linux']);
 normalizeLinuxReleaseNames();
+run('node', [path.join(projectRoot, 'scripts', 'verify-packaged-sharp.mjs')]);
diff --git a/scripts/verify-packaged-sharp.mjs b/scripts/verify-packaged-sharp.mjs
new file mode 100644
index 0000000..b33efe6
--- /dev/null
+++ b/scripts/verify-packaged-sharp.mjs
@@ -0,0 +1,192 @@
+/**
+ * After electron-builder: fail the pack if sharp / @img look missing or truncated
+ * in release unpacked dirs. Catches AV quarantine and incomplete asarUnpack before shipping.
+ */
+import fs from 'node:fs';
+import path from 'node:path';
+import { fileURLToPath, pathToFileURL } from 'node:url';
+
+const root = path.resolve(path.dirname(fileURLToPath(import.meta.url)), '..');
+
+/**
+ * @param {string} startDir
+ * @returns {string | null}
+ */
+function findAsarUnpackedNodeModules(startDir) {
+  const direct = path.join(startDir, 'resources', 'app.asar.unpacked', 'node_modules');
+  if (fs.existsSync(direct)) return direct;
+
+  // macOS: *.app/Contents/Resources/app.asar.unpacked/node_modules
+  if (!fs.existsSync(startDir)) return null;
+  for (const name of fs.readdirSync(startDir)) {
+    if (!name.endsWith('.app')) continue;
+    const macNm = path.join(
+      startDir,
+      name,
+      'Contents',
+      'Resources',
+      'app.asar.unpacked',
+      'node_modules',
+    );
+    if (fs.existsSync(macNm)) return macNm;
+  }
+  return null;
+}
+
+/**
+ * @param {string} filePath
+ * @param {number} minBytes
+ */
+function assertJsLooksIntact(filePath, minBytes) {
+  if (!fs.existsSync(filePath)) {
+    throw new Error(`[verify-packaged-sharp] missing: ${filePath}`);
+  }
+  const st = fs.statSync(filePath);
+  if (st.size < minBytes) {
+    throw new Error(
+      `[verify-packaged-sharp] truncated (${st.size} B < ${minBytes}): ${filePath}`,
+    );
+  }
+  const head = fs.readFileSync(filePath, { encoding: 'utf8', flag: 'r' }).slice(0, 120);
+  const trimmed = head.trimStart();
+  const ok =
+    trimmed.startsWith("'use strict'") ||
+    trimmed.startsWith('"use strict"') ||
+    head.includes('require(') ||
+    head.includes('module.exports');
+  if (!ok) {
+    throw new Error(
+      `[verify-packaged-sharp] sharp entry does not look like JS (corrupt?): ${filePath}`,
+    );
+  }
+}
+
+/**
+ * @param {string} dir
+ */
+function assertHasNativeBinary(dir) {
+  if (!fs.existsSync(dir)) {
+    throw new Error(`[verify-packaged-sharp] missing native package dir: ${dir}`);
+  }
+  const stack = [dir];
+  while (stack.length) {
+    const cur = stack.pop();
+    if (!cur) break;
+    for (const name of fs.readdirSync(cur)) {
+      const p = path.join(cur, name);
+      const st = fs.statSync(p);
+      if (st.isDirectory()) {
+        stack.push(p);
+        continue;
+      }
+      if (
+        name.endsWith('.node') ||
+        name.endsWith('.dll') ||
+        name.endsWith('.dylib') ||
+        /\.so(\.|$)/u.test(name)
+      ) {
+        if (st.size < 50_000) {
+          throw new Error(
+            `[verify-packaged-sharp] native binary too small (${st.size} B): ${p}`,
+          );
+        }
+        return;
+      }
+    }
+  }
+  throw new Error(`[verify-packaged-sharp] no .node/.dll/.so under ${dir}`);
+}
+
+/**
+ * @param {{ label: string; unpackedRoot: string; imgDirs: string[] }} probe
+ */
+export function verifyUnpackedSharp(probe) {
+  const unpackedNm =
+    findAsarUnpackedNodeModules(probe.unpackedRoot) ??
+    path.join(probe.unpackedRoot, 'resources', 'app.asar.unpacked', 'node_modules');
+
+  const sharpIndex = path.join(unpackedNm, 'sharp', 'lib', 'index.js');
+  // Real sharp/lib/index.js is typically several KB; empty/AV-quarantined files fail here.
+  assertJsLooksIntact(sharpIndex, 32);
+
+  for (const img of probe.imgDirs) {
+    assertHasNativeBinary(path.join(unpackedNm, '@img', img));
+  }
+}
+
+/** @type {{ label: string; unpackedRoot: string; imgDirs: string[] }[]} */
+const PROBES = [
+  {
+    label: 'win-unpacked',
+    unpackedRoot: path.join(root, 'release', 'win-unpacked'),
+    imgDirs: ['sharp-win32-x64'],
+  },
+  {
+    label: 'mac-arm64',
+    unpackedRoot: path.join(root, 'release', 'mac-arm64'),
+    imgDirs: ['sharp-darwin-arm64'],
+  },
+  {
+    label: 'mac',
+    unpackedRoot: path.join(root, 'release', 'mac'),
+    imgDirs: ['sharp-darwin-x64', 'sharp-darwin-arm64'],
+  },
+  {
+    label: 'linux-unpacked',
+    unpackedRoot: path.join(root, 'release', 'linux-unpacked'),
+    imgDirs: ['sharp-linux-x64', 'sharp-linux-arm64'],
+  },
+];
+
+/**
+ * Verify every existing unpacked release dir. At least one must exist.
+ * For multi-arch probes, require at least one listed @img package that is present.
+ */
+export function verifyPackagedSharpRelease(releaseRoot = root) {
+  const probes = PROBES.map((p) => ({
+    ...p,
+    unpackedRoot: path.join(
+      releaseRoot,
+      path.relative(root, p.unpackedRoot),
+    ),
+  }));
+  const existing = probes.filter((p) => fs.existsSync(p.unpackedRoot));
+  if (existing.length === 0) {
+    throw new Error(
+      '[verify-packaged-sharp] no release unpacked dir found — run electron-builder first',
+    );
+  }
+
+  for (const probe of existing) {
+    const nm = findAsarUnpackedNodeModules(probe.unpackedRoot);
+    if (!nm) {
+      throw new Error(
+        `[verify-packaged-sharp] app.asar.unpacked/node_modules missing under ${probe.unpackedRoot}`,
+      );
+    }
+    const presentImg = probe.imgDirs.filter((d) =>
+      fs.existsSync(path.join(nm, '@img', d)),
+    );
+    if (presentImg.length === 0) {
+      throw new Error(
+        `[verify-packaged-sharp] none of @img/{${probe.imgDirs.join(',')}} under ${nm}`,
+      );
+    }
+    verifyUnpackedSharp({ ...probe, imgDirs: presentImg });
+    console.log(`[verify-packaged-sharp] OK: ${probe.label}`);
+  }
+}
+
+function main() {
+  verifyPackagedSharpRelease();
+}
+
+const entry = process.argv[1] ? pathToFileURL(path.resolve(process.argv[1])).href : '';
+if (import.meta.url === entry) {
+  try {
+    main();
+  } catch (err) {
+    console.error(err instanceof Error ? err.message : err);
+    process.exit(1);
+  }
+}
diff --git a/scripts/verify-packaged-sharp.test.mjs b/scripts/verify-packaged-sharp.test.mjs
new file mode 100644
index 0000000..08be5a2
--- /dev/null
+++ b/scripts/verify-packaged-sharp.test.mjs
@@ -0,0 +1,89 @@
+import assert from 'node:assert/strict';
+import fs from 'node:fs';
+import os from 'node:os';
+import path from 'node:path';
+import test from 'node:test';
+
+import { verifyUnpackedSharp } from './verify-packaged-sharp.mjs';
+
+void test('verifyUnpackedSharp: accepts intact layout', () => {
+  const root = fs.mkdtempSync(path.join(os.tmpdir(), 'dnd-sharp-verify-'));
+  try {
+    const nm = path.join(root, 'resources', 'app.asar.unpacked', 'node_modules');
+    const sharpLib = path.join(nm, 'sharp', 'lib');
+    fs.mkdirSync(sharpLib, { recursive: true });
+    fs.writeFileSync(
+      path.join(sharpLib, 'index.js'),
+      "'use strict';\nmodule.exports = require('./constructor');\n",
+      'utf8',
+    );
+    const imgDir = path.join(nm, '@img', 'sharp-win32-x64');
+    fs.mkdirSync(imgDir, { recursive: true });
+    fs.writeFileSync(path.join(imgDir, 'sharp.node'), Buffer.alloc(60_000, 1));
+
+    verifyUnpackedSharp({
+      label: 'fixture',
+      unpackedRoot: root,
+      imgDirs: ['sharp-win32-x64'],
+    });
+  } finally {
+    fs.rmSync(root, { recursive: true, force: true });
+  }
+});
+
+void test('verifyUnpackedSharp: rejects truncated sharp index', () => {
+  const root = fs.mkdtempSync(path.join(os.tmpdir(), 'dnd-sharp-verify-'));
+  try {
+    const nm = path.join(root, 'resources', 'app.asar.unpacked', 'node_modules');
+    const sharpLib = path.join(nm, 'sharp', 'lib');
+    fs.mkdirSync(sharpLib, { recursive: true });
+    fs.writeFileSync(path.join(sharpLib, 'index.js'), 'x', 'utf8');
+    const imgDir = path.join(nm, '@img', 'sharp-win32-x64');
+    fs.mkdirSync(imgDir, { recursive: true });
+    fs.writeFileSync(path.join(imgDir, 'sharp.node'), Buffer.alloc(60_000, 1));
+
+    assert.throws(
+      () =>
+        verifyUnpackedSharp({
+          label: 'fixture',
+          unpackedRoot: root,
+          imgDirs: ['sharp-win32-x64'],
+        }),
+      /truncated|corrupt/i,
+    );
+  } finally {
+    fs.rmSync(root, { recursive: true, force: true });
+  }
+});
+
+void test('verifyUnpackedSharp: accepts mac .app layout', () => {
+  const root = fs.mkdtempSync(path.join(os.tmpdir(), 'dnd-sharp-verify-mac-'));
+  try {
+    const nm = path.join(
+      root,
+      'TTRPGPlayer.app',
+      'Contents',
+      'Resources',
+      'app.asar.unpacked',
+      'node_modules',
+    );
+    const sharpLib = path.join(nm, 'sharp', 'lib');
+    fs.mkdirSync(sharpLib, { recursive: true });
+    fs.writeFileSync(
+      path.join(sharpLib, 'index.js'),
+      "'use strict';\nmodule.exports = {};\n",
+      'utf8',
+    );
+    const imgDir = path.join(nm, '@img', 'sharp-darwin-arm64');
+    fs.mkdirSync(imgDir, { recursive: true });
+    fs.writeFileSync(path.join(imgDir, 'sharp.node'), Buffer.alloc(60_000, 1));
+
+    verifyUnpackedSharp({
+      label: 'mac-fixture',
+      unpackedRoot: root,
+      imgDirs: ['sharp-darwin-arm64'],
+    });
+  } finally {
+    fs.rmSync(root, { recursive: true, force: true });
+  }
+});