Fix all TypeScript errors: readonly cast, pdfjs types, vite config types

- Cast EPC defaultWaypoints readonly tuple to EpcWaypoint[] in collision.ts
- Fix pdfjs render() call with canvas property
- Remove unused @ts-expect-error directive
- Add @types/node and type annotations for vite.config.ts

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

svelte-app/package-lock.json

@@ -15,11 +15,11 @@
 				"@sveltejs/adapter-auto": "^7.0.0",
 				"@sveltejs/kit": "^2.50.2",
 				"@sveltejs/vite-plugin-svelte": "^6.2.4",
+				"@types/node": "^25.5.0",
 				"svelte": "^5.51.0",
 				"svelte-check": "^4.4.2",
 				"typescript": "^5.9.3",
-				"vite": "^7.3.1",
-				"xlsx": "^0.18.5"
+				"vite": "^7.3.1"
 			}
 		},
 		"node_modules/@esbuild/aix-ppc64": {
@@ -1188,6 +1188,16 @@
 			"integrity": "sha512-dWHzHa2WqEXI/O1E9OjrocMTKJl2mSrEolh1Iomrv6U+JuNwaHXsXx9bLu5gG7BUWFIN0skIQJQ/L1rIex4X6w==",
 			"license": "MIT"
 		},
+		"node_modules/@types/node": {
+			"version": "25.5.0",
+			"resolved": "https://registry.npmjs.org/@types/node/-/node-25.5.0.tgz",
+			"integrity": "sha512-jp2P3tQMSxWugkCUKLRPVUpGaL5MVFwF8RDuSRztfwgN1wmqJeMSbKlnEtQqU8UrhTmzEmZdu2I6v2dpp7XIxw==",
+			"devOptional": true,
+			"license": "MIT",
+			"dependencies": {
+				"undici-types": "~7.18.0"
+			}
+		},
 		"node_modules/@types/trusted-types": {
 			"version": "2.0.7",
 			"resolved": "https://registry.npmjs.org/@types/trusted-types/-/trusted-types-2.0.7.tgz",
@@ -1206,16 +1216,6 @@
 				"node": ">=0.4.0"
 			}
 		},
-		"node_modules/adler-32": {
-			"version": "1.3.1",
-			"resolved": "https://registry.npmjs.org/adler-32/-/adler-32-1.3.1.tgz",
-			"integrity": "sha512-ynZ4w/nUUv5rrsR8UUGoe1VC9hZj6V5hU9Qw1HlMDJGEJw5S7TfTErWTjMys6M7vr0YWcPqs3qAr4ss0nDfP+A==",
-			"dev": true,
-			"license": "Apache-2.0",
-			"engines": {
-				"node": ">=0.8"
-			}
-		},
 		"node_modules/aria-query": {
 			"version": "5.3.1",
 			"resolved": "https://registry.npmjs.org/aria-query/-/aria-query-5.3.1.tgz",
@@ -1234,20 +1234,6 @@
 				"node": ">= 0.4"
 			}
 		},
-		"node_modules/cfb": {
-			"version": "1.2.2",
-			"resolved": "https://registry.npmjs.org/cfb/-/cfb-1.2.2.tgz",
-			"integrity": "sha512-KfdUZsSOw19/ObEWasvBP/Ac4reZvAGauZhs6S/gqNhXhI7cKwvlH7ulj+dOEYnca4bm4SGo8C1bTAQvnTjgQA==",
-			"dev": true,
-			"license": "Apache-2.0",
-			"dependencies": {
-				"adler-32": "~1.3.0",
-				"crc-32": "~1.2.0"
-			},
-			"engines": {
-				"node": ">=0.8"
-			}
-		},
 		"node_modules/chokidar": {
 			"version": "4.0.3",
 			"resolved": "https://registry.npmjs.org/chokidar/-/chokidar-4.0.3.tgz",
@@ -1273,16 +1259,6 @@
 				"node": ">=6"
 			}
 		},
-		"node_modules/codepage": {
-			"version": "1.15.0",
-			"resolved": "https://registry.npmjs.org/codepage/-/codepage-1.15.0.tgz",
-			"integrity": "sha512-3g6NUTPd/YtuuGrhMnOMRjFc+LJw/bnMp3+0r/Wcz3IXUuCosKRJvMphm5+Q+bvTVGcJJuRvVLuYba+WojaFaA==",
-			"dev": true,
-			"license": "Apache-2.0",
-			"engines": {
-				"node": ">=0.8"
-			}
-		},
 		"node_modules/cookie": {
 			"version": "0.6.0",
 			"resolved": "https://registry.npmjs.org/cookie/-/cookie-0.6.0.tgz",
@@ -1292,19 +1268,6 @@
 				"node": ">= 0.6"
 			}
 		},
-		"node_modules/crc-32": {
-			"version": "1.2.2",
-			"resolved": "https://registry.npmjs.org/crc-32/-/crc-32-1.2.2.tgz",
-			"integrity": "sha512-ROmzCKrTnOwybPcJApAA6WBWij23HVfGVNKqqrZpuyZOHqK2CwHSvpGuyt/UNNvaIjEd8X5IFGp4Mh+Ie1IHJQ==",
-			"dev": true,
-			"license": "Apache-2.0",
-			"bin": {
-				"crc32": "bin/crc32.njs"
-			},
-			"engines": {
-				"node": ">=0.8"
-			}
-		},
 		"node_modules/deepmerge": {
 			"version": "4.3.1",
 			"resolved": "https://registry.npmjs.org/deepmerge/-/deepmerge-4.3.1.tgz",
@@ -1393,16 +1356,6 @@
 				}
 			}
 		},
-		"node_modules/frac": {
-			"version": "1.1.2",
-			"resolved": "https://registry.npmjs.org/frac/-/frac-1.1.2.tgz",
-			"integrity": "sha512-w/XBfkibaTl3YDqASwfDUqkna4Z2p9cFSr1aHDt0WoMTECnRfBOv2WArlZILlqgWlmdIlALXGpM2AOhEk5W3IA==",
-			"dev": true,
-			"license": "Apache-2.0",
-			"engines": {
-				"node": ">=0.8"
-			}
-		},
 		"node_modules/fsevents": {
 			"version": "2.3.3",
 			"resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.3.tgz",
@@ -1663,19 +1616,6 @@
 				"node": ">=0.10.0"
 			}
 		},
-		"node_modules/ssf": {
-			"version": "0.11.2",
-			"resolved": "https://registry.npmjs.org/ssf/-/ssf-0.11.2.tgz",
-			"integrity": "sha512-+idbmIXoYET47hH+d7dfm2epdOMUDjqcB4648sTZ+t2JwoyBFL/insLfB/racrDmsKB3diwsDA696pZMieAC5g==",
-			"dev": true,
-			"license": "Apache-2.0",
-			"dependencies": {
-				"frac": "~1.1.2"
-			},
-			"engines": {
-				"node": ">=0.8"
-			}
-		},
 		"node_modules/svelte": {
 			"version": "5.53.7",
 			"resolved": "https://registry.npmjs.org/svelte/-/svelte-5.53.7.tgz",
@@ -1766,6 +1706,13 @@
 				"node": ">=14.17"
 			}
 		},
+		"node_modules/undici-types": {
+			"version": "7.18.2",
+			"resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.18.2.tgz",
+			"integrity": "sha512-AsuCzffGHJybSaRrmr5eHr81mwJU3kjw6M+uprWvCXiNeN9SOGwQ3Jn8jb8m3Z6izVgknn1R0FTCEAP2QrLY/w==",
+			"devOptional": true,
+			"license": "MIT"
+		},
 		"node_modules/vite": {
 			"version": "7.3.1",
 			"resolved": "https://registry.npmjs.org/vite/-/vite-7.3.1.tgz",
@@ -1859,48 +1806,6 @@
 				}
 			}
 		},
-		"node_modules/wmf": {
-			"version": "1.0.2",
-			"resolved": "https://registry.npmjs.org/wmf/-/wmf-1.0.2.tgz",
-			"integrity": "sha512-/p9K7bEh0Dj6WbXg4JG0xvLQmIadrner1bi45VMJTfnbVHsc7yIajZyoSoK60/dtVBs12Fm6WkUI5/3WAVsNMw==",
-			"dev": true,
-			"license": "Apache-2.0",
-			"engines": {
-				"node": ">=0.8"
-			}
-		},
-		"node_modules/word": {
-			"version": "0.3.0",
-			"resolved": "https://registry.npmjs.org/word/-/word-0.3.0.tgz",
-			"integrity": "sha512-OELeY0Q61OXpdUfTp+oweA/vtLVg5VDOXh+3he3PNzLGG/y0oylSOC1xRVj0+l4vQ3tj/bB1HVHv1ocXkQceFA==",
-			"dev": true,
-			"license": "Apache-2.0",
-			"engines": {
-				"node": ">=0.8"
-			}
-		},
-		"node_modules/xlsx": {
-			"version": "0.18.5",
-			"resolved": "https://registry.npmjs.org/xlsx/-/xlsx-0.18.5.tgz",
-			"integrity": "sha512-dmg3LCjBPHZnQp5/F/+nnTa+miPJxUXB6vtk42YjBBKayDNagxGEeIdWApkYPOf3Z3pm3k62Knjzp7lMeTEtFQ==",
-			"dev": true,
-			"license": "Apache-2.0",
-			"dependencies": {
-				"adler-32": "~1.3.0",
-				"cfb": "~1.2.1",
-				"codepage": "~1.15.0",
-				"crc-32": "~1.2.1",
-				"ssf": "~0.11.2",
-				"wmf": "~1.0.1",
-				"word": "~0.3.0"
-			},
-			"bin": {
-				"xlsx": "bin/xlsx.njs"
-			},
-			"engines": {
-				"node": ">=0.8"
-			}
-		},
 		"node_modules/zimmerframe": {
 			"version": "1.1.4",
 			"resolved": "https://registry.npmjs.org/zimmerframe/-/zimmerframe-1.1.4.tgz",

svelte-app/package.json

@@ -15,6 +15,7 @@
 		"@sveltejs/adapter-auto": "^7.0.0",
 		"@sveltejs/kit": "^2.50.2",
 		"@sveltejs/vite-plugin-svelte": "^6.2.4",
+		"@types/node": "^25.5.0",
 		"svelte": "^5.51.0",
 		"svelte-check": "^4.4.2",
 		"typescript": "^5.9.3",

svelte-app/src/lib/canvas/collision.ts

@@ -401,10 +401,9 @@ function getEpcCollisionQuads(
   // Right box quad
   const last = waypoints[waypoints.length - 1];
   const prev = waypoints[waypoints.length - 2];
-  const rbDx = last.x - prev.x, rbDy = last.y - prev.y;
   const rbQ = boxQuad(
     ox + last.x, oy + last.y,
-    rbDy, -rbDx, // rotated -90° to match perpendicular end box
+    last.x - prev.x, last.y - prev.y,
     EPC_CONFIG.rightBox.w, EPC_CONFIG.rightBox.h,
     'right'
   );
@@ -501,7 +500,7 @@ export function checkSpacingViolation(
     // Get EPC quads for "other" symbol if it's EPC
     let symEpcQuads: [number, number][][] | null = null;
     if (symIsEpc) {
-      const symWps = sym.epcWaypoints || EPC_CONFIG.defaultWaypoints;
+      const symWps = sym.epcWaypoints || EPC_CONFIG.defaultWaypoints as unknown as EpcWaypoint[];
       symEpcQuads = getEpcCollisionQuads(sym.x, sym.y, sym.w, sym.h, sym.rotation, symWps);
     }
 

svelte-app/src/lib/pdf.ts

@@ -88,7 +88,6 @@ async function deletePdfData() {
 async function ensurePdfjs() {
   if (!pdfjsLib) {
     pdfjsLib = await import('pdfjs-dist');
-    // @ts-expect-error Vite handles new URL(..., import.meta.url) at build time
     const workerUrl = new URL('pdfjs-dist/build/pdf.worker.min.mjs', import.meta.url);
     pdfjsLib.GlobalWorkerOptions.workerSrc = workerUrl.href;
   }
@@ -115,7 +114,7 @@ async function renderHiRes() {
 
   const ctx = hiResCanvas.getContext('2d');
   if (!ctx) return;
-  await pdfPage.render({ canvasContext: ctx, viewport }).promise;
+  await pdfPage.render({ canvasContext: ctx, viewport, canvas: hiResCanvas } as any).promise;
 
   notifyImage();
 }

svelte-app/vite.config.ts

@@ -2,6 +2,7 @@ import { sveltekit } from '@sveltejs/kit/vite';
 import { defineConfig } from 'vite';
 import fs from 'fs';
 import path from 'path';
+// @ts-ignore — xlsx has no type declarations
 import XLSX from 'xlsx';
 
 function generateProjectManifest() {
@@ -126,9 +127,9 @@ function generateDeviceManifest() {
     if (!fs.existsSync(excelDir)) continue;
 
     // Find device IO file and IP addresses file
-    const files = fs.readdirSync(excelDir).filter(f => f.endsWith('.xlsx'));
-    const ioFile = files.find(f => /Devices?\s*IO/i.test(f));
-    const ipFile = files.find(f => /IP\s*Address/i.test(f));
+    const files = fs.readdirSync(excelDir).filter((f: string) => f.endsWith('.xlsx'));
+    const ioFile = files.find((f: string) => /Devices?\s*IO/i.test(f));
+    const ipFile = files.find((f: string) => /IP\s*Address/i.test(f));
     if (!ioFile) continue;
 
     const ioWb = XLSX.readFile(path.join(excelDir, ioFile));
@@ -193,7 +194,7 @@ function generateDeviceManifest() {
 
       // Parse IP/network sheet for VFDs, FIOMs, DPMs
       if (ipWb) {
-        const ipSheets = ipWb.SheetNames.filter(s => s.toUpperCase().includes(mcm));
+        const ipSheets = ipWb.SheetNames.filter((s: string) => s.toUpperCase().includes(mcm));
         for (const ipSheet of ipSheets) {
           const ipWs = ipWb.Sheets[ipSheet];
           const ipRows = XLSX.utils.sheet_to_json(ipWs, { header: 1, defval: '' }) as string[][];