fix: fetch prebuilt binary from latest GitHub release, not package version

Query the GitHub releases API for the latest tag instead of deriving
it from package.json. This ensures users always get the newest
prebuilt binary regardless of which npm version they installed.

Author: lilith

scripts/download.js

@@ -8,7 +8,6 @@ import { existsSync, copyFileSync, writeFileSync, mkdirSync } from 'node:fs';
 import { execSync, spawnSync } from 'node:child_process';
 import { dirname, join } from 'node:path';
 import { fileURLToPath } from 'node:url';
-import { createRequire } from 'node:module';
 
 const __dirname = dirname(fileURLToPath(import.meta.url));
 const nativeDir = join(__dirname, '..', 'native');
@@ -31,10 +30,6 @@ const ARTIFACT_MAP = {
 const platformKey = `${process.platform}-${process.arch}`;
 const artifactName = ARTIFACT_MAP[platformKey];
 
-// Read package version to find matching GitHub release
-const require = createRequire(import.meta.url);
-const pkg = require('../package.json');
-const version = pkg.version;
 const repo = 'imazen/imageflow-node';
 
 async function tryDownloadPrebuilt() {
@@ -43,12 +38,23 @@ async function tryDownloadPrebuilt() {
     return false;
   }
 
-  const tag = `v${version}`;
-  const url = `https://github.com/${repo}/releases/download/${tag}/${artifactName}`;
+  try {
+    // Fetch latest release tag from GitHub API
+    console.log(`Querying latest release from ${repo}...`);
+    const apiUrl = `https://api.github.com/repos/${repo}/releases/latest`;
+    const apiResp = await fetch(apiUrl, {
+      headers: { 'Accept': 'application/vnd.github.v3+json' },
+    });
+    if (!apiResp.ok) {
+      console.log(`GitHub API returned ${apiResp.status}, will build from source.`);
+      return false;
+    }
+    const release = await apiResp.json();
+    const tag = release.tag_name;
 
-  console.log(`Downloading prebuilt binary for ${platformKey} from ${url}...`);
+    const url = `https://github.com/${repo}/releases/download/${tag}/${artifactName}`;
+    console.log(`Downloading prebuilt binary for ${platformKey} from ${tag}...`);
 
-  try {
     const response = await fetch(url, { redirect: 'follow' });
     if (!response.ok) {
       console.log(`Download failed (HTTP ${response.status}), will build from source.`);