Updates

packages/bare-os-booter/lib/services/bare-os-qvac-gguf-diagnose.mjs

@@ -1,6 +1,7 @@
 /**
  * Diagnose a GGUF on disk after load failure (magic / size / sha256).
  */
+import b4a from 'b4a'
 
 /** @type {Record<string, { size: number, sha256: string }>} */
 export const BARE_OS_QVAC_KNOWN_GGUF = {
@@ -24,12 +25,7 @@ export async function bareOsQvacDiagnoseGguf(filePath) {
   /** @type {string[]} */
   const lines = ['gguf path: ' + p]
   try {
-    let fs
-    try {
-      fs = await import('bare-fs')
-    } catch {
-      fs = await import('fs')
-    }
+    const fs = await import('bare-fs')
     const fsp = fs.promises || fs
     const st = await fsp.stat(p)
     lines.push('size: ' + st.size + ' bytes')
@@ -49,7 +45,7 @@ export async function bareOsQvacDiagnoseGguf(filePath) {
       )
     }
 
-    const buf = Buffer.alloc(4)
+    const buf = new Uint8Array(4)
     let fh
     try {
       if (typeof fsp.open === 'function') {
@@ -73,17 +69,12 @@ export async function bareOsQvacDiagnoseGguf(filePath) {
         /* ignore */
       }
     }
-    const magic = buf.toString('utf8')
+    const magic = b4a.toString(buf, 'utf8')
     lines.push('magic: ' + JSON.stringify(magic) + (magic === 'GGUF' ? ' (ok)' : ' (BAD)'))
 
     if (known && st.size === known.size && st.size <= 2 * 1024 * 1024 * 1024) {
       try {
-        let crypto
-        try {
-          crypto = await import('bare-crypto')
-        } catch {
-          crypto = await import('crypto')
-        }
+        const crypto = await import('bare-crypto')
         const createHash = crypto.createHash || crypto.default?.createHash
         if (typeof createHash === 'function') {
           const hash = createHash('sha256')