fix: make OCR portable and reliable across AMD64 and ARM64 (#519)

* fix: make OCR portable and reliable

* fix: harden OCR installation portability

* fix: pin OCR partials across downloads

* fix: make OCR execution reliably asynchronous

* fix: harden OCR portability and docs routes

* fix: preserve decoder and docs safeguards

apps/demo/src/mock-api.ts

@@ -78,11 +78,18 @@ const FEATURE_BUNDLES = [
   {
     id: "ocr",
     name: "OCR",
-    description: "Extract text from images",
+    description: "Extract text from images and PDFs",
     status: "installed",
     installedVersion: "1.0.0",
-    estimatedSize: "3-4 GB",
-    enablesTools: ["ocr"],
+    estimatedSize: "~208-234 MiB download / ~409-488 MiB installed",
+    downloadBytes: 244_622_462,
+    installedBytes: 510_762_511,
+    compatibility: "compatible",
+    selectedTarget: "linux-amd64-cpu-py312",
+    missingDownloadBytes: 0,
+    healthyGeneration: "1.0.0-demo",
+    availableQualities: ["fast", "balanced", "best"],
+    enablesTools: ["ocr", "ocr-pdf"],
     progress: null,
     error: null,
   },