Add company logo portability support

ui/src/lib/portable-files.ts

@@ -0,0 +1,41 @@
+import type { CompanyPortabilityFileEntry } from "@paperclipai/shared";
+
+const contentTypeByExtension: Record<string, string> = {
+  ".gif": "image/gif",
+  ".jpeg": "image/jpeg",
+  ".jpg": "image/jpeg",
+  ".png": "image/png",
+  ".svg": "image/svg+xml",
+  ".webp": "image/webp",
+};
+
+export function getPortableFileText(entry: CompanyPortabilityFileEntry | null | undefined) {
+  return typeof entry === "string" ? entry : null;
+}
+
+export function getPortableFileContentType(
+  filePath: string,
+  entry: CompanyPortabilityFileEntry | null | undefined,
+) {
+  if (entry && typeof entry === "object" && entry.contentType) return entry.contentType;
+  const extensionIndex = filePath.toLowerCase().lastIndexOf(".");
+  if (extensionIndex === -1) return null;
+  return contentTypeByExtension[filePath.toLowerCase().slice(extensionIndex)] ?? null;
+}
+
+export function getPortableFileDataUrl(
+  filePath: string,
+  entry: CompanyPortabilityFileEntry | null | undefined,
+) {
+  if (!entry || typeof entry === "string") return null;
+  const contentType = getPortableFileContentType(filePath, entry) ?? "application/octet-stream";
+  return `data:${contentType};base64,${entry.data}`;
+}
+
+export function isPortableImageFile(
+  filePath: string,
+  entry: CompanyPortabilityFileEntry | null | undefined,
+) {
+  const contentType = getPortableFileContentType(filePath, entry);
+  return typeof contentType === "string" && contentType.startsWith("image/");
+}

ui/src/lib/zip.test.ts

@@ -70,4 +70,28 @@ describe("createZipArchive", () => {
       },
     });
   });
+
+  it("round-trips binary image files without coercing them to text", () => {
+    const archive = createZipArchive(
+      {
+        "images/company-logo.png": {
+          encoding: "base64",
+          data: Buffer.from("png-bytes").toString("base64"),
+          contentType: "image/png",
+        },
+      },
+      "paperclip-demo",
+    );
+
+    expect(readZipArchive(archive)).toEqual({
+      rootPath: "paperclip-demo",
+      files: {
+        "images/company-logo.png": {
+          encoding: "base64",
+          data: Buffer.from("png-bytes").toString("base64"),
+          contentType: "image/png",
+        },
+      },
+    });
+  });
 });