fix(mobile): address code review feedback - error handling, filename collision, hash display

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>

mobile/src/i18n/index.ts

@@ -70,7 +70,7 @@ export function t(key: string, params?: Record<string, string>): string {
 
   if (params) {
     for (const [k, v] of Object.entries(params)) {
-      value = value.replace(new RegExp(`\\{${k}\\}`, "g"), v);
+      value = value.replaceAll(`{${k}}`, v);
     }
   }
 

mobile/src/screens/FileDetailScreen.tsx

@@ -181,7 +181,7 @@ export default function FileDetailScreen() {
           <MetaRow label="File Size" value={formatBytes(file.file_size)} />
           <MetaRow label="MIME Type" value={file.mime_type ?? "–"} />
           <MetaRow label="Uploaded" value={formatDateTime(file.created_at)} />
-          <MetaRow label="File Hash" value={file.filehash ? `${file.filehash.slice(0, 16)}…` : "–"} />
+          <MetaRow label="File Hash" value={file.filehash ? `${file.filehash.slice(0, 24)}…` : "–"} />
           <MetaRow label="Last Step" value={status.last_step ?? "–"} />
           <MetaRow label="Total Steps" value={String(status.total_steps)} />
         </View>

mobile/src/screens/FilesScreen.tsx

@@ -109,18 +109,25 @@ export default function FilesScreen() {
       searchTimeoutRef.current = setTimeout(async () => {
         setPage(1);
         setLoading(true);
-        await fetchFiles(1, true, text);
-        setLoading(false);
+        try {
+          await fetchFiles(1, true, text);
+        } finally {
+          setLoading(false);
+        }
       }, 400);
     },
     [fetchFiles]
   );
 
-  const handleClearSearch = useCallback(() => {
+  const handleClearSearch = useCallback(async () => {
     setSearchQuery("");
     setPage(1);
     setLoading(true);
-    fetchFiles(1, true).then(() => setLoading(false));
+    try {
+      await fetchFiles(1, true);
+    } finally {
+      setLoading(false);
+    }
   }, [fetchFiles]);
 
   const handleFilePress = useCallback(

mobile/src/screens/UploadScreen.tsx

@@ -305,10 +305,11 @@ export default function UploadScreen() {
     });
 
     if (!result.canceled && result.assets.length > 0) {
-      for (const asset of result.assets) {
+      for (let i = 0; i < result.assets.length; i++) {
+        const asset = result.assets[i];
         // Derive extension from MIME type so the filename matches the actual format
         const ext = asset.mimeType?.split("/")[1]?.replace("jpeg", "jpg") ?? "jpg";
-        const filename = asset.fileName ?? `photo_${Date.now()}_${Math.random().toString(36).slice(2, 6)}.${ext}`;
+        const filename = asset.fileName ?? `photo_${Date.now()}_${i}.${ext}`;
         await uploadFile(asset.uri, filename, asset.mimeType ?? "image/jpeg");
       }
     }