UI changes to update and support auto updating (#6075)

Co-authored-by: Claude Opus 4.6 (1M context) <[email protected]>

frontend/scripts/dev-update-test/setup-dev-updater.sh

@@ -0,0 +1,47 @@
+#!/usr/bin/env bash
+# Sets up a dev/local Tauri signing key pair and config override for update testing.
+# Run once before using tauri:dev-with-update.
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+KEYS_DIR="$SCRIPT_DIR/.keys"
+FRONTEND_DIR="$SCRIPT_DIR/../.."
+TAURI_CONF_OVERRIDE="$FRONTEND_DIR/editor/src-tauri/tauri.conf.dev-update.json"
+
+mkdir -p "$KEYS_DIR"
+
+echo "Generating Tauri Ed25519 signing key pair for dev update testing..."
+
+# Generate key pair — private key goes to .keys/dev-update-key, public key to .keys/dev-update-key.pub
+(cd "$FRONTEND_DIR/editor" && npx tauri signer generate -w "$KEYS_DIR/dev-update-key" --ci -p "")
+
+PUBKEY=$(cat "$KEYS_DIR/dev-update-key.pub")
+echo ""
+echo "Public key: $PUBKEY"
+echo ""
+
+# Write the override config — sets version to 0.0.1 so any "available" version looks newer,
+# and points the updater endpoint to the local dev server on port 8090.
+cat > "$TAURI_CONF_OVERRIDE" << EOF
+{
+  "version": "0.0.1",
+  "plugins": {
+    "updater": {
+      "pubkey": "$PUBKEY",
+      "endpoints": [
+        "http://localhost:8090/latest.json"
+      ]
+    }
+  }
+}
+EOF
+
+echo "Created: editor/src-tauri/tauri.conf.dev-update.json"
+echo ""
+echo "Next steps:"
+echo "  1. In a separate terminal: npm run tauri:serve-dev-update"
+echo "  2. Then run:               npm run tauri:dev-with-update"
+echo ""
+echo "The private key is stored at:"
+echo "  $KEYS_DIR/dev-update-key"
+echo "Keep it secret — it is gitignored."