feat(support-info): add app support information

apps/desktop/src/lib/app/supportInfo.ts

@@ -0,0 +1,67 @@
+import type { AppSupportInfo } from "@/lib/backend/tauri";
+
+export interface AppSupportInfoLabels {
+  appVersion: string;
+  runtime: string;
+  runtimeDesktop: string;
+  runtimeWeb: string;
+  operatingSystem: string;
+  architecture: string;
+  unknown: string;
+}
+
+export interface AppSupportInfoRow {
+  key: keyof Pick<AppSupportInfoLabels, "appVersion" | "runtime" | "operatingSystem" | "architecture">;
+  label: string;
+  value: string;
+}
+
+export function normalizeSupportInfoVersion(version: string | null | undefined, unknownLabel: string): string {
+  const trimmed = version?.trim();
+  if (!trimmed) return unknownLabel;
+  return trimmed.startsWith("v") || trimmed.startsWith("V") ? `v${trimmed.slice(1)}` : `v${trimmed}`;
+}
+
+export function formatSupportInfoRuntime(runtime: AppSupportInfo["runtime"], labels: AppSupportInfoLabels): string {
+  if (runtime === "desktop") return labels.runtimeDesktop;
+  if (runtime === "web") return labels.runtimeWeb;
+  return labels.unknown;
+}
+
+export function formatSupportInfoOperatingSystem(info: AppSupportInfo, unknownLabel: string): string {
+  const name = info.osName?.trim();
+  const version = info.osVersion?.trim();
+  if (!name && !version) return unknownLabel;
+  return [name, version].filter(Boolean).join(" ");
+}
+
+export function buildAppSupportInfoRows(info: AppSupportInfo, labels: AppSupportInfoLabels): AppSupportInfoRow[] {
+  return [
+    {
+      key: "appVersion",
+      label: labels.appVersion,
+      value: normalizeSupportInfoVersion(info.appVersion, labels.unknown),
+    },
+    {
+      key: "runtime",
+      label: labels.runtime,
+      value: formatSupportInfoRuntime(info.runtime, labels),
+    },
+    {
+      key: "operatingSystem",
+      label: labels.operatingSystem,
+      value: formatSupportInfoOperatingSystem(info, labels.unknown),
+    },
+    {
+      key: "architecture",
+      label: labels.architecture,
+      value: info.arch?.trim() || labels.unknown,
+    },
+  ];
+}
+
+export function formatAppSupportInfoForClipboard(info: AppSupportInfo, labels: AppSupportInfoLabels): string {
+  return buildAppSupportInfoRows(info, labels)
+    .map((row) => `${row.label}: ${row.value}`)
+    .join("\n");
+}