feat(support-info): add app support information

apps/desktop/src/lib/backend/api.ts

@@ -440,6 +440,7 @@ export const checkForUpdates = forward("checkForUpdates");
 export const getSystemProxyUrl = forward("getSystemProxyUrl");
 export const downloadAndInstallUpdate = forward("downloadAndInstallUpdate");
 export const getAppVersion = forward("getAppVersion");
+export const getAppSupportInfo = forward("getAppSupportInfo");
 
 // Layout
 export const saveSidebarLayout = forward("saveSidebarLayout");
@@ -450,6 +451,7 @@ export const loadSidebarLayout = forward("loadSidebarLayout");
 // ---------------------------------------------------------------------------
 
 export type {
+  AppSupportInfo,
   AiMessage,
   AiCompletionRequest,
   AiTaskContract,

apps/desktop/src/lib/backend/http.ts

@@ -97,6 +97,7 @@ import type {
   ExplainSqlBuildResult,
   DroppedFilePreviewSqlOptions,
   MongoGridFsFileInfo,
+  AppSupportInfo,
 } from "@/lib/backend/tauri";
 import type { QueryEditability } from "@/lib/sql/sqlAnalysis";
 import type {
@@ -2102,6 +2103,17 @@ export async function getAppVersion(): Promise<string> {
   return res.version;
 }
 
+export async function getAppSupportInfo(): Promise<AppSupportInfo> {
+  const appVersion = await getAppVersion();
+  return {
+    appVersion,
+    runtime: "web",
+    osName: navigator.platform || "web",
+    osVersion: null,
+    arch: "",
+  };
+}
+
 // ---------------------------------------------------------------------------
 // Layout
 // ---------------------------------------------------------------------------

apps/desktop/src/lib/backend/tauri.ts

@@ -200,6 +200,14 @@ export interface WebDavSyncSecretsStatus {
   hasSavedPassphrase: boolean;
 }
 
+export interface AppSupportInfo {
+  appVersion: string;
+  runtime: "desktop" | "web";
+  osName: string;
+  osVersion?: string | null;
+  arch: string;
+}
+
 export interface QueryPagination {
   limit: number;
   offset: number;
@@ -1301,6 +1309,10 @@ export async function getAppVersion(): Promise<string> {
   return getVersion();
 }
 
+export async function getAppSupportInfo(): Promise<AppSupportInfo> {
+  return invoke<AppSupportInfo>("get_app_support_info");
+}
+
 // --- Redis ---
 export interface RedisKeyInfo {
   key_display: string;