chore: apply oxlint autofix (safe level)

Auto-fixed 102 warnings (6040 → 5938) across 57 files. Main categories:
- preserve-caught-error: add { cause: error } to re-thrown errors
- unicorn/no-array-reverse: .reverse() → .toReversed()
- unicorn/no-useless-fallback-in-spread: drop unnecessary ?? {} in spreads
- oxc/no-map-spread: rewrite object spread in .map() to Object.assign
- react-hooks/exhaustive-deps: trim module-level constants from dep arrays

Ran npm run format after to clean up whitespace from lint mutations.

packages/desktop/src/daemon/daemon-manager.ts

@@ -153,7 +153,7 @@ function tailFile(filePath: string, lines = 50): string {
 function logDesktopDaemonLifecycle(message: string, details?: Record<string, unknown>): void {
   log.info("[desktop daemon]", message, {
     pid: process.pid,
-    ...(details ?? {}),
+    ...details,
   });
 }
 

packages/desktop/src/daemon/runtime-paths.ts

@@ -349,6 +349,7 @@ export async function runCliJsonCommand(args: string[]): Promise<unknown> {
   } catch (error) {
     throw new Error(
       `CLI command returned invalid JSON: ${error instanceof Error ? error.message : String(error)}`,
+      { cause: error },
     );
   }
 }