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/cli/src/commands/agent/run.ts

@@ -325,7 +325,7 @@ export async function runRunCommand(
           };
         } catch (err) {
           const message = err instanceof Error ? err.message : String(err);
-          throw new Error(`Failed to read image ${imagePath}: ${message}`);
+          throw new Error(`Failed to read image ${imagePath}: ${message}`, { cause: err });
         }
       });
     }