feat: add script dry-run functionality and enhance script management

- Introduced a new dry-run endpoint for executing scripts without saving changes.
- Implemented a dedicated ScriptDryRunPage for user interaction with dry-run functionality.
- Enhanced ScriptsPage to support navigation to the dry-run feature.
- Added LogViewer component for displaying logs during script execution.
- Created ScriptEditPage for editing scripts with integrated dry-run capabilities.
- Updated workflows to include new scripts for fetching and notifying data.
- Improved overall user experience with better navigation and error handling.

packages/web/src/lib/script.js

@@ -0,0 +1,25 @@
+export const NEW_SCRIPT_TEMPLATE = `export default async function main(ctx) {
+  return ctx;
+}
+`;
+
+export const DEFAULT_INPUT_CONTEXT = `{
+  "data": {},
+  "config": {}
+}
+`;
+
+export function normalizeScriptName(name) {
+  const trimmed = name.trim();
+  if (!trimmed) return "";
+  return trimmed.endsWith(".js") ? trimmed : `${trimmed}.js`;
+}
+
+export function prettyJson(value) {
+  if (value === null || value === undefined) return "";
+  try {
+    return JSON.stringify(value, null, 2);
+  } catch {
+    return String(value);
+  }
+}