refactor: split oversized modules and start server src/stores layout

Consolidate format helpers under lib/format, split React Query hooks by domain, extract AuthPicker/ConfigRefHint and HTTP trigger routing, demote file-private exports, and move KV/secrets/variables/profiles/http-auths stores under src/stores with root re-exports.

Co-authored-by: Cursor <cursoragent@cursor.com>

packages/server/workflow-trash.js

@@ -20,7 +20,7 @@ function trashFilePath(owner, file) {
 /**
  * @param {string} deletedAtIso
  */
-export function trashAgeMs(deletedAtIso) {
+function trashAgeMs(deletedAtIso) {
   return Date.now() - Date.parse(deletedAtIso);
 }