Improve ISAC libraries, roles, and public profiles

AGENTS.md

@@ -84,6 +84,23 @@ search-oriented option sets. Preserve native form semantics, keyboard access,
 focus-visible, selected, disabled, pressed, responsive, and reduced-motion
 behavior in shared controls.
 
+## Development server lifecycle
+
+After changing source code, styles, configuration, dependencies, or routes,
+restart the development server before handing work back to the project owner.
+
+1. Inspect running processes and stop only this project's development-server
+   process tree.
+2. Start one hidden `npm run dev` process from the repository root. Do not leave
+   duplicate project development servers running.
+3. Confirm that the server accepts an HTTP request before completing the task.
+4. Leave the verified development server running so the project owner can
+   review the changes.
+
+Database maintenance may require the server to remain stopped while the
+embedded database is locked or changing. Restart and verify the server after
+the maintenance and validation steps finish.
+
 ## Prototype compatibility
 
 Treat application data and client payloads as prototype formats until the