Add web terminal, git credentials, OpenSCAD, review loops, automations

- Web terminal (PTY over WebSocket, xterm.js, sandboxed, reattach with replay)
- Per-user git credentials and commit identity (credential store in the user's home)
- OpenSCAD tool (STL/3MF + preview renders, bounding box) and cad skill; 3D model card
- Craft phase inferred from tool activity when the agent does not report it
- Configurable review loop per mode (rounds, reviewer model, criteria)
- Delete config and Markdown agents from the agent editor
- Automations: cron-scheduled agents from Markdown job files, schedule tool, page
- change_directory tool (only on the user's request)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

web/src/components/settings/Account.tsx

@@ -2,6 +2,7 @@ import { useState } from "react";
 import { post } from "../../api";
 import { useT } from "../../i18n";
 import { useStore } from "../../store";
+import { GitAccount } from "./GitAccount";
 
 export function Account() {
   const t = useT();
@@ -21,6 +22,7 @@ export function Account() {
   };
 
   return (
+    <>
     <div className="panel">
       <h3>
         {t("account.title")}: {me?.username}
@@ -43,5 +45,7 @@ export function Account() {
       </button>
       <div style={{ fontSize: 12, color: "var(--muted)", marginTop: 8 }}>{t("account.hint")}</div>
     </div>
+    <GitAccount />
+    </>
   );
 }