remove the dead multi-user surface

Officer is single-user: the server owner is the only account, created once by
/auth/bootstrap. Everything that existed to serve additional users was
unreachable, so it is gone rather than left looking like it does something.

Accounts: drop the invite / resend-invite / delete / list-users routes and the
Users settings screen, the inert /auth/signup handler, and the account
verification chain it fed (verify, resend-verification, VerifyScreen, the
UserInvite + VerifyAdmin + VerifyRegistration templates). /auth/verify-token
survives for password resets only, and now requires a reset-password token
rather than accepting any signed JWT.

Roles: drop the users.role column and the four-value USER_ROLES enum. The
permissions table granted every role identical methods, and every
role === 'Super Admin' check was permanently true. The JWT no longer carries a
role claim.

Sandbox: remove sidecar/sandbox.ts and its five call sites. bwrap was selected
only for non-Super-Admin users, so it never ran. It was also not a usable agent
jail as written — --share-net, the project root (with .env) bound read-only,
and runuser dropping to the server's own uid. Rebuilding it for agent
containment would be a different construction, and git history keeps this one.

getHomeDir keeps its DATA_PATH meaning; the new getOwnerHomeDir resolves the
owner's real login home, which is what terminals, chats and task runs use.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

src/servers/_middlewares/user-middleware.ts

@@ -5,22 +5,6 @@ import { isOriginAllowed } from './origin-validation';
 import { isLockdown, noteBlocked } from '../api/auth/panic';
 import { getUserById, isTokenBlacklisted } from 'officerdb';
 
-// Role permissions: which HTTP methods each role can use
-// Roles not listed here are denied by default (fail-safe)
-const ROLE_PERMISSIONS: Record<string, string[]> = {
-  Member: ['GET', 'POST', 'PUT', 'PATCH', 'DELETE'],
-  Admin: ['GET', 'POST', 'PUT', 'PATCH', 'DELETE'],
-  Owner: ['GET', 'POST', 'PUT', 'PATCH', 'DELETE'],
-  'Super Admin': ['GET', 'POST', 'PUT', 'PATCH', 'DELETE'],
-};
-
-function isMethodAllowed(role: string | null, method: string): boolean {
-  if (!role) return false;
-  const allowedMethods = ROLE_PERMISSIONS[role];
-  if (!allowedMethods) return false; // Unknown role = no access
-  return allowedMethods.includes(method);
-}
-
 export const userMiddleware: MiddlewareHandler = async function (ctx, next) {
   // Duress lockdown: reject every authenticated request, cutting off all existing sessions.
   if (isLockdown()) {
@@ -68,9 +52,6 @@ export const userMiddleware: MiddlewareHandler = async function (ctx, next) {
       }
     }
 
-    if (!isMethodAllowed(user.role, ctx.req.method)) {
-      throw errors.FORBIDDEN('Insufficient permissions');
-    }
     ctx.set('user', user);
     return next();
   } catch (ex) {