Unify service accounts to one kind, add manager field, make homeDirectory/loginShell editable

Removes the LDAP bind-only service account type in favor of a single
Unix/POSIX account model, surfaced in a new Users > Service Accounts tab.
Adds a multi-valued `manager` field to every account (defaults to the
creator, editable, and grants edit rights on the accounts a person manages
without needing app_sso_admin). homeDirectory and loginShell are now
editable from the profile edit form.

Bumps to v1.1.7.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KDEx8ghuZR61pqPXc6da9C

nodejs/package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "t42-sso-manager",
-  "version": "1.1.6",
+  "version": "1.1.7",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "t42-sso-manager",
-      "version": "1.1.6",
+      "version": "1.1.7",
       "license": "MIT",
       "dependencies": {
         "@fortawesome/fontawesome-free": "^7.3.0",