ement: silent startup restore via ement--reconnect, explicit homeserver

my/ement-maybe-restore now:
- Loads sessions file manually (ement--load-sessions) before connecting
- Calls ement--reconnect directly on each loaded session — bypasses all
  interactive prompts in ement-connect (homeserver discovery, read-passwd)
- Fallback to ement-connect with explicit :homeserver if --reconnect absent
- condition-case wrapper — startup errors are silent, never block Emacs

my/ement-open: use my/ement-maybe-restore (instead of ement-connect
directly) for the 'sessions file exists' branch.

config.el

@@ -893,10 +893,26 @@ Keeps the status bar and tab bar fully visible at any zoom level.")
     (ement-list-rooms)))
 
 (defun my/ement-maybe-restore ()
-  "Restore saved ement session silently (no credentials prompt)."
+  "Restore saved ement session silently on startup. No prompts, no buffer.
+Loads sessions from file and calls ement--reconnect directly to bypass
+any interactive prompts in ement-connect (homeserver discovery, password)."
   (require 'ement)
-  (when (file-readable-p (expand-file-name ement-sessions-file))
-    (ement-connect :user-id "@martin:sukany.cz")))
+  (condition-case err
+      (let ((sf (expand-file-name ement-sessions-file)))
+        (when (file-readable-p sf)
+          ;; Pre-load sessions from file so ement-connect won't prompt
+          (unless ement-sessions
+            (when (fboundp 'ement--load-sessions)
+              (setq ement-sessions (ement--load-sessions))))
+          ;; Reconnect directly — bypasses interactive ement-connect entirely
+          (if (fboundp 'ement--reconnect)
+              (dolist (entry ement-sessions)
+                (ement--reconnect (cdr entry)))
+            ;; Fallback: explicit homeserver avoids discovery/password prompt
+            (when ement-sessions
+              (ement-connect :user-id (caar ement-sessions)
+                             :homeserver "https://matrix.apps.sukany.cz")))))
+    (error (message "ement startup restore: %s" (error-message-string err)))))
 
 (defun my/ement-open ()
   "Open Matrix panel: show room list (connect/restore if needed).
@@ -912,7 +928,7 @@ Otherwise: runs interactive ement-connect, then opens rooms after sync."
    ;; Saved session exists — restore without credentials, open rooms after sync
    ((file-readable-p (expand-file-name ement-sessions-file))
     (add-hook 'ement-after-initial-sync-hook #'my/ement-open-after-sync)
-    (ement-connect :user-id "@martin:sukany.cz"))
+    (my/ement-maybe-restore))
    ;; No saved session — interactive connect, open rooms after sync
    (t
     (add-hook 'ement-after-initial-sync-hook #'my/ement-open-after-sync)