fix(autofill): page tenue eveillee dans le tray et au retour de veille

Premier autofill apres des heures cachee : la page mettait 3 a 5 s a
repondre, alors que les drapeaux anti-gel de Chromium etaient appliques.
Un ExecuteJavaScript trivial toutes les 5 min, et tout de suite a la sortie
de veille ou au deverrouillage de session.

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

delphi-backend/Source/PM.Bridge.pas

@@ -109,6 +109,7 @@ type
     // WinEvent hook that watches every foreground change in the session.
     FForegroundHook: THandle;
     FOnSystemLock: TProc;
+    FOnSystemResume: TProc;
     // Set TRUE the moment Windows tells us the session is ending
     // (WM_QUERYENDSESSION / WM_ENDSESSION). FormCloseQuery checks this
     // to bypass the "minimize to tray" intercept so the form closes
@@ -296,6 +297,8 @@ type
     property AutofillTotpActive: Boolean read FAutofillTotpActive;
     // Fired on main thread when Windows locks the session (WTS_SESSION_LOCK).
     property OnSystemLock: TProc read FOnSystemLock write FOnSystemLock;
+    // Sortie de veille ou session deverrouillee : de quoi reveiller la page.
+    property OnSystemResume: TProc read FOnSystemResume write FOnSystemResume;
     // True once WM_QUERYENDSESSION (or WM_ENDSESSION) has been received.
     // FormCloseQuery uses this to allow normal close during shutdown.
     property ShutdownPending: Boolean read FShutdownPending;
@@ -406,6 +409,7 @@ const
 const
   WM_WTSSESSION_CHANGE    = $02B1;
   WTS_SESSION_LOCK        = 7;
+  WTS_SESSION_UNLOCK      = 8;
   NOTIFY_FOR_THIS_SESSION = 0;
 
 // Power management broadcast — sent to all top-level windows when the
@@ -1755,6 +1759,8 @@ begin
   begin
     if AMsg.WParam = WTS_SESSION_LOCK then
       if Assigned(FOnSystemLock) then FOnSystemLock();
+    if AMsg.WParam = WTS_SESSION_UNLOCK then
+      if Assigned(FOnSystemResume) then FOnSystemResume();
   end
 
   else if AMsg.Msg = WM_POWERBROADCAST then
@@ -1768,6 +1774,8 @@ begin
     // suspends — fast handler required (no UI prompts, no network).
     if AMsg.WParam = PBT_APMSUSPEND then
       if Assigned(FOnSystemLock) then FOnSystemLock();
+    if AMsg.WParam = PBT_APMRESUMEAUTOMATIC then
+      if Assigned(FOnSystemResume) then FOnSystemResume();
   end
 
   else if (AMsg.Msg = WM_QUERYENDSESSION) or (AMsg.Msg = WM_ENDSESSION) then