Harden os password （terminal windows and headless linux) anti brute force (#14985)

* fix(windows): terminal, preauth bruteforce

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix(linux): headless, preauth bruteforce

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix(linux): headless, OS login, minimal fix

Signed-off-by: fufesou <linlong1266@gmail.com>

* Terminal session, click-only

Signed-off-by: fufesou <linlong1266@gmail.com>

* Simple refactor, logs

Signed-off-by: fufesou <linlong1266@gmail.com>

* harden os password, better scoped failure set

Signed-off-by: fufesou <linlong1266@gmail.com>

* harden os password, ip failure count

Signed-off-by: fufesou <linlong1266@gmail.com>

* Check prelogin before starting cm

Signed-off-by: fufesou <linlong1266@gmail.com>

* Isolate terminal OS login failure tracking

Terminal OS login no longer reads or updates the default RustDesk
per-IP failure bucket. It now uses only the OS credential policy, while
RustDesk password attempts keep using the existing LOGIN_FAILURES[0]
bucket.

Signed-off-by: fufesou <linlong1266@gmail.com>

---------

Signed-off-by: fufesou <linlong1266@gmail.com>

src/server.rs

@@ -67,6 +67,7 @@ pub mod input_service {
 }
 
 mod connection;
+mod login_failure_check;
 pub mod display_service;
 #[cfg(windows)]
 pub mod portable_service;