Production hardening: REAPER all-in-one launcher, rdpthread UX, logic fixes

- Add REAPER.bat single entry (pip, dirs, smoke test, launch); MASTER/MASTERSTER shim to it
- bruteforce: rdpthread helpers, safe writer close, spray_all_hosts incremental writes, progress
- gui: credential banner, spray messaging without spam; cmdkey TERMSRV host
- scanner: adaptive progress; proxy: retry cap on open_connection
- ip_utils: /32 CIDR, count_ips aligned with large dash ranges
- README/install/run: deployment docs and REAPER.bat references

Co-authored-by: Cursor <cursoragent@cursor.com>

ip_utils.py

@@ -19,12 +19,15 @@ def parse_line(line: str) -> Generator[str, None, None]:
     if not line or line.startswith('#') or line.startswith('//'):
         return
 
-    # CIDR: 192.168.1.0/24
+    # CIDR: 192.168.1.0/24  (/32 must use the network address — .hosts() is empty)
     if '/' in line:
         try:
             network = ipaddress.IPv4Network(line, strict=False)
-            for host in network.hosts():
-                yield str(host)
+            if network.prefixlen == 32:
+                yield str(network.network_address)
+            else:
+                for host in network.hosts():
+                    yield str(host)
         except ValueError:
             pass
         return
@@ -69,7 +72,10 @@ def count_ips(filepath: str) -> int:
             if '/' in line:
                 try:
                     n = ipaddress.IPv4Network(line, strict=False)
-                    total += max(0, n.num_addresses - 2)
+                    if n.prefixlen >= 31:
+                        total += n.num_addresses
+                    else:
+                        total += max(0, n.num_addresses - 2)
                 except ValueError:
                     total += 1
             elif IP_RANGE_RE.match(line):
@@ -81,7 +87,10 @@ def count_ips(filepath: str) -> int:
                 e = int(ipaddress.IPv4Address(m.group(2)))
                 if s > e:
                     s, e = e, s
-                total += min(e - s + 1, 65536)
+                # Same /16 cap as parse_line() so Total matches work done
+                if e - s > 65536:
+                    e = s + 65536
+                total += e - s + 1
             elif SINGLE_IP_RE.match(line):
                 total += 1
     return total