feat: Add configurable restart policy, default to on-failure

- Changed restart policy from unless-stopped to on-failure
  so Windows shutdown stops the container instead of restarting
- Added RESTART_POLICY env variable to .env.modern and .env.legacy
- Compose files use ${RESTART_POLICY:-on-failure} for flexibility
- Updated WINCTL_GUIDE.md with restart policy documentation
- Updated readme.md with RESTART_POLICY setting

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

compose/desktop/win10.yml

@@ -16,7 +16,7 @@ services:
       - 3310:3389/udp
     volumes:
       - ../../data/win10:/storage
-    restart: unless-stopped
+    restart: ${RESTART_POLICY:-on-failure}
     stop_grace_period: 2m
 
   win10e:
@@ -36,7 +36,7 @@ services:
       - 3314:3389/udp
     volumes:
       - ../../data/win10e:/storage
-    restart: unless-stopped
+    restart: ${RESTART_POLICY:-on-failure}
     stop_grace_period: 2m
 
   win10l:
@@ -56,5 +56,5 @@ services:
       - 3315:3389/udp
     volumes:
       - ../../data/win10l:/storage
-    restart: unless-stopped
+    restart: ${RESTART_POLICY:-on-failure}
     stop_grace_period: 2m

compose/desktop/win11.yml

@@ -16,7 +16,7 @@ services:
       - 3311:3389/udp
     volumes:
       - ../../data/win11:/storage
-    restart: unless-stopped
+    restart: ${RESTART_POLICY:-on-failure}
     stop_grace_period: 2m
 
   win11e:
@@ -36,7 +36,7 @@ services:
       - 3312:3389/udp
     volumes:
       - ../../data/win11e:/storage
-    restart: unless-stopped
+    restart: ${RESTART_POLICY:-on-failure}
     stop_grace_period: 2m
 
   win11l:
@@ -56,5 +56,5 @@ services:
       - 3313:3389/udp
     volumes:
       - ../../data/win11l:/storage
-    restart: unless-stopped
+    restart: ${RESTART_POLICY:-on-failure}
     stop_grace_period: 2m

compose/desktop/win7.yml

@@ -16,7 +16,7 @@ services:
       - 3307:3389/udp
     volumes:
       - ../../data/win7:/storage
-    restart: unless-stopped
+    restart: ${RESTART_POLICY:-on-failure}
     stop_grace_period: 2m
 
   win7e:
@@ -36,5 +36,5 @@ services:
       - 3371:3389/udp
     volumes:
       - ../../data/win7e:/storage
-    restart: unless-stopped
+    restart: ${RESTART_POLICY:-on-failure}
     stop_grace_period: 2m

compose/desktop/win8.yml

@@ -16,7 +16,7 @@ services:
       - 3308:3389/udp
     volumes:
       - ../../data/win81:/storage
-    restart: unless-stopped
+    restart: ${RESTART_POLICY:-on-failure}
     stop_grace_period: 2m
 
   win81e:
@@ -36,5 +36,5 @@ services:
       - 3381:3389/udp
     volumes:
       - ../../data/win81e:/storage
-    restart: unless-stopped
+    restart: ${RESTART_POLICY:-on-failure}
     stop_grace_period: 2m

compose/legacy/vista.yml

@@ -16,5 +16,5 @@ services:
       - 3306:3389/udp
     volumes:
       - ../../data/vista:/storage
-    restart: unless-stopped
+    restart: ${RESTART_POLICY:-on-failure}
     stop_grace_period: 2m

compose/legacy/win2k.yml

@@ -16,5 +16,5 @@ services:
       - 3300:3389/udp
     volumes:
       - ../../data/win2k:/storage
-    restart: unless-stopped
+    restart: ${RESTART_POLICY:-on-failure}
     stop_grace_period: 2m

compose/legacy/winxp.yml

@@ -16,5 +16,5 @@ services:
       - 3305:3389/udp
     volumes:
       - ../../data/winxp:/storage
-    restart: unless-stopped
+    restart: ${RESTART_POLICY:-on-failure}
     stop_grace_period: 2m

compose/server/win2003.yml

@@ -16,5 +16,5 @@ services:
       - 3303:3389/udp
     volumes:
       - ../../data/win2003:/storage
-    restart: unless-stopped
+    restart: ${RESTART_POLICY:-on-failure}
     stop_grace_period: 2m

compose/server/win2008.yml

@@ -16,5 +16,5 @@ services:
       - 3208:3389/udp
     volumes:
       - ../../data/win2008:/storage
-    restart: unless-stopped
+    restart: ${RESTART_POLICY:-on-failure}
     stop_grace_period: 2m

compose/server/win2012.yml

@@ -16,5 +16,5 @@ services:
       - 3212:3389/udp
     volumes:
       - ../../data/win2012:/storage
-    restart: unless-stopped
+    restart: ${RESTART_POLICY:-on-failure}
     stop_grace_period: 2m

compose/server/win2016.yml

@@ -16,5 +16,5 @@ services:
       - 3316:3389/udp
     volumes:
       - ../../data/win2016:/storage
-    restart: unless-stopped
+    restart: ${RESTART_POLICY:-on-failure}
     stop_grace_period: 2m

compose/server/win2019.yml

@@ -16,5 +16,5 @@ services:
       - 3319:3389/udp
     volumes:
       - ../../data/win2019:/storage
-    restart: unless-stopped
+    restart: ${RESTART_POLICY:-on-failure}
     stop_grace_period: 2m

compose/server/win2022.yml

@@ -16,5 +16,5 @@ services:
       - 3322:3389/udp
     volumes:
       - ../../data/win2022:/storage
-    restart: unless-stopped
+    restart: ${RESTART_POLICY:-on-failure}
     stop_grace_period: 2m

compose/server/win2025.yml

@@ -16,5 +16,5 @@ services:
       - 3325:3389/udp
     volumes:
       - ../../data/win2025:/storage
-    restart: unless-stopped
+    restart: ${RESTART_POLICY:-on-failure}
     stop_grace_period: 2m

compose/tiny/tiny10.yml

@@ -16,5 +16,5 @@ services:
       - 3110:3389/udp
     volumes:
       - ../../data/tiny10:/storage
-    restart: unless-stopped
+    restart: ${RESTART_POLICY:-on-failure}
     stop_grace_period: 2m

compose/tiny/tiny11.yml

@@ -16,5 +16,5 @@ services:
       - 3111:3389/udp
     volumes:
       - ../../data/tiny11:/storage
-    restart: unless-stopped
+    restart: ${RESTART_POLICY:-on-failure}
     stop_grace_period: 2m