test(integration): add Suite 13 — config mutations (options 7, 8, 9), 100 tests passing

Tests restore server.conf from backup (option 7, no restart), IPv6 toggle
cancel path (option 8), performance config cancel and set bandwidth (option 9).

Tighten Suite 9 start/stop timeouts from 20s to 8s — verified clean start/stop
completes in under 5s on test hardware (Raspberry Pi 3).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: beadon

tests/integration_test.sh

@@ -450,7 +450,7 @@ it "option s → 1 starts OpenVPN server"
 select_option "s"
 expect_send "Select action" "1"  5
 # start runs /etc/init.d/openvpn start + sleep 2 — wait for status line then gate
-wait_for "Server started\|already running" 20
+wait_for "Server started\|already running" 8
 check wait_for "Press Enter" 5
 send ""
 check wait_for "Select an option:" 5
@@ -472,9 +472,9 @@ fi
 it "option s → 2 stops OpenVPN server"
 select_option "s"
 expect_send "Select action"              "2"   5
-expect_send "Stop OpenVPN server"        "yes" 10
+expect_send "Stop OpenVPN server"        "yes" 5
 # stop runs /etc/init.d/openvpn stop + sleep 2 — wait for status line then gate
-wait_for "Server stopped\|stopped successfully\|already stopped" 20
+wait_for "Server stopped\|stopped successfully\|already stopped" 8
 check wait_for "Press Enter" 5
 send ""
 check wait_for "Select an option:" 5
@@ -628,6 +628,47 @@ select_option "4"
 wait_for "Detected WAN IP\|Detected DDNS" 20
 check wait_for "Select an option:" 20
 
+# ── Suite 13: Config Mutations (options 7, 8, 9) ─────────────────────────────
+# option 7 — restore server.conf from backup (backup created by Suite 2 option 5)
+# option 8 — toggle IPv6 (default disabled; answer 'no' to keep disabled)
+# option 9 — configure performance: cancel, then set bandwidth limit
+# option 7 has no Press Enter gate — returns directly to menu.
+
+printf "\n--- [%s] Suite 13: Config Mutations (options 7, 8, 9) ---\n" "$(ts)"
+
+it "option 7 restores server.conf from backup (no restart)"
+select_option "7"
+expect_send "Backup found.*Continue\|Continue" "yes" 5
+wait_for "Configuration restored" 5
+expect_send "Restart OpenVPN" "n" 5
+check wait_for "Select an option:" 5
+
+it "server.conf still exists after restore"
+check assert_file_exists "$OVPN_CONF"
+
+it "option 8 shows IPv6 status and cancels when answered 'no'"
+select_option "8"
+wait_for "IPv6 Configuration" 5
+wait_for "currently DISABLED\|currently ENABLED" 5
+expect_send "Enable IPv6\|Select option" "no" 5
+expect_send "Press Enter" "" 5
+check wait_for "Select an option:" 5
+
+it "option 9 → 2 cancels performance config"
+select_option "9"
+expect_send "Select option" "2" 5
+wait_for "Cancelled" 5
+expect_send "Press Enter" "" 5
+check wait_for "Select an option:" 5
+
+it "option 9 → 1 sets bandwidth limit"
+select_option "9"
+expect_send "Select option"          "1"       5
+expect_send "Enter bandwidth limit"  "1000000" 5
+wait_for "Bandwidth limit set to" 5
+expect_send "Press Enter" "" 5
+check wait_for "Select an option:" 5
+
 # ── Done ──────────────────────────────────────────────────────────────────────
 
 quit_script