Fix all possible HTTP to HTTPS docs links (#25153)

docs/en/flight_controller/cuav_x7.md

@@ -1,4 +1,11 @@
-# CUAV X7 Flight Controller
+# CUAV X7 Flight Controller (Discontinued)
+
+<Badge type="info" text="Discontinued" /> <!-- 202507 / PX4v1.16 -->
+
+:::warning
+This flight controller has been [discontinued](../flight_controller/autopilot_experimental.md) and is no longer commercially available.
+It has been superseded by the [CUAV X7+](https://doc.cuav.net/controller/x7/en/).
+:::
 
 :::warning
 PX4 does not manufacture this (or any) autopilot.
@@ -40,7 +47,6 @@ They should be used by preference as they contain the most complete and up to da
 
 - Main FMU Processor: STM32H743
 - On-board sensors:
-
   - Accelerometer/Gyroscope: ICM-20689
   - Accelerometer/Gyroscope: ICM-20649
   - Accelerometer/Gyroscope: BMI088
@@ -81,7 +87,7 @@ When it runs PX4 firmware, only 8 pwm works, the remaining 6 pwm are still being
 
 ## Connections (Wiring)
 
-[CUAV X7 Wiring Quickstart](http://doc.cuav.net/flight-controller/x7/en/quick-start/quick-start-x7.html)
+[CUAV X7 Wiring Quickstart](https://doc.cuav.net/controller/x7/en/quick-start/quick-start-x7-plus.html)
 
 ## Size and Pinouts
 
@@ -173,5 +179,5 @@ The complete set of supported configurations can be seen in the [Airframes Refer
 ## Further info
 
 - [Quick start](http://doc.cuav.net/flight-controller/x7/en/quick-start/quick-start-x7.html)
-- [CUAV docs](http://doc.cuav.net)
+- [CUAV docs](https://doc.cuav.net/)
 - [x7 schematic](https://github.com/cuav/hardware/tree/master/X7_Autopilot)