Add player action logging for admin operations

Introduces a new addPlayerAction method in adminRepository and logPlayerAction in adminService to record admin actions on player accounts. Updates relevant admin routes to log actions such as bans, unbans, forced name changes, and skin resets. Also improves error messages in adminService for consistency and clarity.

routes/admin/players/textures.js

@@ -5,6 +5,7 @@ const adminService = require("../../../services/adminService")
 
 router.delete("/skin/:uuid", adminService.hasPermission("RESET_PLAYER_SKIN"), async (req, res) => {
     const result = await userService.resetSkin(req.params.uuid)
+    await adminService.logPlayerAction("USING_BANNED_SKIN")
     return res.status(200).json(result)
 })
 

routes/admin/players/username.js

@@ -6,6 +6,7 @@ const adminService = require("../../../services/adminService")
 router.patch("/:uuid", adminService.hasPermission("CHANGE_PLAYER_USERNAME"), async (req, res) => {
     const { newUsername } = req.body
     const result = await userService.changeUsername(req.params.uuid, newUsername)
+    await adminService.logPlayerAction("FORCED_NAME_CHANGE")
     return res.status(200).json(result)
 })