Adds screentips for scanning raptors (#95421)

## About The Pull Request

This adds screentips for scanning raptors - both with the PDA RaptorDex
app, and the standalone handheld version.

Also fixed a bug where the "scanned" balloon alert didn't properly
appear for the, bc it'd try to display the balloon alert to the
raptor...

<img width="329" height="419" alt="2026-03-15 (1773602977)"
src="https://github.com/user-attachments/assets/8a16f5c4-f65b-4931-ac0b-7c165f4781de"
/>

<img width="285" height="349" alt="2026-03-15 (1773603014)"
src="https://github.com/user-attachments/assets/827e2e1a-5243-4763-8532-b4fe2246c745"
/>

## Why It's Good For The Game

I initially didn't realize that you had to _right click_ to scan raptors
with the PDA app, so like, I decided to add screentips to make that
clearer.

also bugfix good.

## Changelog
🆑
qol: Added screentips for scanning raptors with the RaptorDex PDA app
and standalone handheld RaptorDex.
fix: Fixed the handheld RaptorDex not showing the "scanned" balloon
alert when scanning a raptor.
/🆑

code/modules/mob/living/basic/lavaland/raptor/raptor_dex.dm

@@ -7,6 +7,10 @@
 	/// Raptor scan data we have stored
 	var/list/scan_data = list("raptor_scan" = FALSE)
 
+/obj/item/raptor_dex/Initialize(mapload)
+	. = ..()
+	register_item_context()
+
 /obj/item/raptor_dex/ui_interact(mob/user, datum/tgui/ui)
 	ui = SStgui.try_update_ui(user, src, ui)
 	if(!ui)
@@ -61,6 +65,12 @@
 			scan_data["inherited_traits"] += GLOB.raptor_inherit_traits[index]
 
 	playsound(src, 'sound/mobs/non-humanoids/orbie/orbie_send_out.ogg', 20)
-	balloon_alert(my_raptor, "scanned")
+	my_raptor.balloon_alert(user, "scanned")
 	ui_interact(user)
 	return ITEM_INTERACT_SUCCESS
+
+/obj/item/raptor_dex/add_item_context(obj/item/source, list/context, atom/target, mob/living/user)
+	if(!istype(target, /mob/living/basic/raptor))
+		return NONE
+	context[SCREENTIP_CONTEXT_LMB] = "Scan Raptor"
+	return CONTEXTUAL_SCREENTIP_SET