Add interactions and behaviours for Al-Kharid npcs and flyer item

[V0lcanic]

This adds the remaining interactions and behaviours of npcs and items in Al-Kharid from the todo list of #1222. Other adjustments that were missed for Daemonheim have also been added, fully restoring the area to how it was in 2011.

Changed:
al_kharid.npc-spawns.toml
-Fixed a few incorrect/broken spawns. Source: osrs live server, osrs.world 634.

al_kharid.npcs.toml
-Marked shop = "gem_trader" to [gem_trader].

AliTheLeafletDropper.kt
-Adds the Al Kharid flyer-dropper NPC script: it starts an overhead chat timer on spawn, cycles random market-style barks, and gives the NPC a talk-to dialogue that changes after The Feud. It also adds flyer handout logic with duplicate/full-inventory checks plus the item-on-NPC rejection line for outdated flyers. Source: osrs live server, rs3 live server.

AlKharidFlyer.kt
-Adds a readable flyer item interaction for al_kharid_flyer, showing Ali Morrisane’s market promo text and then flagging the voucher as out of date.

AlKharidWarrior.kt
-Adds Al Kharid warrior assist behaviour: when one warrior is attacked, nearby living warriors can flag themselves as helpers, shout a line, and auto-attack the same player. It also resets the help/assistance state on spawn and death so the chain stays clean between fights.

GemTrader.kt
-Adds the Al Kharid gem trader interaction: talking to the NPC now offers a simple buy-gems prompt that opens the gem_trader shop, and the separate trade option also opens the shop directly.

Unrelated changes:
EstrithDaemonheim.kt
-Puts Estrith on her Daemonheim patrol, then listens for movement and only schedules dialogue when she lands on one of the patrol tiles. On those valid tiles, she has a random chance to speak after a short delay, with special lines reserved for the marked coordinates. Source: https://www.youtube.com/watch?v=MgbqYFJuHCQ, https://www.youtube.com/watch?v=xVoxwy6y3ZM, https://www.youtube.com/watch?v=OKUyt4sBEhY, https://www.youtube.com/watch?v=dwdswoak1dU (and the other 4 parts), https://runescape.wiki/w/Estrith.

daemonheim.npc-spawns.toml
-Adds 1 missing "listless_dead_2" spawn. Source: osrs.world 634, https://www.youtube.com/watch?v=TwIcZL9IM9s 3:53.

daemonheim.npcs.toml
-Marked interacts = false for [fremennik_shipmaster_daemonheim] and [sonje]. Source: https://www.youtube.com/watch?v=TbFDLs-aOac 1:38.

daemonheim.objs.toml
-Adds object [tent_daemonheim] and examine text.

daemonheim.patrols.toml
-Adds Estrith’s patrol loop with 20-tick pauses on each tile and a backtracking route from the final point back to the start.

falador.item-spawns.toml
-Adds a missing 2x bronze arrow spawn. Source: osrs live server, rs3 live server.