refactor(Core/Scripts): move Outland gossip handlers to database

[Nyeriah]

Changes Proposed

Move simple gossip handlers from C++ scripts to database conditions + SmartAI for 5 Outland NPCs:

• Haldor the Compulsive (23484) & Arcanist Xorith (23483) — Shattrath flask vendors: reputation-gated vendor (Exalted with 3 factions)
• Zephyr (25967) — Reputation-gated teleport to Caverns of Time (Revered+ Keepers of Time)
• Drake Dealer Hurlunk (23489) — Reputation-gated vendor (Exalted with Netherwing)
• Flanis Swiftwing (21727) & Kagrosh (21725) — Quest-gated item delivery

How Has This Been Tested?

Requires in-game testing:

• Flask vendors show vendor option only when exalted with all 3 required factions, rejection text otherwise
• Zephyr shows teleport option only when Revered+ with Keepers of Time, casts teleport spell on select
• Drake Dealer Hurlunk shows vendor option only when Exalted with Netherwing
• Flanis gives pack only when quest 10583 is incomplete and player doesn't have item
• Kagrosh gives pack only when quest 10601 is incomplete and player doesn't have item

Issues Addressed

Continuation of #25207 — moving hardcoded gossip handlers to database handling.

AI Usage Disclosure

Generated with Claude Code (Claude Opus 4.6)

[Copilot]

Pull request overview

Moves several simple Outland NPC gossip behaviors out of C++ scripts into DB-driven conditions and SmartAI, reducing hardcoded gossip handlers and aligning with the ongoing effort to data-drive gossip logic (per #25207).

Changes:

• Removed C++ gossip scripts for Shattrath flask vendors, Zephyr teleport, Drake Dealer Hurlunk, and Flanis/Kagrosh item delivery.
• Added DB conditions to gate gossip options/text by reputation, quest state, and item ownership.
• Added SmartAI entries to perform teleport/item delivery actions on gossip selection.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 3 comments.

File	Description
src/server/scripts/Outland/zone_shattrath_city.cpp	Removes C++ gossip handlers for flask vendors and Zephyr and unregisters their script classes.
src/server/scripts/Outland/zone_shadowmoon_valley.cpp	Removes C++ gossip handlers for Drake Dealer Hurlunk and Flanis/Kagrosh and unregisters their script classes.
data/sql/updates/pending_db_world/rev_1774580000_gossip_outland.sql	Introduces DB conditions + SmartAI equivalents for the removed gossip handlers.

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