Update zone_stormwind_city.cpp

[PassCody]

Changes proposed:
Fully rewrote the C++ AI for Lord Gregor Lescovar, Marzon the Silent Blade, Spybot, and Tyrion to restore the complete retail‑accurate quest sequence.

Corrected escort path assignments:

Lescovar now uses DB path 14034 (Library → Platform)

Spybot now uses DB path 70850 (Platform → Library)

Fixed the dialogue phase logic:

Phase 4 no longer terminates the sequence prematurely

Phases 5–7 now execute correctly (Marzon + Lescovar conversation, quest credit, hostile phase)

Restored all missing NPC dialogues, including:

Guard interaction

Tyrion → Spybot → Tyriona sequence

Lescovar’s “Leave us.”

Marzon’s Defias conversation

Implemented proper quest credit (AreaExploredOrEventHappens) before the hostile phase.

Fixed guard despawn logic and synchronized it with Lescovar’s dialogue.

Improved summon handling, faction switching, and combat linking between Lescovar and Marzon.

Cleaned up AI state handling, timers, and GUID tracking for stability.

Target branch(es):
335/6x

Issues addressed: Fixes #
(Insert your issue number here)

Tests performed
✔ Builds successfully on TrinityCore 3.3.5a (latest master)

✔ Tested in‑game on a clean database

✔ Verified correct execution of:

✔Quest acceptance dialogue

✔Spybot movement + morph into Priestess Tyriona

✔Guard interaction

✔Lescovar escort path

✔Guard despawn event

✔Marzon spawn + movement

✔Full 3‑step conversation between Lescovar and Marzon

✔Quest credit awarded at correct moment

✔Both NPCs turning hostile after dialogue

✔ No Lua scripts required; pure C++ implementation

✔ No regressions found in Stormwind NPC behavior

Known issues and TODO list:

None. Script is working 100% well.