feat: refactor post-install hooks to manifest-driven system

- Replace hardcoded hooks with external scripts in scripts/hooks/
- Add 4 generic hook scripts (copy-standard-lua, copy-aio-lua, mod-ale-patches, black-market-setup)
- Update all 28 module hook definitions in config/modules.json
- Remove legacy hook functions from manage-modules.sh
- Add 26 new Eluna Lua modules to .env.template (disabled by default)
- Add 3 new AIO modules to .env.template (disabled by default)
- Implement proper environment variable interface for hooks
- Add comprehensive documentation and refactoring summary

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.env.template

@@ -198,6 +198,42 @@ MODULE_ASSISTANT=0
 MODULE_REAGENT_BANK=0
 MODULE_BLACK_MARKET_AUCTION_HOUSE=0
 
+# =====================
+# Eluna Lua Script Modules (requires MODULE_ELUNA=1)
+# =====================
+# Collection of Eluna scripts from elunascripts.github.io
+MODULE_ELUNA_SCRIPTS=0
+MODULE_EVENT_SCRIPTS=0
+MODULE_LEVEL_UP_REWARD=0
+MODULE_ACCOUNTWIDE_SYSTEMS=0
+MODULE_EXCHANGE_NPC=0
+MODULE_RECRUIT_A_FRIEND=0
+MODULE_PRESTIGE_DRAFT_MODE=0
+MODULE_LUA_AH_BOT=0
+MODULE_HARDCORE_MODE=0
+MODULE_NPCBOT_EXTENDED_COMMANDS=0
+MODULE_MULTIVENDOR=0
+MODULE_TREASURE_CHEST_SYSTEM=0
+MODULE_ACTIVE_CHAT=0
+MODULE_ULTIMATE_FULL_LOOT_PVP=0
+MODULE_HORADRIC_CUBE=0
+MODULE_CARBON_COPY=0
+MODULE_TEMP_ANNOUNCEMENTS=0
+MODULE_ZONE_CHECK=0
+MODULE_SEND_AND_BIND=0
+MODULE_DYNAMIC_TRADER=0
+MODULE_LOTTERY_LUA=0
+MODULE_DISCORD_NOTIFIER=0
+MODULE_GLOBAL_MAIL_BANKING_AUCTIONS=0
+
+# =====================
+# AIO (Azeroth Interface Override) Modules (requires MODULE_AIO=1)
+# =====================
+# Client-server interface communication modules
+MODULE_AIO=0
+MODULE_TRANSMOG_AIO=0
+MODULE_AIO_BLACKJACK=0
+
 # =====================
 # Rebuild automation
 # =====================