Add NPC interaction system with memory and quest generation

- Introduced a new NPC system with dynamic NPCs and conversation handling.
- Implemented NPC memory using SQLite to log conversations and manage relationships.
- Added commands for talking to NPCs, listing available NPCs, and generating quests.
- Updated database schema to support NPC conversations and relationships.
- Refactored code structure to separate concerns into cogs and handlers.

LLM NPC/bot.py

@@ -0,0 +1,62 @@
+# main.py
+import discord
+from discord.ext import commands
+import os
+from dotenv import load_dotenv
+import threading
+import itertools
+from npc_memory import NPCMemory
+from npc_handler import NPCHandler
+from cogs.npc import NPCCog
+
+
+class MyNewHelp(commands.MinimalHelpCommand):
+    async def send_pages(self):
+        destination = self.get_destination()
+        for page in self.paginator.pages:
+            emby = discord.Embed(description=page)
+            await destination.send(embed=emby)
+
+
+class Client(commands.Bot):
+    def __init__(self):
+        super().__init__(
+            command_prefix=self.iterate_prefix("py"),
+            strip_after_prefix=True,
+            case_insensitive=True,
+            intents=discord.Intents.all(),
+            help_command=MyNewHelp(),
+        )
+    def iterate_prefix(self, prefix):
+        prefixes = list(map(''.join, itertools.product(*zip(prefix.upper(), prefix.lower()))))
+        print(prefixes)
+        
+        return prefixes
+
+    async def setup_hook(self):  # overwriting a handler
+        cogs_folder = f"{os.path.abspath(os.path.dirname(__file__))}/cogs"
+        for filename in os.listdir(cogs_folder):
+            if filename.endswith(".py"):
+                try:
+                    await self.load_extension(f"cogs.{filename[:-3]}")
+                except Exception as e:
+                    print(f"Failed to load {filename}: {e}")
+        memory = NPCMemory()
+        npc_handler = NPCHandler(memory)
+        await self.add_cog(NPCCog(self, npc_handler))
+        await self.tree.sync()
+        print("Loaded cogs")
+
+
+def main():
+    load_dotenv()
+    client = Client()
+    token = os.getenv("TOKEN")
+    if token is not None:
+        client.run(token)
+    else:
+        print("Token is missing.")
+
+
+if __name__ == "__main__":
+    main()