Add user context for mentioned users in messages

- Bot now knows who is talking to it (display name, username, nickname)
- Bot recognizes other users mentioned in messages
- Includes user's display name, username, nickname, and top role
- Context is added to system prompt for AI awareness

src/daemon_boyfriend/cogs/ai_chat.py

@@ -97,7 +97,7 @@ class AIChatCog(commands.Cog):
         # Show typing indicator while generating response
         async with message.channel.typing():
             try:
-                response_text = await self._generate_response(message.author.id, content)
+                response_text = await self._generate_response(message, content)
 
                 # Split and send response
                 chunks = split_message(response_text)
@@ -125,16 +125,56 @@ class AIChatCog(commands.Cog):
 
         return content.strip()
 
-    async def _generate_response(self, user_id: int, user_message: str) -> str:
+    def _get_mentioned_users_context(self, message: discord.Message) -> str | None:
+        """Get context about mentioned users (excluding the bot).
+
+        Args:
+            message: The Discord message
+
+        Returns:
+            Formatted string with user info, or None if no other users mentioned
+        """
+        # Filter out the bot from mentions
+        other_mentions = [
+            m for m in message.mentions if self.bot.user is None or m.id != self.bot.user.id
+        ]
+
+        if not other_mentions:
+            return None
+
+        user_info = []
+        for user in other_mentions:
+            # Get member info if available (for nickname, roles, etc.)
+            member = message.guild.get_member(user.id) if message.guild else None
+
+            if member:
+                info = f"- {member.display_name} (username: {member.name})"
+                if member.nick and member.nick != member.name:
+                    info += f" [nickname: {member.nick}]"
+                # Add top role if not @everyone
+                if len(member.roles) > 1:
+                    top_role = member.roles[-1]  # Highest role
+                    if top_role.name != "@everyone":
+                        info += f" [role: {top_role.name}]"
+            else:
+                info = f"- {user.display_name} (username: {user.name})"
+
+            user_info.append(info)
+
+        return "Mentioned users:\n" + "\n".join(user_info)
+
+    async def _generate_response(self, message: discord.Message, user_message: str) -> str:
         """Generate an AI response for a user message.
 
         Args:
-            user_id: Discord user ID
-            user_message: The user's message
+            message: The Discord message object
+            user_message: The user's message content
 
         Returns:
             The AI's response text
         """
+        user_id = message.author.id
+
         # Get conversation history
         history = self.conversations.get_history(user_id)
 
@@ -144,8 +184,23 @@ class AIChatCog(commands.Cog):
         # Check if we should search the web
         search_context = await self._maybe_search(user_message)
 
-        # Build system prompt with search context if available
+        # Get context about mentioned users
+        mentioned_users_context = self._get_mentioned_users_context(message)
+
+        # Build system prompt with additional context
         system_prompt = self.ai_service.get_system_prompt()
+
+        # Add info about the user talking to the bot
+        author_info = f"\n\nYou are talking to: {message.author.display_name} (username: {message.author.name})"
+        if isinstance(message.author, discord.Member) and message.author.nick:
+            author_info += f" [nickname: {message.author.nick}]"
+        system_prompt += author_info
+
+        # Add mentioned users context
+        if mentioned_users_context:
+            system_prompt += f"\n\n--- {mentioned_users_context} ---"
+
+        # Add search results if available
         if search_context:
             system_prompt += (
                 "\n\n--- Web Search Results ---\n"