Add X profile search tool for user lookup

- Created tools/x_profile.py with search_x_profile function
- Supports comprehensive profile information lookup via X API v2
- Includes user fields: name, bio, metrics, verification status, etc.
- Returns YAML-formatted data for agent consumption
- Updated register_x_tools.py to include the new profile search tool
- Successfully tested tool registration with void agent

This enables void to look up detailed information about X users when analyzing conversations or interactions.

🤖 Generated with Claude Code

Co-Authored-By: Claude <[e-mail]>

register_x_tools.py

···
 # Import X post tool
 from tools.x_post import post_to_x, PostToXArgs
 
-# Import X search tool
+# Import X search tools
 from tools.search_x import search_x_posts, SearchXArgs
+from tools.x_profile import search_x_profile, SearchXProfileArgs
 
 letta_config = get_letta_config()
 logging.basicConfig(level=logging.INFO)
···
         "tags": ["x", "twitter", "post", "create", "standalone"]
     },
     
-    # X search tool
+    # X search tools
     {
         "func": search_x_posts,
         "args_schema": SearchXArgs,
         "description": "Get recent posts from a specific X (Twitter) user",
         "tags": ["x", "twitter", "search", "posts", "user"]
+    },
+    {
+        "func": search_x_profile,
+        "args_schema": SearchXProfileArgs,
+        "description": "Look up detailed profile information for an X (Twitter) user",
+        "tags": ["x", "twitter", "profile", "lookup", "user"]
     }
 ]