Add comprehensive test suite to improve coverage and fix igdblib bugs

- Add extensive tests for igdblib.py (0% -> 100% coverage expected)
- Add tests for leonardo_draw.py AI image generation
- Add tests for openai_responder.py with GPT integration
- Add tests for discord_bot.py bot functionality
- Add extended tests for ai_responder.py edge cases
- Fix critical bugs in igdblib.py:
  * Fix platforms() method treating name as string instead of list
  * Fix game_info() method missing endpoint parameter
  * Add safe dictionary access with .get() methods

Coverage improvements target areas with lowest coverage to maximize impact.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

fjerkroa_bot/igdblib.py

@@ -60,18 +60,19 @@ class IGDBQuery(object):
         )
         ret = {}
         for p in platforms:
-            names = p["name"]
+            names = [p["name"]]
             if "alternative_name" in p:
                 names.append(p["alternative_name"])
             if "abbreviation" in p:
                 names.append(p["abbreviation"])
-            family = self.platform_families()[p["id"]] if "platform_family" in p else None
+            family = self.platform_families().get(p.get("platform_family")) if "platform_family" in p else None
             ret[p["id"]] = {"names": names, "family": family}
         return ret
 
     def game_info(self, name):
         game_info = self.generalized_igdb_query(
             {"name": name},
+            "games",
             [
                 "id",
                 "name",