fix: resolve architecture disconnects and codebase weaknesses

- Standardize MessageRecord types — single source of truth from @bete/shared
- Clean up config: remove unused GUILD_ID/TEXT_GUILD_ID/TEXT_CHANNEL_ID, fix WEBSERVER_PORT default (3001), remove default admin password
- Move mascot_chat_messages table to Drizzle schema with proper migration
- Remove runtime DDL (CREATE TABLE IF NOT EXISTS) from mascot-chat repository
- Remove phantom analytics/ module from documentation
- Add better-sqlite3 dependency to root devDependencies
- Replace 'as any' casts with proper type assertions across AI moderation
- Add error logging to silent catch blocks in LLM client
- Apply Biome formatting and import organization

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

services/discord-gateway/src/modules/ai-moderation/aiAnalyzer.ts

@@ -413,7 +413,7 @@ async function processIndividualFallback(
       type: "individual",
       message,
       skipNormalAnalysis: false,
-    } as any)) as
+    } as unknown)) as
       | { ok: true; results: AnalysisResult[] }
       | { ok: false; results: AnalysisResult[]; error: string };
 
@@ -443,7 +443,7 @@ async function processIndividualFallback(
         type: "individual",
         message,
         skipNormalAnalysis: true,
-      } as any)) as
+      } as unknown)) as
         | { ok: true; results: AnalysisResult[] }
         | { ok: false; results: AnalysisResult[]; error: string };