refactor: remove unused text analysis module and integrate Qdrant enhancements

- Deleted the text analysis prompt constants and helpers as they are no longer needed.
- Added batch search functionality for Qdrant to optimize vector searches.
- Implemented methods for deleting expired Qdrant points and invalidating cache based on content hash.
- Updated text batch processor to use new timeout configurations and modified content building for moderation prompts.
- Enhanced text cache store to support new Qdrant integration and improved cache invalidation logic.
- Introduced a new user reputation model with a more nuanced trust scoring system, including penalties and rewards for user behavior.
- Added unit tests for the new trust model to ensure correctness of penalty and trust gain calculations.
- Updated configuration schema to reflect new timeout settings and removed deprecated OpenAI moderation keys.

services/discord-gateway/vitest.config.ts

@@ -0,0 +1,23 @@
+import { fileURLToPath } from "node:url";
+import { defineConfig } from "vitest/config";
+
+// Resolves the "@/*" tsconfig path alias so vitest can import src modules
+// (the pre-existing test suite was broken without this).
+export default defineConfig({
+  resolve: {
+    alias: {
+      "@": fileURLToPath(new URL("./src", import.meta.url)),
+    },
+  },
+  test: {
+    include: ["tests/**/*.test.ts"],
+    // Loaded before module imports — satisfies the config singleton
+    // (DISCORD_TOKEN required) and DB-agnostic pure-function tests.
+    env: {
+      DISCORD_TOKEN: "test-discord-token",
+      DATABASE_URL: "postgres://localhost:5432/test",
+      AI_ANALYSIS_ENABLED: "true",
+      AI_LLM_API_KEY: "sk-test",
+    },
+  },
+});