Add comprehensive documentation for employee learning platform

- Created handover document outlining design decisions and application functionality.
- Developed implementation plan detailing phased approach for service development.
- Specified ingestion service responsibilities, API surface, and processing pipeline.

app/services/ingestion/src/lib/qdrant.ts

@@ -0,0 +1,14 @@
+import { QdrantClient } from '@qdrant/js-client-rest';
+
+const QDRANT_URL = process.env['QDRANT_URL'] ?? '';
+const QDRANT_API_KEY = process.env['QDRANT_API_KEY'] ?? '';
+
+export const qdrant = new QdrantClient({
+  url: QDRANT_URL,
+  ...(QDRANT_API_KEY ? { apiKey: QDRANT_API_KEY } : {}),
+});
+
+export const QDRANT_COLLECTIONS = {
+  SOURCE_CHUNKS: 'source_chunks',
+  TOPIC_SUMMARIES: 'topic_summaries',
+} as const;