feat(server): add cloud indexer with Elasticsearch and Manticoresearch providers (#11835)

close CLOUD-137

<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit

- **New Features**
  - Introduced advanced workspace-scoped search and aggregation capabilities with support for complex queries, highlights, and pagination.
  - Added pluggable search providers: Elasticsearch and Manticoresearch.
  - New GraphQL queries, schema types, and resolver support for search and aggregation.
  - Enhanced configuration options for search providers in self-hosted and cloud deployments.
  - Added Docker Compose services and environment variables for Elasticsearch and Manticoresearch.
  - Integrated indexer service into deployment and CI workflows.

- **Bug Fixes**
  - Improved error handling with new user-friendly error messages for search provider and indexer issues.

- **Documentation**
  - Updated configuration examples and environment variable references for indexer and search providers.

- **Tests**
  - Added extensive end-to-end and provider-specific tests covering indexing, searching, aggregation, deletion, and error cases.
  - Included snapshot tests and test fixtures for search providers.

- **Chores**
  - Updated deployment scripts, Helm charts, and Kubernetes manifests to include indexer-related environment variables and secrets.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

.docker/dev/compose.yml.example

@@ -24,8 +24,26 @@ services:
       - 1025:1025
       - 8025:8025
 
+  # https://manual.manticoresearch.com/Starting_the_server/Docker
+  manticoresearch:
+    image: manticoresearch/manticore:${MANTICORE_VERSION:-9.2.14}
+    restart: always
+    ports:
+      - 9308:9308
+    ulimits:
+      nproc: 65535
+      nofile:
+        soft: 65535
+        hard: 65535
+      memlock:
+        soft: -1
+        hard: -1
+    volumes:
+      - manticoresearch_data:/var/lib/manticore
+
 networks:
   dev:
 
 volumes:
   postgres_data:
+  manticoresearch_data: