🔥(backend) remove evaluation app

The evaluation module with its test corpus, management command, and
datasets is no longer needed. Remove it along with its INSTALLED_APPS
entry to reduce maintenance surface.

Signed-off-by: Stephan Meijer <me@stephanmeijer.com>

Author: StephanMeijer

CHANGELOG.md

@@ -11,36 +11,3 @@ and this project adheres to
 ## Added
 
 - 🎉(project) Initial release
-- 👷(docker) add arm64 platform support for image builds
-- ✨(backend) add semantic search
-- ✨(backend) add multi-embedding and chunking
-- ✨(backend) add analyzers to full-text search
-- ✨(backend) handle french, english, german and dutch 
-- ✨(backend) add evaluation command
-- backend application
-- helm chart
-- ✨(backend) allow indexation of documents with either empty content or title.
-- ✨(api) new fulltext 'search/' view with OIDC resource server authentication
-- ✨(backend) limit access to documents : public & authenticated with a
-              list of services
-- 🔧(compose) rename docker network 'lasuite-net' as 'lasuite-network'
-- ✨(backend) add demo service for Drive.
-- ✨(backend) add OPENSEARCH_INDEX_PREFIX setting to prevent naming overlapping
-              issues if the opensearch database is shared between apps.
-- ✨(backend) add tags
-- ✨(backend) adapt to conversation RAG
-- ✨(backend) add deletion endpoint
-- ✨(backend) add path filter
-- ✨(backend) add search_type param
-
-## Changed
-
-- 🏗️(backend) switch Python dependency management to uv
-- ✨(backend) allow deletion by tags
-- ♻️(backend) improve the evaluation command
-
-## Fixed
-
-- 🐛(backend) fix missing index creation in 'index/' view
-- 🐛(backend) fix parallel test execution issues
-- 🐛(backend) fix search type value #68