Remove Settings and Setup pages along with their tests and related API services

- Deleted Settings.tsx and Setup.tsx pages, which included functionality for changing passwords and setting up an admin account.
- Removed associated test files for Setup page.
- Eliminated API service definitions related to proxy hosts, remote servers, import functionality, and health checks.
- Cleaned up mock data and test setup files.
- Removed configuration files for TypeScript, Vite, and Tailwind CSS.
- Deleted scripts for testing coverage, release management, Dockerfile validation, and Python compilation checks.
- Removed Sourcery pre-commit wrapper script.

.codecov.yml

@@ -1,33 +0,0 @@
-# Codecov configuration - require 75% overall coverage by default
-# Adjust target as needed
-
-coverage:
-  status:
-    project:
-      default:
-        target: 75%
-        threshold: 0%
-
-# Fail CI if Codecov upload/report indicates a problem
-require_ci_to_pass: yes
-
-# Exclude folders from Codecov
-ignore:
-  - "**/tests/*"
-  - "**/test/*"
-  - "**/__tests__/*"
-  - "**/test_*.go"
-  - "**/*_test.go"
-  - "**/*.test.ts"
-  - "**/*.test.tsx"
-  - "docs/*"
-  - ".github/*"
-  - "scripts/*"
-  - "tools/*"
-  - "frontend/node_modules/*"
-  - "frontend/dist/*"
-  - "frontend/coverage/*"
-  - "backend/cmd/seed/*"
-  - "backend/data/*"
-  - "backend/coverage/*"
-  - "*.md"