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.

.github/workflows/quality-checks.yml

@@ -1,58 +0,0 @@
-name: Quality Checks
-
-on:
-  push:
-    branches: [ main, development, 'feature/**' ]
-  pull_request:
-    branches: [ main, development ]
-
-jobs:
-  backend-quality:
-    name: Backend (Go)
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
-
-      - name: Set up Go
-        uses: actions/setup-go@44694675825211faa026b3c33043df3e48a5fa00 # v6.0.0
-        with:
-          go-version: '1.24.4'
-          cache-dependency-path: backend/go.sum
-
-      - name: Run Go tests
-        working-directory: backend
-        run: go test -v ./...
-
-      - name: Run golangci-lint
-        uses: golangci/golangci-lint-action@d6238b002a20823d52840fda27e2d4891c5952dc # v4.0.1
-        with:
-          version: latest
-          working-directory: backend
-          args: --timeout=5m
-        continue-on-error: true
-
-  frontend-quality:
-    name: Frontend (React)
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
-
-      - name: Set up Node.js
-        uses: actions/setup-node@a0853c24544627f65ddf259abe73b1d18a591444 # v5.0.0
-        with:
-          node-version: '20.19.5'
-          cache: 'npm'
-          cache-dependency-path: frontend/package-lock.json
-
-      - name: Install dependencies
-        working-directory: frontend
-        run: npm ci
-
-      - name: Run frontend tests
-        working-directory: frontend
-        run: npm test
-
-      - name: Run frontend lint
-        working-directory: frontend
-        run: npm run lint
-        continue-on-error: true