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.

Makefile

@@ -1,98 +0,0 @@
-.PHONY: help install test build run clean docker-build docker-run release
-
-# Default target
-help:
-	@echo "CaddyProxyManager+ Build System"
-	@echo ""
-	@echo "Available targets:"
-	@echo "  install                - Install all dependencies (backend + frontend)"
-	@echo "  test                   - Run all tests (backend + frontend)"
-	@echo "  build                  - Build backend and frontend"
-	@echo "  run                    - Run backend in development mode"
-	@echo "  clean                  - Clean build artifacts"
-	@echo "  docker-build           - Build Docker image"
-	@echo "  docker-build-versioned - Build Docker image with version from .version file"
-	@echo "  docker-run             - Run Docker container"
-	@echo "  docker-dev             - Run Docker in development mode"
-	@echo "  release                - Create a new semantic version release (interactive)"
-	@echo "  dev                    - Run both backend and frontend in dev mode (requires tmux)"
-
-# Install all dependencies
-install:
-	@echo "Installing backend dependencies..."
-	cd backend && go mod download
-	@echo "Installing frontend dependencies..."
-	cd frontend && npm install
-
-# Run all tests
-test:
-	@echo "Running backend tests..."
-	cd backend && go test -v ./...
-	@echo "Running frontend lint..."
-	cd frontend && npm run lint
-
-# Build backend and frontend
-build:
-	@echo "Building frontend..."
-	cd frontend && npm run build
-	@echo "Building backend..."
-	cd backend && go build -o bin/api ./cmd/api
-
-# Run backend in development mode
-run:
-	cd backend && go run ./cmd/api
-
-# Run frontend in development mode
-run-frontend:
-	cd frontend && npm run dev
-
-# Clean build artifacts
-clean:
-	@echo "Cleaning build artifacts..."
-	rm -rf backend/bin backend/data
-	rm -rf frontend/dist frontend/node_modules
-	go clean -cache
-
-# Build Docker image
-docker-build:
-	docker-compose build
-
-# Build Docker image with version
-docker-build-versioned:
-	@VERSION=$$(cat .version 2>/dev/null || echo "dev"); \
-	BUILD_DATE=$$(date -u +'%Y-%m-%dT%H:%M:%SZ'); \
-	VCS_REF=$$(git rev-parse HEAD 2>/dev/null || echo "unknown"); \
-	docker build \
-		--build-arg VERSION=$$VERSION \
-		--build-arg BUILD_DATE=$$BUILD_DATE \
-		--build-arg VCS_REF=$$VCS_REF \
-		-t cpmp:$$VERSION \
-		-t cpmp:latest \
-		.
-
-# Run Docker containers (production)
-docker-run:
-	docker-compose up -d
-
-# Run Docker containers (development)
-docker-dev:
-	docker-compose -f docker-compose.yml -f docker-compose.dev.yml up
-
-# Stop Docker containers
-docker-stop:
-	docker-compose down
-
-# View Docker logs
-docker-logs:
-	docker-compose logs -f
-
-# Development mode (requires tmux)
-dev:
-	@command -v tmux >/dev/null 2>&1 || { echo "tmux is required for dev mode"; exit 1; }
-	tmux new-session -d -s cpm 'cd backend && go run ./cmd/api'
-	tmux split-window -h -t cpm 'cd frontend && npm run dev'
-	tmux attach -t cpm
-
-# Create a new release (interactive script)
-release:
-	@./scripts/release.sh