refactor: reorganize project structure for better maintainability

- Move Docker files to build/docker/
- Move CI/CD configs to build/ci/
- Move deployment configs to deploy/ (helm, k8s, argocd)
- Move config files to config/
- Move scripts to tools/
- Consolidate assets to assets/ (Reflex compatible)
- Add data/ directory for local data (gitignored)
- Update all path references in Makefile, Dockerfile, CI configs
- Add comprehensive README files for build/ and deploy/
- Update project documentation

Benefits:
- Clear separation of concerns
- Cleaner root directory
- Better developer experience
- Enterprise-grade structure
- Improved maintainability

Makefile

@@ -73,11 +73,12 @@ clean:
 	find . -type d -name ".mypy_cache" -exec rm -rf {} +
 	find . -type d -name "*.egg-info" -exec rm -rf {} +
 	rm -rf .coverage htmlcov/
-	rm -rf dist/ build/
+	rm -rf dist/
 
 # Docker commands
 docker-build:
 	DOCKER_BUILDKIT=$(DOCKER_BUILDKIT) docker build \
+		-f build/docker/Dockerfile \
 		-t $(IMAGE_NAME):$(VERSION) \
 		-t $(IMAGE_NAME):latest \
 		--build-arg VERSION=$(VERSION) \
@@ -95,23 +96,23 @@ docker-login:
 	@docker login $(REGISTRY)
 
 docker-up:
-	docker-compose up -d
+	docker-compose -f build/docker/docker-compose.yml up -d
 
 docker-down:
-	docker-compose down
+	docker-compose -f build/docker/docker-compose.yml down
 
 # Helm commands
 helm-lint:
-	helm lint helm/peikarband
+	helm lint deploy/helm/peikarband
 
 helm-template:
-	helm template $(HELM_RELEASE) helm/peikarband --debug
+	helm template $(HELM_RELEASE) deploy/helm/peikarband --debug
 
 helm-package:
-	helm package helm/peikarband --destination .
+	helm package deploy/helm/peikarband --destination .
 
 helm-install:
-	helm install $(HELM_RELEASE) helm/peikarband \
+	helm install $(HELM_RELEASE) deploy/helm/peikarband \
 		--namespace $(NAMESPACE) \
 		--create-namespace \
 		--set image.repository=$(REGISTRY)/$(IMAGE_NAME) \
@@ -119,7 +120,7 @@ helm-install:
 		--wait
 
 helm-upgrade:
-	helm upgrade --install $(HELM_RELEASE) helm/peikarband \
+	helm upgrade --install $(HELM_RELEASE) deploy/helm/peikarband \
 		--namespace $(NAMESPACE) \
 		--set image.repository=$(REGISTRY)/$(IMAGE_NAME) \
 		--set image.tag=$(VERSION) \
@@ -135,8 +136,8 @@ k8s-deploy: docker-build docker-push helm-upgrade
 
 # Database
 migrate:
-	alembic upgrade head
+	alembic -c config/alembic.ini upgrade head
 
 seed:
-	python3 scripts/seed_database.py
+	python3 tools/scripts/seed_database.py