Remove static tex files, simplify Dockerfile and build workflow

- Remove brevetkarte.tex (unused static demo, superseded by template)
- Dockerfile: remove unnecessary COPY, workspace is volume-mounted at runtime
- Makefile: remove build-front, default target is now build-personalized
- README: remove references to removed files and targets

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Makefile

@@ -1,37 +1,23 @@
 # Makefile for building Brevet card PDF in Docker
 
 IMAGE_NAME := brevetcard-builder
-TEX_FILE_FRONT := brevetkarte.tex
-TEX_FILE_BACK := brevetkarte-rueckseite.tex
 TEX_FILE_PERSONALIZED := brevetkarte-personalized.tex
-PDF_FILE_FRONT := brevetkarte.pdf
-PDF_FILE_BACK := brevetkarte-rueckseite.pdf
+TEX_FILE_BACK := brevetkarte-rueckseite.tex
 PDF_FILE_PERSONALIZED := brevetkarte-personalized.pdf
+PDF_FILE_BACK := brevetkarte-rueckseite.pdf
 CSV_FILE := Export Brevetkarte.csv
 
-.PHONY: all build clean build-image build-front build-back generate build-personalized run shell help
+.PHONY: all build clean build-image build-back generate build-personalized run shell help
 
 # Default target
-all: build
-
-# Build static demo front side (builds image if needed)
-build: build-image build-front
+all: build-personalized
 
 # Build Docker image
 build-image:
 	@echo "Building Docker image..."
 	docker build -t $(IMAGE_NAME) .
 
-# Compile static demo front side PDF
-build-front:
-	@echo "Compiling front side LaTeX to PDF..."
-	docker run --rm \
-		-v $(PWD):/workspace \
-		$(IMAGE_NAME) \
-		pdflatex -interaction=nonstopmode $(TEX_FILE_FRONT)
-	@echo "PDF generated: $(PDF_FILE_FRONT)"
-
-# Compile back side PDF (always generated from event.yml via generate)
+# Compile back side PDF (after generate)
 build-back: build-image
 	@echo "Compiling back side LaTeX to PDF..."
 	docker run --rm \
@@ -89,19 +75,18 @@ clean-all: clean
 	docker rmi $(IMAGE_NAME) 2>/dev/null || true
 
 # Rebuild from scratch
-rebuild: clean-all build
+rebuild: clean-all build-personalized
 
 # Show help
 help:
 	@echo "Brevet Card PDF Builder"
 	@echo ""
 	@echo "Available targets:"
-	@echo "  make build              - Build Docker image and compile static front side (default)"
+	@echo "  make                    - Generate and compile front + back side PDFs (default)"
 	@echo "  make build-image        - Build Docker image only"
-	@echo "  make build-front        - Compile static demo front side PDF"
 	@echo "  make generate           - Generate tex files from CSV + event.yml"
 	@echo "  make build-personalized - Generate and compile front + back side PDFs"
-	@echo "  make build-back         - Compile back side PDF (after generate)"
+	@echo "  make build-back         - Compile back side PDF only (after generate)"
 	@echo "  make shell              - Open interactive shell in container"
 	@echo "  make clean              - Remove generated files (aux, log, pdf)"
 	@echo "  make clean-all          - Remove all files and Docker image"