Initial madcat-caddy: Caddy + Cloudflare DNS + caddy-security

Forked from tengu-apps/tengu-caddy, adding:
- caddy-security plugin (OAuth 2.0, Basic Auth, JWT)
- Gitea apt registry publishing in CI
- Linux-only builds (arm64 + amd64)
- Replaces/conflicts with caddy and tengu-caddy packages

Makefile

@@ -0,0 +1,65 @@
+VERSION := 2.11.2
+REVISION := 1
+CADDY_PLUGINS := github.com/caddy-dns/cloudflare@v0.2.4&p=github.com/greenpau/caddy-security@v1.1.62
+
+ARCH := $(shell dpkg --print-architecture 2>/dev/null || uname -m | sed 's/x86_64/amd64/' | sed 's/aarch64/arm64/')
+OS := linux
+PACKAGE_NAME := madcat-caddy
+DEB_NAME := $(PACKAGE_NAME)_$(VERSION)-$(REVISION)_$(ARCH).deb
+
+BUILD_DIR := build
+STAGING_DIR := $(BUILD_DIR)/staging
+
+.PHONY: all clean build deb install
+
+all: deb
+
+clean:
+	rm -rf $(BUILD_DIR)
+
+# Download pre-built Caddy with plugins from official API
+$(BUILD_DIR)/caddy:
+	@mkdir -p $(BUILD_DIR)
+	@echo "Downloading Caddy $(VERSION) for $(OS)/$(ARCH) with plugins..."
+	curl -sL "https://caddyserver.com/api/download?os=$(OS)&arch=$(ARCH)&p=$(CADDY_PLUGINS)" -o $@
+	chmod +x $@
+	@echo "Verifying binary..."
+	@file $@
+
+build: $(BUILD_DIR)/caddy
+
+# Build .deb package
+deb: $(BUILD_DIR)/caddy
+	@echo "Building .deb package..."
+	@mkdir -p $(STAGING_DIR)/DEBIAN
+	@mkdir -p $(STAGING_DIR)/usr/bin
+	@mkdir -p $(STAGING_DIR)/usr/lib/systemd/system
+	@mkdir -p $(STAGING_DIR)/etc/caddy
+
+	@# Binary
+	cp $(BUILD_DIR)/caddy $(STAGING_DIR)/usr/bin/caddy
+
+	@# Systemd service
+	cp debian/caddy.service $(STAGING_DIR)/usr/lib/systemd/system/
+
+	@# Default Caddyfile
+	cp debian/Caddyfile $(STAGING_DIR)/etc/caddy/
+
+	@# Control file
+	sed 's/{{VERSION}}/$(VERSION)-$(REVISION)/g; s/{{ARCH}}/$(ARCH)/g' debian/control > $(STAGING_DIR)/DEBIAN/control
+
+	@# Scripts
+	cp debian/postinst $(STAGING_DIR)/DEBIAN/
+	cp debian/prerm $(STAGING_DIR)/DEBIAN/
+	cp debian/postrm $(STAGING_DIR)/DEBIAN/
+	chmod 755 $(STAGING_DIR)/DEBIAN/postinst $(STAGING_DIR)/DEBIAN/prerm $(STAGING_DIR)/DEBIAN/postrm
+
+	@# Conffiles
+	cp debian/conffiles $(STAGING_DIR)/DEBIAN/
+
+	@# Build package
+	dpkg-deb --build $(STAGING_DIR) $(BUILD_DIR)/$(DEB_NAME)
+	@echo "Built: $(BUILD_DIR)/$(DEB_NAME)"
+
+install: deb
+	sudo dpkg -i $(BUILD_DIR)/$(DEB_NAME)