updates caddy, separates caddyfiles, introduces env file for secrets, improves deployment/update process

docker_compose_applications/reverse-proxy/sites/oauthed.caddy

@@ -0,0 +1,50 @@
+(oauth2) {
+	handle /oauth2/* {
+		reverse_proxy oauth2-proxy:4180
+	}
+
+	handle {
+		forward_auth oauth2-proxy:4180 {
+			uri /oauth2/auth
+			copy_headers Authorization
+			copy_headers X-Auth-Request-Email
+
+			@bad status 4xx
+			handle_response @bad {
+				redir https://{args[0]}/oauth2/start
+			}
+		}
+
+		{block}
+	}
+}
+
+registry.cortex.consider-funding.de {
+	import oauth2 registry.cortex.consider-funding.de {
+		reverse_proxy https://ai-registry.neukiefer.de {
+			header_up Host ai-registry.neukiefer.de
+			header_up Authorization {env.REGISTRY_DOWNSTREAM_AUTH}
+		}
+	}
+}
+
+pdf.consider-it.de {
+	import oauth2 pdf.consider-it.de {
+		reverse_proxy http://stirling-pdf:8080
+	}
+}
+
+pseudo.cortex.consider-funding.de {
+	import oauth2 pseudo.cortex.consider-funding.de {
+		reverse_proxy http://10.20.0.2:5000
+	}
+}
+
+enricher.cortex.consider-funding.de {
+	import oauth2 enricher.cortex.consider-funding.de {
+		reverse_proxy https://ai-enricher.neukiefer.de {
+			header_up Host ai-enricher.neukiefer.de
+			header_up Authorization {env.ENRICHER_DOWNSTREAM_AUTH}
+		}
+	}
+}