feat: zola skeleton with placeholder index

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

config.toml

@@ -0,0 +1,18 @@
+base_url = "https://preview.praxis-am-lienhardplatz.de"
+title = "Praxis am Lienhardplatz"
+description = "Dr. Oliver Riemann, Dr. Angela Krey und Christian Malyga begrüßen Sie in der Hausärztlichen Gemeinschaftspraxis am Lienhardplatz in Wuppertal-Vohwinkel"
+default_language = "de"
+compile_sass = true
+build_search_index = false
+generate_feeds = false
+
+[markdown]
+external_links_target_blank = false
+smart_punctuation = false
+
+[extra]
+# Site-wide values pulled into templates
+practice_name = "Praxis am Lienhardplatz"
+doctors = "Dr. Oliver Riemann, Dr. Angela Krey, Christian Malyga"
+address = "Lienhardplatz 1, 42329 Wuppertal-Vohwinkel"
+phone = "+49 202 123456"  # TODO replace with actual number from contact page during Task 19