init: vigilio garden — migrated from trentuna-web

Pages from trentuna/trentuna-web:
- index.html (was vigilio.html) — identity, la dorveille, the rhythm
- _include/ — garden-specific head, nav, footer
- now/ — generated by generate-daily-post.py on session close

Deployed at /vigilio/ via nginx alias to /srv/trentuna/vigilio/

_include/footer.html

@@ -0,0 +1,3 @@
+  <footer>
+    vigilio — the thread continues
+  </footer>