router: move most configuration into modules with options

modules/router/secrets/cf-api-key.age

@@ -0,0 +1,5 @@
+age-encryption.org/v1
+-> ssh-ed25519 D2MY/A Kj69kavxx+ATNHP5pX0JtGggU76f9uRwkZp2HbjwiWc
+SbU3jIcQzUzaQjRHzVSoW1WKiUj+1ijbkUKqVb406fY
+--- vMV0TcchFvxw1xetQQZ0xVi2KwjLFRfZBM1gl7BGbGI
+<EFBFBD><EFBFBD>1<10><><EFBFBD><EFBFBD>K<EFBFBD><<3C>

modules/router/secrets/wireguard/wg0-peer-Yura-TPX13-psk.age

@@ -0,0 +1,5 @@
+age-encryption.org/v1
+-> ssh-ed25519 D2MY/A cRVo1AetNYKsb28kGpe6mVpoCyfNcRibeBYhJuXbbEY
+k8XL4XEv4FM6sfU/TOFTg4vlKm61409No/TpCEjTnSk
+--- mT9w1vnx2FrzWw+Zt1wV6UJ+mjHTizrUPVeaTisYQ74
+=<3D>q-So<><6F>pn<70><6E><EFBFBD><EFBFBD><EFBFBD>I<EFBFBD><49><EFBFBD>Z֠i<D6A0>'<27><><EFBFBD>"%M<><06><>C&

modules/router/secrets/wireguard/wg0-private-key.age

@@ -0,0 +1,5 @@
+age-encryption.org/v1
+-> ssh-ed25519 D2MY/A Xg7XTl/qJqVqvXsHNKcoICq74DeOlquN1CEn1PwxlVY
+FqmPdDgmuUrwZPLW56RhW8o1VXr5l2Xms6IVebpi7bA
+--- nLT/bC55EvoXK6f7DYbMhD3I8Z122bxeGVw1PCds2IM
+!<><7F><05>Dl<44><6C><EFBFBD><EFBFBD><EFBFBD><EFBFBD>;<3B><>KXq8<71>4<EFBFBD><34><EFBFBD><EFBFBD>+b<><62>p_q4B<34><42>'8<>%<25>cI<63><49>D<EFBFBD>t<><0C><05>V~;v*<2A><>W<EFBFBD>-<2D>,[<5B>tݑ<74>