btc: update hash verification process

pkg/arvo/app/glob.hoon

@@ -170,7 +170,14 @@
 ::
 ++  on-watch  on-watch:def
 ++  on-leave  on-leave:def
-++  on-peek   on-peek:def
+::
+++  on-peek
+  |=  =path
+  ^-  (unit (unit cage))
+  ?+  path  (on-peek:def path)
+    [%x %btc-wallet ~]  ``noun+!>(btc-hash)
+  ==
+::
 ++  on-agent
   |=  [=wire =sign:agent:gall]
   ^-  (quip card _this)

pkg/arvo/gen/btc-wallet-check.hoon

@@ -2,4 +2,4 @@
 |=  [[now=time * bec=beak] ~ ~]
 :-  %noun
 :-  %btc-wallet-hash
-.^(@uv %cz (en-beam bec /app/btc-wallet/js/bundle/index/js))
+.^(@uv %gx (en-beam bec(q %glob) /btc-wallet/noun))

pkg/btc-wallet/README.md

@@ -0,0 +1,8 @@
+To verify your version of the bitcoin wallet, run the following command in the
+dojo:
+
+`> +btc-wallet-check`
+
+it should return with the following hash:
+
+`0v9t022.n8kv1.5emkt.s2p9i.hvsa9`