add more dune deps + use public_names

src/dune

@@ -36,9 +36,7 @@
   caqti-miou
   caqti-mnet
   caqti-driver-pgx
-  pgx
-  ;
-  )
+  pgx)
  (foreign_stubs
   (language c)
   (names manifest)))
@@ -64,21 +62,28 @@
   signatures
   api)
  (libraries
-  b32
+  (re_export b32)
   ;
+  angstrom
   fmt
   logs
   logs.fmt
+  fpath
+  cohttp
   bin
   caqti
   jsont
   jsont.bytesrw
   digestif
   kdf.hkdf
+  zarith
+  eqaf
   mirage-crypto-ec
   mirage-crypto-pk
-  fpath
-  cohttp))
+  ptime
+  uri
+  ;
+  ))
 
 (library ; crockford base32
  (name b32)