Reduce pub visibility: hippocampus, subconscious internals

hippocampus: cursor navigation, transcript parsing, similarity
functions to pub(crate). counters::open() made private.

subconscious: all format_* prompts helpers to pub(super),
load_defs and keys_to_replay_items made private,
consolidate_full_with_progress made private.

Co-Authored-By: Proof of Concept <poc@bcachefs.org>

src/subconscious/consolidate.rs

@@ -25,7 +25,7 @@ pub fn consolidate_full(store: &mut Store) -> Result<(), String> {
     consolidate_full_with_progress(store, &|_| {})
 }
 
-pub fn consolidate_full_with_progress(
+fn consolidate_full_with_progress(
     store: &mut Store,
     on_progress: &dyn Fn(&str),
 ) -> Result<(), String> {