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/hippocampus/counters.rs

@@ -18,7 +18,7 @@ fn db_path() -> PathBuf {
 }
 
 /// Open (or create) the counters database.
-pub fn open() -> Result<Database, String> {
+fn open() -> Result<Database, String> {
     Database::create(db_path()).map_err(|e| format!("open counters db: {}", e))
 }