refactor(#2077): drop impl-history from hive-sh4re asset/path comments

hive-sh4re/src/paths.rs

@@ -2,10 +2,9 @@
 //!
 //! Every process that runs inside an agent container - the harness plus
 //! the out-of-process MCP daemons (bash, matrix, ...) - must resolve the
-//! harness directory layout identically. These helpers previously had to
-//! be hand-mirrored across crates (each copy carrying a "keep in sync"
-//! comment) because there was no shared home for them; they live here so
-//! the resolution exists exactly once.
+//! harness directory layout identically. These helpers live here so the
+//! resolution exists in exactly one place rather than being mirrored
+//! across crates.
 
 use std::path::PathBuf;
 
@@ -14,9 +13,7 @@ use std::path::PathBuf;
 /// split). For pre-split / dev deployments where it isn't set, falls back to
 /// a `harness/` sibling of `HYPERHIVE_STATE_DIR`, and finally to
 /// `/agents/{HIVE_LABEL}/harness` when neither dir env var is present — the
-/// shape the harness derives from its label alone. The label tier subsumes
-/// the resolver `hive-ag3nt` previously kept as its own copy, so the
-/// resolution now genuinely lives here exactly once.
+/// shape the harness derives from its label alone.
 #[must_use]
 pub fn harness_dir() -> PathBuf {
     if let Some(p) = std::env::var_os("HYPERHIVE_HARNESS_DIR") {