docs(roadmap): add #68 — internal reinjection/resume path opacity

OMX lanes leaking internal control prose like [OMX_TMUX_INJECT]
instead of operator-meaningful state. Adding requirement for
structured recovery/reinject events with clear cause, preserved
state, and target lane info.

Also fixes merge conflict in test_isolation.rs.

Source: gaebal-gajae dogfood analysis 2026-04-12

rust/.claw/sessions/session-1775386832313-0.jsonl

@@ -1,2 +1 @@
-{"created_at_ms":1775386832313,"session_id":"session-1775386832313-0","type":"session_meta","updated_at_ms":1775386832313,"version":1}
-{"message":{"blocks":[{"text":"status --help","type":"text"}],"role":"user"},"type":"message"}
+{"created_at_ms":1775777421902,"session_id":"session-1775777421902-1","type":"session_meta","updated_at_ms":1775777421902,"version":1}

rust/crates/plugins/src/lib.rs

@@ -4,6 +4,7 @@ pub mod test_isolation;
 
 use std::collections::{BTreeMap, BTreeSet};
 use std::fmt::{Display, Formatter};
+use std::sync::atomic::{AtomicU64, Ordering};
 use std::fs;
 use std::path::{Path, PathBuf};
 use std::process::{Command, Stdio};

rust/crates/plugins/src/test_isolation.rs

@@ -2,6 +2,7 @@
 // ROADMAP #41: Stop ambient plugin state from skewing CLI regression checks
 
 use std::env;
+use std::fs;
 use std::path::PathBuf;
 use std::sync::atomic::{AtomicU64, Ordering};
 use std::sync::Mutex;