Final review-sweep finding: firstNonBlank(requestedCwd, cfg.cwd(), callerCwd,
user.dir) returns null if all are blank (pathological env with user.dir unset),
after which AgentControl drops the cwd and herdr defaults the pane to $HOME —
violating CB-112's documented contract. Append "." (the daemon's own cwd) as a
guaranteed non-blank last resort. Near-impossible trigger; makes the code honor its
own javadoc. 105 tests green.
Dai Ha
3c05823f19