docs: M5d-2: after gate: ok, do not sum test results

Task 01 told Ornith to add up every `test result:` N passed. A greedy
sed kept the last digit (1512 became 1022) and it stopped with the
correct T1 and given test uncommitted. T50/T59: the last line of
make gate is the count; summing is not a stop.

Co-Authored-By: Grok 4.6 <noreply@x.ai>

docs/plans/M5d2/06-loopd-scheduler-heartbeat.md

@@ -197,7 +197,8 @@ pass so it runs once.
 
   `grep -c '^## heartbeat-prompt-unreadable$' docs/runbook.md` prints `1`.
 - [ ] **6. Run the gate.** `cargo fmt --all`, then `make gate`, timeout 600000 ms. Last line
-  `gate: ok`. Test count **1551** (1545 before, plus 6).
+  `gate: ok`. Test count **1551** (1545 before, plus 6). After `gate: ok`, do not add up
+  `test result:` lines.
 - [ ] **7. Log and commit.** Task cell `M5d2/06-loopd-scheduler-heartbeat`. Stage with
   `git add crates/loopd docs/runbook.md docs/implementer-log.md Cargo.lock`, then commit as
   `AGENTS.md` says.
@@ -212,7 +213,7 @@ pass so it runs once.
 ## Stop and report if
 
 - The branch check fails; a "before" block is not found exactly once; step 2 differs; `cargo
-  check` warns; a test fails; the gate count is not 1551; you sleep in a test; you post to
+  check` warns; a test fails; the gate's last line is not `gate: ok`; you sleep in a test; you post to
   Mattermost; you send `slots.main`; you set a speaker; you `chmod 000`; `Held` stays private;
   `hold` returns `Result<_, ()>`.