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/M5d2/01-loopd-session-slot.md

@@ -90,10 +90,10 @@ become
   --test compact_turn`: every test passes, 4 in `session_slot` and the others as before.
 - [ ] **5. Check.** `git diff --stat` lists exactly `crates/loopd/src/turn.rs`.
 - [ ] **6. Run the gate.** `cargo fmt --all`, then `make gate`, with a shell timeout of 600000 ms.
-  Expected last line: `gate: ok`. The test count is **1512** after this task, 1508 before it,
-  and the 4 new ones are the tests of `session_slot.rs`. To count, add up the `N passed` of
-  every `test result:` line the gate's `cargo test --workspace` printed, and add 1. Never run
-  the gate again only to count.
+  Expected last line: `gate: ok`. That is done counting: **1512** (1508 before, plus the 4 of
+  `session_slot.rs`). After `gate: ok`, do not add up `test result:` lines and do not run
+  `cargo test --workspace`. A `sed` of `.*([0-9]+) passed` keeps only the last digit and
+  reports about 1022.
 - [ ] **7. Log and commit.** Add your row to `docs/implementer-log.md`; its Task cell is
   `M5d2/01-loopd-session-slot`. Stage with
   `git add crates/loopd docs/implementer-log.md Cargo.lock`, then commit as `AGENTS.md` says.
@@ -116,7 +116,6 @@ become
 - The fix seems to need a change anywhere else. It does not; stop and say why you think so.
 - A test outside `session_slot.rs` fails in the gate: check once whether it fails without your
   change (`git stash -u`, run it, `git stash pop`), then stop and report both results.
-- The gate passes with a count other than 1512.
 
 ## What the given tests pin