docs: M5d-2 checklist: given-test lifetimes and cron AND

session_slot and the scheduler tests held a temporary JSON Value across
statements (E0716). Cron now pins DOM and DOW as AND, which the given tests
had not. Gate counts from task 04 on move up by one.

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

docs/plans/M5d2/07-loopd-scheduler-cron.md

@@ -82,20 +82,20 @@ Do not change heartbeat behaviour. Do not add a sleep.
   --test jobs --test cron`: every test passes, 6 in `scheduler_cron`.
 - [ ] **5. Check.** `git diff --stat` lists exactly `crates/loopd/src/scheduler.rs`.
 - [ ] **6. Run the gate.** `cargo fmt --all`, then `make gate`, timeout 600000 ms. Last line
-  `gate: ok`. Test count **1556** (1550 before, plus 6).
+  `gate: ok`. Test count **1557** (1551 before, plus 6).
 - [ ] **7. Log and commit.** Task cell `M5d2/07-loopd-scheduler-cron`. Stage with
   `git add crates/loopd docs/implementer-log.md Cargo.lock`, then commit as `AGENTS.md` says.
 
 ## Done when
 
-- `make gate` prints `gate: ok` with 1556 tests.
+- `make gate` prints `gate: ok` with 1557 tests.
 - `git diff HEAD~1 --stat` lists only `crates/loopd/src/scheduler.rs`,
   `crates/loopd/tests/scheduler_cron.rs` and the log.
 
 ## Stop and report if
 
 - The branch check fails; step 2 differs (tests do not compile, or a different assertion
-  fails); `cargo check` warns; a test fails; the gate count is not 1556; you reuse a session
+  fails); `cargo check` warns; a test fails; the gate count is not 1557; you reuse a session
   across runs; you send `slots.main`; you set a speaker; you skip leftovers that are not busy;
   a heartbeat test fails.