docs: M5d-2 gate count 1508 and OpenCode model id

The M5d-1 gate on straylight is 1508, so every M5d-2 expected count moves up by one.
OpenCode 1.15.10 serves Ornith as llama.cpp/ornith-1.5-35b-a3b.

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

docs/plans/M5d2/10-memoryd-tiers.md

@@ -203,20 +203,20 @@ becomes
 - [ ] **5. Check.** `git diff --stat` lists the files in "Every place that changes" except
   the new tests and starter (those are untracked until `git add`).
 - [ ] **6. Run the gate.** `cargo fmt --all`, then `make gate`, timeout 600000 ms. Last line
-  `gate: ok`. Test count **1572** (1566 before, plus 6).
+  `gate: ok`. Test count **1573** (1567 before, plus 6).
 - [ ] **7. Log and commit.** Task cell `M5d2/10-memoryd-tiers`. Stage with
   `git add crates/bxcore crates/memoryd crates/bxctl config/jobs docs/implementer-log.md
   Cargo.lock`, then commit as `AGENTS.md` says.
 
 ## Done when
 
-- `make gate` prints `gate: ok` with 1572 tests.
+- `make gate` prints `gate: ok` with 1573 tests.
 - `git diff HEAD~1 --stat` lists only the files this task names plus the log.
 
 ## 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 1572; you edit `cli_memory.rs`; identity
+  check` warns; a test fails; the gate count is not 1573; you edit `cli_memory.rs`; identity
   entries show a non-zero hit count; untrusted notes are omitted; you add a cron crate; you
   special-case the name `tier` in `loopd`.