chore: 升级 Trellis 并精简规则（09-05-trellis-upgrade-rule-cleanup）

.agents/skills/trellis-continue/SKILL.md

@@ -31,7 +31,7 @@ Shows the Phase Index (Plan / Execute / Finish) with routing + skill mapping.
 
 - `status=planning` + no `prd.md` → **1.1** (load `trellis-brainstorm`)
 - `status=planning` + `prd.md` only → decide whether the task is lightweight or complex. Lightweight can move to **1.4** review; complex returns to **1.1** to add `design.md` + `implement.md`.
-- `status=planning` + complex artifacts complete + sub-agent jsonl not curated (only the seed `_example` row) → **1.3**
+- `status=planning` + complex artifacts complete + sub-agent jsonl not curated (empty, or only a legacy `_example` placeholder row) → **1.3**
 - `status=planning` + required artifacts complete + required jsonl curated or inline mode → **1.4** (ask for start review; only run `task.py start` after user confirms)
 - `status=in_progress` + implementation not started → **2.1**
 - `status=in_progress` + implementation done, not yet checked → **2.2**