chore(工作区): 全量入库 + 补齐 .gitignore（以工作区为准）

- 变更规模：新增 514 / 修改 62 / 重命名 155 / 删除 4（归档重组与文档轮次）
- .gitignore 修：`归档/**/db-cwd归一-备份-*/` —— 原规则写绝对层级（归档/db-cwd归一-…），
  目录搬进 归档/配置与备份/ 后**静默失效**，43 MB 的 DB 备份又变成未跟踪
- .gitignore 补：嵌套 git 内部数据（归档/内嵌git-20261008/、归档/skills-git-旧线-20261007/dotgit-原样移出/）
- .gitignore 补：运行态与部署副本（.workbuddy/collab/、.workbuddy/tools/、.workbuddy/.load-pending、.workbuddy/tmp-*）
- .gitignore 补：备份件（*.bak-*）
- 未跟踪文件从 2190 降到 890（其余为 归档/ 归档件与 .workbuddy/memory/ 知识文件，按口径入库）

归档/接续历史/机制排查/S12_一次性排期盘点_20261002.py

@@ -0,0 +1,34 @@
+import sqlite3, sys, json
+sys.stdout.reconfigure(encoding="utf-8", errors="replace")
+
+DB = r"E:/ProgramData/.workbuddy/workbuddy.db"
+c = sqlite3.connect(DB, timeout=15)
+c.execute("PRAGMA busy_timeout=8000")
+
+TARGET = ("deleted_at IS NULL AND status='ACTIVE' AND schedule_type='once' "
+          "AND next_run_at IS NULL")
+
+n = c.execute(f"select count(*) from automations where {TARGET}").fetchone()[0]
+print("BEFORE_ONCE_ACTIVE_NO_NEXT =", n)
+print("TOTAL_ROWS =", c.execute("select count(*) from automations").fetchone()[0])
+print("ACTIVE_ALL =", c.execute(
+    "select count(*) from automations where deleted_at is null and status='ACTIVE'"
+).fetchone()[0])
+print("RECURRING_ACTIVE =", c.execute(
+    "select count(*) from automations where deleted_at is null and status='ACTIVE' "
+    "and schedule_type='recurring'").fetchone()[0])
+print("--- group: schedule_type x status x next_run_is_null ---")
+for r in c.execute(
+    "select schedule_type, status, (next_run_at is null), count(*) from automations "
+    "where deleted_at is null group by 1,2,3 order by 1,2,3"):
+    print("  ", r)
+print("--- target rows (full) ---")
+cols = [d[1] for d in c.execute("PRAGMA table_info(automations)")]
+print("COLUMNS =", cols)
+for r in c.execute(f"select * from automations where {TARGET}"):
+    d = dict(zip(cols, r))
+    print("  ", json.dumps({k: d.get(k) for k in
+          ("id", "name", "status", "schedule_type", "next_run_at", "created_at",
+           "updated_at", "deleted_at")}, ensure_ascii=False))
+print("INTEGRITY_BEFORE =", c.execute("PRAGMA integrity_check").fetchone()[0])
+c.close()