fix: 对照《财务处Skill002》验收整改并升版 v1.0.2

- 状态标签：C3 触发且 D 未判 → 待补录，优先级对齐需求 §6.2
- broadcast-monthly 逐项目增量 emit，任务中心可见进行中进度
- progress_reports 回填 project_id；新增 items_json/updated_at；旧库重建式安全迁移（含回归测试）
- 简报：TITLE 转义防注入、章节对齐 §10（独立「暂付款/结题提醒」）、页脚逐字统一
- 金标准测试 +17：±10%/20% 阈值恰界、C2 钳位、N2 反例、C3 逐字段、HTML 转义、async+cron 定位守护、迁移回归
- 文档 v1.1（开发文档 + REQUIREMENTS）：ERROR:<CODE> <message>、reports_brief、--all-status、skill-detail 表外挂载、C1 level=warn
- 落盘验收报告 acceptance-reports/20260924-105401-acceptance.md（338 测试全绿）
- 版本 1.0.1 → 1.0.2（constants / SKILL.md / CHANGELOG 三处对齐）

scripts/db/connection.py

@@ -63,8 +63,10 @@ CREATE TABLE IF NOT EXISTS progress_reports (
     status_tag       TEXT NOT NULL,
     summary          TEXT,
     suggestions_json TEXT,
+    items_json       TEXT,
     report_file      TEXT,
-    created_at       INTEGER NOT NULL DEFAULT (unixepoch())
+    created_at       INTEGER NOT NULL DEFAULT (unixepoch()),
+    updated_at       INTEGER NOT NULL DEFAULT (unixepoch())
 )
 """
 
@@ -157,8 +159,10 @@ _PROGRESS_REPORTS_COLUMNS: tuple[dict[str, object], ...] = (
     ),
     _col("summary", "播报摘要", "三段式播报文本（现状/诊断/建议）。", visible=0, display_type="textarea"),
     _col("suggestions_json", "建议清单", "建议条目（JSON 数组，默认隐藏）。", visible=0, display_type="textarea"),
+    _col("items_json", "规则明细", "C/D/N 规则命中明细（JSON 数组，默认隐藏）。", visible=0, display_type="textarea"),
     _col("report_file", "简报文件", "《经费执行简报》HTML 文件路径。", visible=0),
     _col("created_at", "创建时间", "报告创建时间（Unix 秒级时间戳，自动生成）。"),
+    _col("updated_at", "更新时间", "报告更新时间（Unix 秒级时间戳，自动维护）。"),
 )
 
 _ALERT_RULES_COLUMNS: tuple[dict[str, object], ...] = (
@@ -194,9 +198,41 @@ def _init_fund_projects_metadata(cursor) -> None:
     )
 
 
+def _ensure_progress_reports_columns(cursor) -> None:
+    """旧库迁移：CREATE TABLE IF NOT EXISTS 不会给已有表加新字段。
+
+    SQLite ``ALTER TABLE ... ADD COLUMN`` 不允许非常量默认值（``unixepoch()``），
+    因此缺 ``items_json`` / ``updated_at`` 时按当前标准 DDL 重建表并拷贝历史数据
+    （progress_reports 为只读播报记录，量级小；无外键，重建安全）。
+    """
+    cursor.execute("PRAGMA table_info(progress_reports)")
+    cols = [str(row[1]) for row in cursor.fetchall()]
+    target = (
+        "id", "batch_no", "project_id", "project_no", "project_name", "pi_name",
+        "as_of", "spend_rate", "time_progress", "deviation", "status_tag",
+        "summary", "suggestions_json", "items_json", "report_file",
+        "created_at", "updated_at",
+    )
+    if all(name in cols for name in target):
+        return
+    shared = [name for name in cols if name in target and name != "updated_at"]
+    cursor.execute("ALTER TABLE progress_reports RENAME TO _progress_reports_legacy")
+    cursor.execute(_PROGRESS_REPORTS_DDL)
+    if shared:
+        col_list = ", ".join(shared)
+        cursor.execute(
+            f"INSERT INTO progress_reports ({col_list}) "
+            f"SELECT {col_list} FROM _progress_reports_legacy"
+        )
+    cursor.execute("DROP TABLE _progress_reports_legacy")  # 连同其旧索引一并删除
+    cursor.execute(_PROGRESS_REPORTS_INDEX)
+
+
 def _init_progress_reports_metadata(cursor) -> None:
     cursor.execute(_PROGRESS_REPORTS_DDL)
     cursor.execute(_PROGRESS_REPORTS_INDEX)
+    _ensure_progress_reports_columns(cursor)
+    init_updated_at_trigger(cursor, "progress_reports")
     upsert_table_metadata(
         cursor,
         table_name="progress_reports",