fix(chat): keep rectification sessions findable and keep the delivery card

Rectification answers now advance chat_sessions.updated_at (BUG-704).
A ?c= id missing from the loaded page is fetched before anyone may call
it deleted (BUG-705). The range card no longer has a post-card tie-break
button; live questions leave the card visible with adopt locked
(BUG-706/708). Spoken copy bans 相对支持度 (BUG-709).

Task docs assigned 700-704; qizheng already took 700-703.

frontend/scripts/repair-rectification-session-titles.mjs

@@ -2,7 +2,7 @@ import pg from "pg";
 
 const { Client } = pg;
 
-const MATCH_SQL = `
+const TITLE_MATCH_SQL = `
 session_type = 'birth_time_rectification'
 and title ~ '^[0-9]{1,2}月[0-9]{1,2}日[[:space:]]*·[[:space:]]*生时校正([[:space:]]+[0-9]{2}:[0-9]{2})?$'
 and (
@@ -14,9 +14,9 @@ and (
 )
 `;
 
-const COUNT_SQL = `select count(*)::int as n from public.chat_sessions where ${MATCH_SQL}`;
+const TITLE_COUNT_SQL = `select count(*)::int as n from public.chat_sessions where ${TITLE_MATCH_SQL}`;
 
-const APPLY_SQL = `
+const TITLE_APPLY_SQL = `
 update public.chat_sessions
 set title = case
   when created_at is null then '生时校正'
@@ -25,7 +25,37 @@ set title = case
     || to_char(created_at at time zone 'Asia/Shanghai', 'FMDD')
     || '日 · 生时校正'
 end
-where ${MATCH_SQL}
+where ${TITLE_MATCH_SQL}
+`;
+
+const ACTIVITY_COUNT_SQL = `
+select count(*)::int as n
+from public.chat_sessions as session
+join public.agentic_rectification_cases as case_row
+  on case_row.session_id = session.id
+  and case_row.user_id = session.user_id
+left join lateral (
+  select max(turn.created_at) as last_turn_at
+  from public.agentic_rectification_turns as turn
+  where turn.case_id = case_row.id
+) as turns on true
+where session.session_type = 'birth_time_rectification'
+  and session.updated_at < coalesce(turns.last_turn_at, case_row.last_activity_at)
+`;
+
+const ACTIVITY_APPLY_SQL = `
+update public.chat_sessions as session
+set updated_at = coalesce(turns.last_turn_at, case_row.last_activity_at)
+from public.agentic_rectification_cases as case_row
+left join lateral (
+  select max(turn.created_at) as last_turn_at
+  from public.agentic_rectification_turns as turn
+  where turn.case_id = case_row.id
+) as turns on true
+where case_row.session_id = session.id
+  and case_row.user_id = session.user_id
+  and session.session_type = 'birth_time_rectification'
+  and session.updated_at < coalesce(turns.last_turn_at, case_row.last_activity_at)
 `;
 
 function connectionString() {
@@ -44,14 +74,19 @@ async function main() {
   const client = new Client({ connectionString: connectionString() });
   await client.connect();
   try {
-    const before = await client.query(COUNT_SQL);
-    const n = before.rows[0]?.n ?? 0;
-    console.log(`mismatched_dated_rectification_titles=${n}`);
+    const titlesBefore = await client.query(TITLE_COUNT_SQL);
+    const activityBefore = await client.query(ACTIVITY_COUNT_SQL);
+    console.log(`mismatched_dated_rectification_titles=${titlesBefore.rows[0]?.n ?? 0}`);
+    console.log(`stale_rectification_updated_at=${activityBefore.rows[0]?.n ?? 0}`);
     if (!apply) return;
-    const updated = await client.query(APPLY_SQL);
-    const after = await client.query(COUNT_SQL);
-    console.log(`updated_rows=${updated.rowCount ?? 0}`);
-    console.log(`mismatched_after=${after.rows[0]?.n ?? 0}`);
+    const titlesUpdated = await client.query(TITLE_APPLY_SQL);
+    const activityUpdated = await client.query(ACTIVITY_APPLY_SQL);
+    const titlesAfter = await client.query(TITLE_COUNT_SQL);
+    const activityAfter = await client.query(ACTIVITY_COUNT_SQL);
+    console.log(`updated_title_rows=${titlesUpdated.rowCount ?? 0}`);
+    console.log(`updated_activity_rows=${activityUpdated.rowCount ?? 0}`);
+    console.log(`mismatched_after=${titlesAfter.rows[0]?.n ?? 0}`);
+    console.log(`stale_updated_at_after=${activityAfter.rows[0]?.n ?? 0}`);
   } finally {
     await client.end();
   }