fix(mindspace): release edited public pages and fix achievements dates

Finish now releases static HTML delivery contracts in a finally block so
re-edited pages are not stuck at HTTP 409, and M成果 groups pages by
Asia/Shanghai calendar dates to avoid duplicate day headings.

Co-authored-by: Cursor <cursoragent@cursor.com>

mindspace-delivery-contract.test.mjs

@@ -5,6 +5,7 @@ import {
   markPageDeliveryContractReady,
   normalizeDeliveryRelativePath,
   preparePageDeliveryContract,
+  releaseMaterializedPageDeliveryContracts,
 } from './mindspace-delivery-contract.mjs';
 
 test('normalizes only safe public HTML delivery paths', () => {
@@ -40,3 +41,43 @@ test('contract lifecycle writes preparing then ready against the same route key'
   assert.equal(await markPageDeliveryContractReady({ pool, userId: 'user-1', relativePath: 'public/form.html' }), true);
   assert.ok(calls.some((call) => call.sql.includes("status = 'ready'")));
 });
+
+test('releaseMaterializedPageDeliveryContracts skips pg_required until allowed', async () => {
+  const calls = [];
+  const pool = {
+    async query(sql, params) {
+      calls.push({ sql, params });
+      if (sql.includes('SELECT id, data_mode')) {
+        const path = params?.[1];
+        if (path === 'public/form.html') {
+          return [[{ id: 'c1', data_mode: 'pg_required', status: 'preparing' }]];
+        }
+        if (path === 'public/report.html') {
+          return [[{ id: 'c2', data_mode: 'static', status: 'preparing' }]];
+        }
+        return [[]];
+      }
+      if (sql.includes("status = 'ready'")) return [{ affectedRows: 1 }];
+      return [{ affectedRows: 0 }];
+    },
+  };
+
+  assert.deepEqual(
+    await releaseMaterializedPageDeliveryContracts({
+      pool,
+      userId: 'user-1',
+      relativePaths: ['public/form.html', 'public/report.html'],
+      allowPgRequired: false,
+    }),
+    ['public/report.html'],
+  );
+  assert.deepEqual(
+    await releaseMaterializedPageDeliveryContracts({
+      pool,
+      userId: 'user-1',
+      relativePaths: ['public/form.html'],
+      allowPgRequired: true,
+    }),
+    ['public/form.html'],
+  );
+});