fix: 修复语音首播并完善消息解析与会话兼容性

(cherry picked from commit 214090192f5dfc91cdec0269bad434d3e22394d8)

tests/stability-compat.test.mjs

@@ -0,0 +1,64 @@
+import assert from 'node:assert/strict'
+import test from 'node:test'
+import { parseMessageContent } from '../src/main/message-parser.ts'
+import { classifyStickerHttpFailure } from '../src/shared/sticker.ts'
+
+test('merged forwarding messages expose expandable record items', () => {
+  const content = `
+    <msg><appmsg><title>项目讨论记录</title><type>19</type>
+      <recorditem><![CDATA[
+        <recordinfo>
+          <dataitem datatype="1">
+            <sourcename><![CDATA[张三]]></sourcename>
+            <sourcetime>2026-08-01 10:00</sourcetime>
+            <datadesc><![CDATA[第一条消息]]></datadesc>
+          </dataitem>
+          <dataitem datatype="3">
+            <sourcename><![CDATA[李四]]></sourcename>
+            <sourcetime>2026-08-01 10:01</sourcetime>
+          </dataitem>
+        </recordinfo>
+      ]]></recorditem>
+    </appmsg></msg>`
+
+  const parsed = parseMessageContent(content, 49)
+  assert.equal(parsed.type, 'forwardBundle')
+  assert.equal(parsed.title, '项目讨论记录')
+  assert.deepEqual(
+    parsed.items.map((item) => [item.sender, item.text]),
+    [
+      ['张三', '第一条消息'],
+      ['李四', '[图片]']
+    ]
+  )
+})
+
+test('unknown message types are not misclassified as text', () => {
+  const parsed = parseMessageContent('<unsupported><payload>1</payload></unsupported>', 9999)
+  assert.equal(parsed.type, 'unknown')
+  assert.equal(parsed.messageType, 9999)
+})
+
+test('sticker 403 with expired timestamp is classified as an expired link', () => {
+  const result = classifyStickerHttpFailure(
+    403,
+    'https://example.invalid/sticker?expire=1700000000',
+    1_800_000_000_000
+  )
+  assert.equal(result.code, 'link_expired')
+})
+
+test('sticker authorization and removal failures remain distinct', () => {
+  assert.equal(
+    classifyStickerHttpFailure(401, 'https://example.invalid/sticker').code,
+    'authentication_required'
+  )
+  assert.equal(
+    classifyStickerHttpFailure(403, 'https://example.invalid/sticker').code,
+    'access_denied'
+  )
+  assert.equal(
+    classifyStickerHttpFailure(404, 'https://example.invalid/sticker').code,
+    'resource_removed'
+  )
+})