Add 103 script for Tang WeChat intent router shadow and close branch disposition.

Record feature/wechat-intent-channel-separation as merged and provide a reproducible admin-db toggle for Tang canary LLM router shadow on production.

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

docs/branch-disposition.md

@@ -3,6 +3,29 @@
 本文件记录已经完成迁移、但仍可能因为 Git 拓扑或遗留 worktree 被误判为“尚未进入 `main`”的分支。
 它是分支复用、合并、cherry-pick 和清理前的必查清单。
 
+## `feature/wechat-intent-channel-separation`
+
+**状态：禁止再次引用。改动已提交并进入 `origin/main`，该分支保留仅用于只读追溯，不是待合并开发分支。**
+
+审计日期：2026-08-31
+分支 HEAD：`8f88eec2`
+`origin/main` 对应提交：`8f88eec2`
+
+### 原始用途
+
+微信服务号聊天、改页、定时任务分流：频道前缀强制路由、【改页】prompt 钉原文件、改页/URL 强制新会话，避免误进 Goose 聊天烧 token。
+
+### 验证摘要
+
+- `npm run verify:intent-transaction-layer`：63 passed
+- 103 发布 `memind-portal-runtime-20260831-141716-8f88eec2.tar.gz`，8081 健康
+- 103 已为唐启用 WeChat LLM Intent Router shadow（`custom_deepseek` + `deepseek-v4-flash`，canary openid）
+
+### 最终处置
+
+- 保留本地分支名用于审计追溯。
+- 不要从该分支继续开发、merge、cherry-pick 或构建 runtime/artifact。
+
 ## `feature/scheduled-task-wechat-delivery-fix`
 
 **状态：禁止再次引用。改动已提交并进入 `origin/main`，该分支保留仅用于只读追溯，不是待合并开发分支。**

scripts/enable-tang-wechat-intent-router-shadow-103.mjs

@@ -0,0 +1,100 @@
+#!/usr/bin/env node
+/**
+ * Enable WeChat LLM intent router in shadow mode for Tang (103).
+ * Dry-run by default; pass --apply to persist admin config.
+ */
+import process from 'node:process';
+import mysql from 'mysql2/promise';
+import { loadH5Environment } from './load-env.mjs';
+
+loadH5Environment(import.meta.dirname);
+
+const TANG_USER_ID = 'a70ff537-8908-486e-9b6c-042e07cc25db';
+const CONFIG_KEY = 'intent_router';
+const CONFIG_TABLE = 'h5_wechat_admin_config';
+const PREFERRED_PROVIDER = 'custom_deepseek';
+const PREFERRED_MODEL = 'deepseek-v4-flash';
+
+async function ensureTable(pool) {
+  await pool.query(`
+    CREATE TABLE IF NOT EXISTS ${CONFIG_TABLE} (
+      config_key VARCHAR(64) PRIMARY KEY,
+      config_json JSON NOT NULL,
+      updated_by CHAR(36) NULL,
+      updated_at BIGINT NOT NULL
+    ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci
+  `);
+}
+
+async function main() {
+  const apply = process.argv.includes('--apply');
+  if (!process.env.DATABASE_URL) {
+    console.error('DATABASE_URL missing');
+    process.exit(1);
+  }
+
+  const pool = mysql.createPool({ uri: process.env.DATABASE_URL, connectionLimit: 2 });
+  await ensureTable(pool);
+
+  const [identRows] = await pool.query(
+    'SELECT openid FROM h5_user_wechat_identities WHERE user_id = ? LIMIT 1',
+    [TANG_USER_ID],
+  );
+  const openid = identRows[0]?.openid;
+  if (!openid) {
+    console.error('Tang wechat openid not found');
+    process.exit(1);
+  }
+
+  const [providerRows] = await pool.query(
+    `SELECT id, provider_id, default_model FROM h5_llm_provider_keys
+     WHERE status = 'active' AND provider_id = ?
+     LIMIT 1`,
+    [PREFERRED_PROVIDER],
+  );
+  const provider = providerRows[0];
+  if (!provider) {
+    console.error(`Provider ${PREFERRED_PROVIDER} not found`);
+    process.exit(1);
+  }
+
+  const config = {
+    enabled: true,
+    shadowMode: true,
+    modelProviderKeyId: provider.id,
+    model: PREFERRED_MODEL,
+    minConfidence: 0.65,
+    timeoutMs: 4000,
+    canaryOpenids: [openid],
+  };
+
+  const payload = {
+    apply,
+    tangUserId: TANG_USER_ID,
+    openid,
+    provider: { id: provider.id, providerId: provider.provider_id, model: PREFERRED_MODEL },
+    config,
+  };
+
+  if (apply) {
+    const now = Date.now();
+    await pool.query(
+      `INSERT INTO ${CONFIG_TABLE} (config_key, config_json, updated_by, updated_at)
+       VALUES (?, ?, ?, ?)
+       ON DUPLICATE KEY UPDATE
+         config_json = VALUES(config_json),
+         updated_by = VALUES(updated_by),
+         updated_at = VALUES(updated_at)`,
+      [CONFIG_KEY, JSON.stringify(config), TANG_USER_ID, now],
+    );
+    payload.updatedAt = now;
+  }
+
+  console.log(JSON.stringify(payload, null, 2));
+  await pool.end();
+}
+
+main().catch((err) => {
+  console.error(err);
+  process.exit(1);
+});