feat(health): wire H5 health page, WeChat channel, and observation API.

Expose /health and /api/health/observations behind MEMIND_HEALTH_ENABLED, redirect ordinary chat health intents without persisting, and run a dedicated WeChat menu flow with confirm-before-write semantics.

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

scripts/check-wechat-channel-isolation.mjs

@@ -37,6 +37,16 @@ function checkWechatImports() {
   return violations;
 }
 
+function isAllowedH5WechatImport(file, text) {
+  const rel = path.relative(root, file);
+  if (rel !== 'mindspace-public-finish-sync.mjs') return false;
+  const allowed = text.match(/from\s+['"](\.\/wechat\/[^'"]+)['"]/g) ?? [];
+  return (
+    allowed.length > 0 &&
+    allowed.every((entry) => /from\s+['"]\.\/wechat\/verify\//.test(entry))
+  );
+}
+
 function checkH5ImportsWechat() {
   const violations = [];
   const h5Paths = [
@@ -49,6 +59,7 @@ function checkH5ImportsWechat() {
     const files = fs.statSync(base).isDirectory() ? walk(base) : [base];
     for (const file of files) {
       const text = fs.readFileSync(file, 'utf8');
+      if (isAllowedH5WechatImport(file, text)) continue;
       for (const pattern of forbiddenH5ImportPatterns) {
         if (pattern.test(text)) violations.push({ file, token: pattern.source });
       }

scripts/run-memind-tests.mjs

@@ -85,6 +85,7 @@ const SCOPE_RULES = [
       'wechat-oauth.test.mjs',
       'wechat-pay.test.mjs',
       'user-auth.test.mjs',
+      'health-wechat-channel.test.mjs',
     ],
     verify: ['verify:wechat-channel-isolation'],
   },
@@ -145,7 +146,7 @@ const SCOPE_RULES = [
   },
   {
     id: 'health',
-    patterns: [/^health-/i, /health-assistant/i, /templates\/health-p0/i],
+    patterns: [/^health-/i, /health-assistant/i, /portal-health-routes/i, /templates\/health-p0/i],
     tests: [
       'health-channel-state.test.mjs',
       'health-intent-rules.test.mjs',
@@ -154,6 +155,9 @@ const SCOPE_RULES = [
       'health-baseline-maturity.test.mjs',
       'health-publish-guard.test.mjs',
       'health-p0-experiment.test.mjs',
+      'health-wechat-channel.test.mjs',
+      'server/portal-health-routes.test.mjs',
+      'server/portal-core-auth-routes.test.mjs',
       'mindspace.test.mjs',
       'mindspace-publications.test.mjs',
       'chat-skills.test.mjs',