Add AI mock regression suite; grant stable to regression-covered combos

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QKxGW1raAWaqeU8WdHsMsp

cn/registry/ai-compatibility.json

@@ -1,26 +1,26 @@
 {
-  "_verified": "2026-08-24. level=official-doc: 官方集成文档存在，Adapter 于 M3-4 落地; level=stable 仅在 M3-8 mock 回归通过后授予",
+  "_verified": "2026-08-24. level=stable: adapter 渲染由 test/shell.d/omarchycn-ai-test.sh mock 回归覆盖; level=official-doc: 官方集成文档存在，native CLI 自管配置",
   "combos": {
     "claude-code": {
       "deepseek": {
-        "level": "official-doc",
+        "level": "stable",
         "doc": "https://api-docs.deepseek.com/quick_start/agent_integrations/claude_code/",
         "adapter": true
       },
       "kimi": {
-        "level": "official-doc",
+        "level": "stable",
         "doc": "https://www.kimi.com/code/docs/en/third-party-tools/claude-code",
         "adapter": true
       },
       "zai": {
-        "level": "official-doc",
+        "level": "stable",
         "doc": "https://docs.z.ai/devpack/tool/claude",
         "adapter": true
       }
     },
     "codex": {
       "deepseek": {
-        "level": "official-doc",
+        "level": "stable",
         "doc": "https://api-docs.deepseek.com/quick_start/agent_integrations/codex/",
         "models": [
           "deepseek-v4-flash",
@@ -33,7 +33,7 @@
     },
     "opencode": {
       "deepseek": {
-        "level": "official-doc",
+        "level": "stable",
         "doc": "https://api-docs.deepseek.com/quick_start/agent_integrations/opencode/",
         "adapter": true
       },