feat(llm): add qwen3-coder-next to catalog and Known Models column

Register qwen/qwen3-coder-next under the openrouter provider and extend
llm-catalog with a "Known Models" column so all cataloged models are
discoverable.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

markitect/helper/cli.py

@@ -30,21 +30,29 @@ _PROVIDER_INFO = {
         "default_model": "anthropic/claude-sonnet-4",
         "env_var": "OPENROUTER_API_KEY",
         "key_file": "apikey-openrouter.txt",
+        "models": [
+            "anthropic/claude-sonnet-4",
+            "openrouter/aurora-alpha",
+            "qwen/qwen3-coder-next",
+        ],
     },
     "claude-code": {
         "default_model": None,
         "env_var": None,
         "key_file": None,
+        "models": [],
     },
     "gemini": {
         "default_model": "gemini-2.5-flash",
         "env_var": "GEMINI_API_KEY",
         "key_file": "apikey-geminifree.txt",
+        "models": ["gemini-2.5-flash"],
     },
     "openai": {
         "default_model": "gpt-4.1-mini",
         "env_var": "OPENAI_API_KEY",
         "key_file": "apikey-chatgpt.txt",
+        "models": ["gpt-4.1-mini"],
     },
 }
 
@@ -183,9 +191,11 @@ def llm_catalog(output_format):
     rows = []
     for provider, info in _PROVIDER_INFO.items():
         key_status = _probe_key_status(provider, info)
+        models = info.get("models", [])
         rows.append({
             "provider": provider,
             "default_model": info["default_model"] or "(none, uses CLI)",
+            "models": ", ".join(models) if models else "\u2014",
             "env_var": info["env_var"] or "\u2014",
             "key_file": info["key_file"] or "\u2014",
             "key_status": key_status,
@@ -197,6 +207,7 @@ def llm_catalog(output_format):
         headers = {
             "provider": "Provider",
             "default_model": "Default Model",
+            "models": "Known Models",
             "env_var": "API Key Env Var",
             "key_file": "Key File",
             "key_status": "Key Status",