Add Vercel and OpenRouter to zero-config planoai up defaults

Wires `vercel/*` and `openrouter/*` into the synthesized default config so
`planoai up` with no user config exposes both providers out of the box
(env-keyed via AI_GATEWAY_API_KEY / OPENROUTER_API_KEY, pass-through
otherwise). Registers both in SUPPORTED_PROVIDERS_WITHOUT_BASE_URL so
wildcard model entries validate without an explicit provider_interface.

cli/planoai/config_generator.py

@@ -31,6 +31,8 @@ SUPPORTED_PROVIDERS_WITHOUT_BASE_URL = [
     "zhipu",
     "chatgpt",
     "digitalocean",
+    "vercel",
+    "openrouter",
 ]
 
 CHATGPT_API_BASE = "https://chatgpt.com/backend-api/codex"

cli/planoai/defaults.py

@@ -81,6 +81,21 @@ PROVIDER_DEFAULTS: list[ProviderDefault] = [
         base_url="https://inference.do-ai.run/v1",
         model_pattern="digitalocean/*",
     ),
+    ProviderDefault(
+        name="vercel",
+        env_var="AI_GATEWAY_API_KEY",
+        base_url="https://ai-gateway.vercel.sh/v1",
+        model_pattern="vercel/*",
+    ),
+    # OpenRouter is a first-class provider — the `openrouter/` model prefix is
+    # accepted by the schema and brightstaff's ProviderId parser, so no
+    # provider_interface override is needed.
+    ProviderDefault(
+        name="openrouter",
+        env_var="OPENROUTER_API_KEY",
+        base_url="https://openrouter.ai/api/v1",
+        model_pattern="openrouter/*",
+    ),
 ]
 
 

cli/test/test_config_generator.py

@@ -253,6 +253,42 @@ llm_providers:
     base_url: "http://custom.com/api/v2"
     provider_interface: openai
 
+""",
+    },
+    {
+        "id": "vercel_is_supported_provider",
+        "expected_error": None,
+        "plano_config": """
+version: v0.4.0
+
+listeners:
+  - name: llm
+    type: model
+    port: 12000
+
+model_providers:
+  - model: vercel/*
+    base_url: https://ai-gateway.vercel.sh/v1
+    passthrough_auth: true
+
+""",
+    },
+    {
+        "id": "openrouter_is_supported_provider",
+        "expected_error": None,
+        "plano_config": """
+version: v0.4.0
+
+listeners:
+  - name: llm
+    type: model
+    port: 12000
+
+model_providers:
+  - model: openrouter/*
+    base_url: https://openrouter.ai/api/v1
+    passthrough_auth: true
+
 """,
     },
     {

cli/test/test_defaults.py

@@ -28,6 +28,8 @@ def test_zero_env_vars_produces_pure_passthrough():
     # All known providers should be listed.
     names = {p["name"] for p in cfg["model_providers"]}
     assert "digitalocean" in names
+    assert "vercel" in names
+    assert "openrouter" in names
     assert "openai" in names
     assert "anthropic" in names
 
@@ -84,3 +86,26 @@ def test_provider_defaults_digitalocean_is_configured():
     assert by_name["digitalocean"].env_var == "DO_API_KEY"
     assert by_name["digitalocean"].base_url == "https://inference.do-ai.run/v1"
     assert by_name["digitalocean"].model_pattern == "digitalocean/*"
+
+
+def test_provider_defaults_vercel_is_configured():
+    by_name = {p.name: p for p in PROVIDER_DEFAULTS}
+    assert "vercel" in by_name
+    assert by_name["vercel"].env_var == "AI_GATEWAY_API_KEY"
+    assert by_name["vercel"].base_url == "https://ai-gateway.vercel.sh/v1"
+    assert by_name["vercel"].model_pattern == "vercel/*"
+
+
+def test_provider_defaults_openrouter_is_configured():
+    by_name = {p.name: p for p in PROVIDER_DEFAULTS}
+    assert "openrouter" in by_name
+    assert by_name["openrouter"].env_var == "OPENROUTER_API_KEY"
+    assert by_name["openrouter"].base_url == "https://openrouter.ai/api/v1"
+    assert by_name["openrouter"].model_pattern == "openrouter/*"
+
+
+def test_openrouter_env_key_promotes_to_env_keyed():
+    cfg = synthesize_default_config(env={"OPENROUTER_API_KEY": "or-1"})
+    by_name = {p["name"]: p for p in cfg["model_providers"]}
+    assert by_name["openrouter"].get("access_key") == "$OPENROUTER_API_KEY"
+    assert by_name["openrouter"].get("passthrough_auth") is None