feat: complete commercial control plane, billing, auth, and model catalog

- add PostgreSQL control-plane persistence with Redis-degraded hot reload
- implement prepaid balance, usage ledger, Stripe top-up and reconciliation
- add registration, email verification, password reset, invitations and RBAC
- support TOTP, Passkey MFA, device sessions, quotas and rate limits
- add tenant billing profiles, audit logs and operational readiness checks
- build authenticated admin console, Quickstart, Playground and usage analytics
- add public model catalog with pricing, filtering and cost estimation
- support OpenAI Responses providers and provider health failover
- validate real upstream usage reporting and balance settlement

1 files changed, 47 insertions, 0 deletions

diff --git a/config.responses.example.json b/config.responses.example.json
new file mode 100644
index 0000000..af1611b
--- /dev/null
+++ b/config.responses.example.json
@@ -0,0 +1,47 @@
+{
+  "server": {
+    "address_env": "AIGW_SERVER_ADDRESS",
+    "max_body_bytes": 16777216,
+    "read_header_timeout_seconds": 10,
+    "idle_timeout_seconds": 120,
+    "shutdown_timeout_seconds": 20
+  },
+  "auth": {
+    "keys_env": "AIGW_API_KEYS",
+    "allow_anonymous": false
+  },
+  "upstream_http": {
+    "max_idle_connections": 4096,
+    "max_idle_connections_per_host": 1024,
+    "idle_connection_timeout_seconds": 90,
+    "response_header_timeout_seconds": 60
+  },
+  "observability": {
+    "usage_buffer": 8192,
+    "expose_metrics": true
+  },
+  "providers": [
+    {
+      "id": "openai-responses",
+      "slug": "openai-responses",
+      "protocol": "openai",
+      "wire_api": "responses",
+      "base_url_env": "OPENAI_BASE_URL",
+      "api_key_env": "OPENAI_API_KEY"
+    }
+  ],
+  "models": [
+    {
+      "id": "openai/gpt-5.5",
+      "owned_by": "openai",
+      "routes": [
+        {
+          "provider": "openai-responses",
+          "upstream_model": "gpt-5.5",
+          "priority": 0,
+          "weight": 100
+        }
+      ]
+    }
+  ]
+}