fix(inference): move network config classes out of model_registry into dedicated module

Create network_config.py with TLSConfig, ProxyConfig, TimeoutConfig,
LimitsConfig, and NetworkConfig as a standalone module. These are
semantically unrelated to model registry logic.

Update all source and test imports to pull network config classes from
the new module while keeping RemoteInferenceProviderConfig,
ProviderModelEntry, and ModelRegistryHelper in model_registry.py.

Keep backward-compatible re-exports in model_registry.py for existing
import paths. Regenerate provider documentation with updated field
descriptions.

Signed-off-by: Matthew Farrellee <matt@cs.wisc.edu>

Author: mattf

docs/docs/providers/inference/remote_anthropic.mdx

@@ -35,9 +35,9 @@ Anthropic inference provider for accessing Claude models and Anthropic's AI serv
 | `network.timeout.read` | `float \| None` | No |  | Read timeout in seconds. |
 | `network.headers` | `dict[str, str] \| None` | No |  | Additional HTTP headers to include in all requests. |
 | `network.limits` | `LimitsConfig \| None` | No |  | HTTP connection pool limits (max connections, keepalive connections, keepalive expiry). None uses httpx's own defaults. |
-| `network.limits.max_connections` | `int \| None` | No | 100 | Maximum number of concurrent connections in the pool. None means no limit. |
-| `network.limits.max_keepalive_connections` | `int \| None` | No | 20 | Maximum number of idle keep-alive connections to retain. None means no limit. |
-| `network.limits.keepalive_expiry` | `float \| None` | No | 5.0 | Time in seconds to keep idle keep-alive connections open before closing them. None means no expiry. |
+| `network.limits.max_connections` | `int \| None` | No | 100 | Maximum number of concurrent connections in the pool. None means no limit. Values must be >= 1 if set. |
+| `network.limits.max_keepalive_connections` | `int \| None` | No | 20 | Maximum number of idle keep-alive connections to retain. None means no limit. Values must be >= 0 if set. |
+| `network.limits.keepalive_expiry` | `float \| None` | No | 5.0 | Time in seconds to keep idle keep-alive connections open before closing them. None means no expiry. Values must be >= 0 if set. |
 
 ## Sample Configuration
 

docs/docs/providers/inference/remote_azure.mdx

@@ -42,9 +42,9 @@ https://learn.microsoft.com/en-us/azure/ai-foundry/openai/overview
 | `network.timeout.read` | `float \| None` | No |  | Read timeout in seconds. |
 | `network.headers` | `dict[str, str] \| None` | No |  | Additional HTTP headers to include in all requests. |
 | `network.limits` | `LimitsConfig \| None` | No |  | HTTP connection pool limits (max connections, keepalive connections, keepalive expiry). None uses httpx's own defaults. |
-| `network.limits.max_connections` | `int \| None` | No | 100 | Maximum number of concurrent connections in the pool. None means no limit. |
-| `network.limits.max_keepalive_connections` | `int \| None` | No | 20 | Maximum number of idle keep-alive connections to retain. None means no limit. |
-| `network.limits.keepalive_expiry` | `float \| None` | No | 5.0 | Time in seconds to keep idle keep-alive connections open before closing them. None means no expiry. |
+| `network.limits.max_connections` | `int \| None` | No | 100 | Maximum number of concurrent connections in the pool. None means no limit. Values must be >= 1 if set. |
+| `network.limits.max_keepalive_connections` | `int \| None` | No | 20 | Maximum number of idle keep-alive connections to retain. None means no limit. Values must be >= 0 if set. |
+| `network.limits.keepalive_expiry` | `float \| None` | No | 5.0 | Time in seconds to keep idle keep-alive connections open before closing them. None means no expiry. Values must be >= 0 if set. |
 | `base_url` | `HttpUrl \| None` | No |  | Azure API base for Azure (e.g., https://your-resource-name.openai.azure.com/openai/v1) |
 | `api_version` | `str \| None` | No |  | Azure API version for Azure (e.g., 2024-12-01-preview) |
 | `api_type` | `str \| None` | No | azure | Azure API type for Azure (e.g., azure) |

docs/docs/providers/inference/remote_bedrock.mdx

@@ -35,9 +35,9 @@ AWS Bedrock inference provider for the OpenAI-compatible runtime, with AWS crede
 | `network.timeout.read` | `float \| None` | No |  | Read timeout in seconds. |
 | `network.headers` | `dict[str, str] \| None` | No |  | Additional HTTP headers to include in all requests. |
 | `network.limits` | `LimitsConfig \| None` | No |  | HTTP connection pool limits (max connections, keepalive connections, keepalive expiry). None uses httpx's own defaults. |
-| `network.limits.max_connections` | `int \| None` | No | 100 | Maximum number of concurrent connections in the pool. None means no limit. |
-| `network.limits.max_keepalive_connections` | `int \| None` | No | 20 | Maximum number of idle keep-alive connections to retain. None means no limit. |
-| `network.limits.keepalive_expiry` | `float \| None` | No | 5.0 | Time in seconds to keep idle keep-alive connections open before closing them. None means no expiry. |
+| `network.limits.max_connections` | `int \| None` | No | 100 | Maximum number of concurrent connections in the pool. None means no limit. Values must be >= 1 if set. |
+| `network.limits.max_keepalive_connections` | `int \| None` | No | 20 | Maximum number of idle keep-alive connections to retain. None means no limit. Values must be >= 0 if set. |
+| `network.limits.keepalive_expiry` | `float \| None` | No | 5.0 | Time in seconds to keep idle keep-alive connections open before closing them. None means no expiry. Values must be >= 0 if set. |
 | `aws_access_key_id` | `SecretStr \| None` | No |  | The AWS access key to use. Default use environment variable: AWS_ACCESS_KEY_ID |
 | `aws_secret_access_key` | `SecretStr \| None` | No |  | The AWS secret access key to use. Default use environment variable: AWS_SECRET_ACCESS_KEY |
 | `aws_session_token` | `SecretStr \| None` | No |  | The AWS session token to use. Default use environment variable: AWS_SESSION_TOKEN |

docs/docs/providers/inference/remote_cerebras.mdx

@@ -35,9 +35,9 @@ Cerebras inference provider for running models on Cerebras Cloud platform.
 | `network.timeout.read` | `float \| None` | No |  | Read timeout in seconds. |
 | `network.headers` | `dict[str, str] \| None` | No |  | Additional HTTP headers to include in all requests. |
 | `network.limits` | `LimitsConfig \| None` | No |  | HTTP connection pool limits (max connections, keepalive connections, keepalive expiry). None uses httpx's own defaults. |
-| `network.limits.max_connections` | `int \| None` | No | 100 | Maximum number of concurrent connections in the pool. None means no limit. |
-| `network.limits.max_keepalive_connections` | `int \| None` | No | 20 | Maximum number of idle keep-alive connections to retain. None means no limit. |
-| `network.limits.keepalive_expiry` | `float \| None` | No | 5.0 | Time in seconds to keep idle keep-alive connections open before closing them. None means no expiry. |
+| `network.limits.max_connections` | `int \| None` | No | 100 | Maximum number of concurrent connections in the pool. None means no limit. Values must be >= 1 if set. |
+| `network.limits.max_keepalive_connections` | `int \| None` | No | 20 | Maximum number of idle keep-alive connections to retain. None means no limit. Values must be >= 0 if set. |
+| `network.limits.keepalive_expiry` | `float \| None` | No | 5.0 | Time in seconds to keep idle keep-alive connections open before closing them. None means no expiry. Values must be >= 0 if set. |
 | `base_url` | `HttpUrl \| None` | No | https://api.cerebras.ai/v1 | Base URL for the Cerebras API |
 
 ## Sample Configuration

docs/docs/providers/inference/remote_databricks.mdx

@@ -35,9 +35,9 @@ Databricks inference provider for running models on Databricks' unified analytic
 | `network.timeout.read` | `float \| None` | No |  | Read timeout in seconds. |
 | `network.headers` | `dict[str, str] \| None` | No |  | Additional HTTP headers to include in all requests. |
 | `network.limits` | `LimitsConfig \| None` | No |  | HTTP connection pool limits (max connections, keepalive connections, keepalive expiry). None uses httpx's own defaults. |
-| `network.limits.max_connections` | `int \| None` | No | 100 | Maximum number of concurrent connections in the pool. None means no limit. |
-| `network.limits.max_keepalive_connections` | `int \| None` | No | 20 | Maximum number of idle keep-alive connections to retain. None means no limit. |
-| `network.limits.keepalive_expiry` | `float \| None` | No | 5.0 | Time in seconds to keep idle keep-alive connections open before closing them. None means no expiry. |
+| `network.limits.max_connections` | `int \| None` | No | 100 | Maximum number of concurrent connections in the pool. None means no limit. Values must be >= 1 if set. |
+| `network.limits.max_keepalive_connections` | `int \| None` | No | 20 | Maximum number of idle keep-alive connections to retain. None means no limit. Values must be >= 0 if set. |
+| `network.limits.keepalive_expiry` | `float \| None` | No | 5.0 | Time in seconds to keep idle keep-alive connections open before closing them. None means no expiry. Values must be >= 0 if set. |
 | `base_url` | `HttpUrl \| None` | No |  | The URL for the Databricks model serving endpoint (should include /serving-endpoints path) |
 
 ## Sample Configuration

docs/docs/providers/inference/remote_deepseek.mdx

@@ -34,6 +34,10 @@ DeepSeek inference provider for accessing DeepSeek models via the DeepSeek API.
 | `network.timeout.connect` | `float \| None` | No |  | Connection timeout in seconds. |
 | `network.timeout.read` | `float \| None` | No |  | Read timeout in seconds. |
 | `network.headers` | `dict[str, str] \| None` | No |  | Additional HTTP headers to include in all requests. |
+| `network.limits` | `LimitsConfig \| None` | No |  | HTTP connection pool limits (max connections, keepalive connections, keepalive expiry). None uses httpx's own defaults. |
+| `network.limits.max_connections` | `int \| None` | No | 100 | Maximum number of concurrent connections in the pool. None means no limit. Values must be >= 1 if set. |
+| `network.limits.max_keepalive_connections` | `int \| None` | No | 20 | Maximum number of idle keep-alive connections to retain. None means no limit. Values must be >= 0 if set. |
+| `network.limits.keepalive_expiry` | `float \| None` | No | 5.0 | Time in seconds to keep idle keep-alive connections open before closing them. None means no expiry. Values must be >= 0 if set. |
 | `base_url` | `HttpUrl \| None` | No | https://api.deepseek.com/v1 | Base URL for the DeepSeek API |
 
 ## Sample Configuration

docs/docs/providers/inference/remote_fireworks.mdx

@@ -35,9 +35,9 @@ Fireworks AI inference provider for Llama models and other AI models on the Fire
 | `network.timeout.read` | `float \| None` | No |  | Read timeout in seconds. |
 | `network.headers` | `dict[str, str] \| None` | No |  | Additional HTTP headers to include in all requests. |
 | `network.limits` | `LimitsConfig \| None` | No |  | HTTP connection pool limits (max connections, keepalive connections, keepalive expiry). None uses httpx's own defaults. |
-| `network.limits.max_connections` | `int \| None` | No | 100 | Maximum number of concurrent connections in the pool. None means no limit. |
-| `network.limits.max_keepalive_connections` | `int \| None` | No | 20 | Maximum number of idle keep-alive connections to retain. None means no limit. |
-| `network.limits.keepalive_expiry` | `float \| None` | No | 5.0 | Time in seconds to keep idle keep-alive connections open before closing them. None means no expiry. |
+| `network.limits.max_connections` | `int \| None` | No | 100 | Maximum number of concurrent connections in the pool. None means no limit. Values must be >= 1 if set. |
+| `network.limits.max_keepalive_connections` | `int \| None` | No | 20 | Maximum number of idle keep-alive connections to retain. None means no limit. Values must be >= 0 if set. |
+| `network.limits.keepalive_expiry` | `float \| None` | No | 5.0 | Time in seconds to keep idle keep-alive connections open before closing them. None means no expiry. Values must be >= 0 if set. |
 | `base_url` | `HttpUrl \| None` | No | https://api.fireworks.ai/inference/v1 | The URL for the Fireworks server |
 
 ## Sample Configuration

docs/docs/providers/inference/remote_gemini.mdx

@@ -35,9 +35,9 @@ Google Gemini inference provider for accessing Gemini models and Google's AI ser
 | `network.timeout.read` | `float \| None` | No |  | Read timeout in seconds. |
 | `network.headers` | `dict[str, str] \| None` | No |  | Additional HTTP headers to include in all requests. |
 | `network.limits` | `LimitsConfig \| None` | No |  | HTTP connection pool limits (max connections, keepalive connections, keepalive expiry). None uses httpx's own defaults. |
-| `network.limits.max_connections` | `int \| None` | No | 100 | Maximum number of concurrent connections in the pool. None means no limit. |
-| `network.limits.max_keepalive_connections` | `int \| None` | No | 20 | Maximum number of idle keep-alive connections to retain. None means no limit. |
-| `network.limits.keepalive_expiry` | `float \| None` | No | 5.0 | Time in seconds to keep idle keep-alive connections open before closing them. None means no expiry. |
+| `network.limits.max_connections` | `int \| None` | No | 100 | Maximum number of concurrent connections in the pool. None means no limit. Values must be >= 1 if set. |
+| `network.limits.max_keepalive_connections` | `int \| None` | No | 20 | Maximum number of idle keep-alive connections to retain. None means no limit. Values must be >= 0 if set. |
+| `network.limits.keepalive_expiry` | `float \| None` | No | 5.0 | Time in seconds to keep idle keep-alive connections open before closing them. None means no expiry. Values must be >= 0 if set. |
 | `access_token` | `SecretStr \| None` | No |  | OAuth2 access token for Gemini. When set, used instead of api_key for Bearer authentication. |
 | `project` | `str \| None` | No |  | Google Cloud project ID for quota attribution when using OAuth/ADC credentials. |
 

docs/docs/providers/inference/remote_groq.mdx

@@ -35,9 +35,9 @@ Groq inference provider for ultra-fast inference using Groq's LPU technology.
 | `network.timeout.read` | `float \| None` | No |  | Read timeout in seconds. |
 | `network.headers` | `dict[str, str] \| None` | No |  | Additional HTTP headers to include in all requests. |
 | `network.limits` | `LimitsConfig \| None` | No |  | HTTP connection pool limits (max connections, keepalive connections, keepalive expiry). None uses httpx's own defaults. |
-| `network.limits.max_connections` | `int \| None` | No | 100 | Maximum number of concurrent connections in the pool. None means no limit. |
-| `network.limits.max_keepalive_connections` | `int \| None` | No | 20 | Maximum number of idle keep-alive connections to retain. None means no limit. |
-| `network.limits.keepalive_expiry` | `float \| None` | No | 5.0 | Time in seconds to keep idle keep-alive connections open before closing them. None means no expiry. |
+| `network.limits.max_connections` | `int \| None` | No | 100 | Maximum number of concurrent connections in the pool. None means no limit. Values must be >= 1 if set. |
+| `network.limits.max_keepalive_connections` | `int \| None` | No | 20 | Maximum number of idle keep-alive connections to retain. None means no limit. Values must be >= 0 if set. |
+| `network.limits.keepalive_expiry` | `float \| None` | No | 5.0 | Time in seconds to keep idle keep-alive connections open before closing them. None means no expiry. Values must be >= 0 if set. |
 | `base_url` | `HttpUrl \| None` | No | https://api.groq.com/openai/v1 | The URL for the Groq AI server |
 
 ## Sample Configuration

docs/docs/providers/inference/remote_llama-cpp-server.mdx

@@ -35,9 +35,9 @@ llama.cpp inference provider for connecting to llama.cpp servers with OpenAI-com
 | `network.timeout.read` | `float \| None` | No |  | Read timeout in seconds. |
 | `network.headers` | `dict[str, str] \| None` | No |  | Additional HTTP headers to include in all requests. |
 | `network.limits` | `LimitsConfig \| None` | No |  | HTTP connection pool limits (max connections, keepalive connections, keepalive expiry). None uses httpx's own defaults. |
-| `network.limits.max_connections` | `int \| None` | No | 100 | Maximum number of concurrent connections in the pool. None means no limit. |
-| `network.limits.max_keepalive_connections` | `int \| None` | No | 20 | Maximum number of idle keep-alive connections to retain. None means no limit. |
-| `network.limits.keepalive_expiry` | `float \| None` | No | 5.0 | Time in seconds to keep idle keep-alive connections open before closing them. None means no expiry. |
+| `network.limits.max_connections` | `int \| None` | No | 100 | Maximum number of concurrent connections in the pool. None means no limit. Values must be >= 1 if set. |
+| `network.limits.max_keepalive_connections` | `int \| None` | No | 20 | Maximum number of idle keep-alive connections to retain. None means no limit. Values must be >= 0 if set. |
+| `network.limits.keepalive_expiry` | `float \| None` | No | 5.0 | Time in seconds to keep idle keep-alive connections open before closing them. None means no expiry. Values must be >= 0 if set. |
 | `base_url` | `HttpUrl \| None` | No | http://localhost:8080/v1 | The URL for the Llama cpp server |
 
 ## Sample Configuration