feat: add HTTP request tool for API interactions

Implements #210 - Add http_request tool that enables the agent to make
HTTP requests to external APIs.

Features:
- Supports GET, POST, PUT, DELETE, PATCH, HEAD, OPTIONS methods
- JSON request/response handling
- Configurable timeout (default: 30s)
- Configurable max response size (default: 1MB)
- Security: domain allowlist, blocks local/private IPs (SSRF protection)
- Headers support with auth token redaction

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

src/config/mod.rs

@@ -2,8 +2,8 @@ pub mod schema;
 
 pub use schema::{
     AutonomyConfig, BrowserConfig, ChannelsConfig, ComposioConfig, Config, DelegateAgentConfig,
-    DiscordConfig, DockerRuntimeConfig, GatewayConfig, HeartbeatConfig, IMessageConfig,
-    IdentityConfig, LarkConfig, MatrixConfig, MemoryConfig, ModelRouteConfig, ObservabilityConfig,
-    ReliabilityConfig, RuntimeConfig, SecretsConfig, SlackConfig, TelegramConfig, TunnelConfig,
-    WebhookConfig,
+    DiscordConfig, DockerRuntimeConfig, GatewayConfig, HeartbeatConfig, HttpRequestConfig,
+    IMessageConfig, IdentityConfig, LarkConfig, MatrixConfig, MemoryConfig, ModelRouteConfig,
+    ObservabilityConfig, ReliabilityConfig, RuntimeConfig, SecretsConfig, SlackConfig,
+    TelegramConfig, TunnelConfig, WebhookConfig,
 };