feat: Enhance OAuth module and OpenRouter client functionality

- Updated OAuth module to include unused imports for better clarity.
- Refactored OpenRouterClient to improve chat functionality and added support for tools in chat requests.
- Modified internet tools (Download, Fetch, Search) to use a more flexible internet mode check.
- Introduced new Bash tools for managing background jobs (BashOutput, BashKill).
- Enhanced workflow tool to parse and execute workflow scripts with arguments.
- Updated status and workflow views to reflect new agent and findings counts.
- Added IPC protocol definitions for client requests and state payloads.

src/service/oauth/mod.rs

@@ -5,6 +5,9 @@ pub mod loopback;
 #[expect(dead_code)]
 pub mod manager;
 
+#[expect(unused_imports)]
 pub use manager::{OAuthManager, OAuthConfig};
+#[expect(unused_imports)]
 pub use pkce::CodeVerifier;
+#[expect(unused_imports)]
 pub use loopback::LoopbackServer;

src/service/openrouter.rs

@@ -1,5 +1,7 @@
 use anyhow::Result;
-use serde_json::Value;
+
+use crate::dto::chat::message::ChatMessage;
+use crate::dto::openrouter::request::ToolDef;
 
 pub struct OpenRouterClient {
     pub client: reqwest::blocking::Client,
@@ -18,13 +20,22 @@ impl OpenRouterClient {
         }
     }
 
-    pub fn chat(&self, messages: &[crate::dto::chat::message::ChatMessage]) -> Result<String> {
+    pub fn chat(&self, messages: &[ChatMessage]) -> Result<String> {
+        let response = self.chat_with_tools(messages, None)?;
+        Ok(response.content.unwrap_or_default())
+    }
+
+    pub fn chat_with_tools(
+        &self,
+        messages: &[ChatMessage],
+        tools: Option<Vec<ToolDef>>,
+    ) -> Result<ChatMessage> {
         let req = crate::dto::openrouter::request::ChatRequest {
             model: self.model.clone(),
             messages: messages.to_vec(),
             max_tokens: Some(4096),
             temperature: Some(0.7),
-            tools: None,
+            tools,
             stream: Some(false),
             top_p: None,
             stop: None,
@@ -43,11 +54,13 @@ impl OpenRouterClient {
             anyhow::bail!("OpenRouter API error {}: {}", status, body);
         }
 
-        let data: Value = resp.json()?;
-        let content = data["choices"][0]["message"]["content"]
-            .as_str()
-            .unwrap_or("")
-            .to_string();
-        Ok(content)
+        let data: crate::dto::openrouter::response::ChatResponse = resp.json()?;
+        let message = data
+            .choices
+            .into_iter()
+            .next()
+            .map(|c| c.message)
+            .ok_or_else(|| anyhow::anyhow!("OpenRouter response had no choices"))?;
+        Ok(message)
     }
 }