feat: nearai mcp for web search

.gitignore

@@ -34,8 +34,5 @@ trace_*.json
 .claude/settings.local.json
 .worktrees/
 
-# Python cache
-__pycache__/
-*.pyc
-*.pyo
-*.pyd
+# JetBrains IDE
+.idea

src/llm/nearai_auth.rs

@@ -0,0 +1,42 @@
+use secrecy::{ExposeSecret, SecretString};
+
+use crate::llm::LlmError;
+use crate::llm::session::SessionManager;
+
+/// Resolve the active NEAR AI bearer token.
+///
+/// Priority order:
+/// 1. Explicit API key from resolved config
+/// 2. Existing session token
+/// 3. Interactive session authentication
+/// 4. `NEARAI_API_KEY` from runtime environment
+pub async fn resolve_nearai_bearer_token(
+    api_key: Option<&SecretString>,
+    session: &SessionManager,
+) -> Result<String, LlmError> {
+    if let Some(api_key) = api_key {
+        return Ok(api_key.expose_secret().to_string());
+    }
+
+    if session.has_token().await {
+        let token = session.get_token().await?;
+        return Ok(token.expose_secret().to_string());
+    }
+
+    session.ensure_authenticated().await?;
+
+    if session.has_token().await {
+        let token = session.get_token().await?;
+        return Ok(token.expose_secret().to_string());
+    }
+
+    if let Ok(key) = std::env::var("NEARAI_API_KEY")
+        && !key.is_empty()
+    {
+        return Ok(key);
+    }
+
+    Err(LlmError::AuthFailed {
+        provider: "nearai".to_string(),
+    })
+}

src/tools/mcp/client.rs

@@ -704,10 +704,9 @@ fn normalize_mcp_tool_arguments(tool_name: &str, value: serde_json::Value) -> se
         .get("ui_lang")
         .and_then(serde_json::Value::as_str)
         .map(str::trim)
+        && (ui_lang.is_empty() || !ui_lang.contains('-'))
     {
-        if ui_lang.is_empty() || !ui_lang.contains('-') {
-            map.remove("ui_lang");
-        }
+        map.remove("ui_lang");
     }
 
     if let Some(freshness) = map