fix(gemini): convert timeout params to Gemini CLI format (#580)

Claude Code/Codex uses startup_timeout_sec and tool_timeout_sec,
but Gemini CLI only supports a single timeout param in milliseconds.

- Collect startup and tool timeout separately with defaults
  - startup_timeout_sec default: 10s
  - tool_timeout_sec default: 60s
- Take max of both values as final timeout
- Support both sec and ms variants
- Remove original fields and insert Gemini-compatible timeout

src-tauri/src/gemini_mcp.rs

@@ -134,6 +134,33 @@ pub fn set_mcp_servers_map(
         obj.remove("homepage");
         obj.remove("docs");
 
+        // Timeout 转换：Claude/Codex 使用 startup_timeout_sec/tool_timeout_sec
+        // Gemini CLI 只支持 timeout（单位 ms）
+        // 默认值：startup=10s, tool=60s
+        const DEFAULT_STARTUP_MS: u64 = 10_000;
+        const DEFAULT_TOOL_MS: u64 = 60_000;
+
+        let extract_timeout =
+            |obj: &mut Map<String, Value>, key: &str, multiplier: u64| -> Option<u64> {
+                obj.remove(key).and_then(|val| {
+                    val.as_u64()
+                        .map(|n| n * multiplier)
+                        .or_else(|| val.as_f64().map(|f| (f * multiplier as f64) as u64))
+                })
+            };
+
+        // 分别收集 startup 和 tool timeout，未设置时使用默认值
+        let startup_ms = extract_timeout(&mut obj, "startup_timeout_sec", 1000)
+            .or_else(|| extract_timeout(&mut obj, "startup_timeout_ms", 1))
+            .unwrap_or(DEFAULT_STARTUP_MS);
+        let tool_ms = extract_timeout(&mut obj, "tool_timeout_sec", 1000)
+            .or_else(|| extract_timeout(&mut obj, "tool_timeout_ms", 1))
+            .unwrap_or(DEFAULT_TOOL_MS);
+
+        // 取最大值作为 Gemini timeout
+        let final_timeout = startup_ms.max(tool_ms);
+        obj.insert("timeout".to_string(), Value::Number(final_timeout.into()));
+
         out.insert(id.clone(), Value::Object(obj));
     }