Add configurable timeout for context server tool calls (#33348)

Closes: #32668

- Add
[tool_call_timeout_millis](https://github.com/cline/cline/pull/1904)
field to ContextServerCommand, like in Cline
- Update ModelContextServerBinary to include timeout configuration
- Modify Client to store and use configurable request timeout
- Replace hardcoded REQUEST_TIMEOUT with self.request_timeout
- Rename REQUEST_TIMEOUT to DEFAULT_REQUEST_TIMEOUT for clarity
- Maintain backward compatibility with 60-second default

Release Notes:

- context_server: Add support for configurable timeout for MCP tool
calls

---------

Co-authored-by: Ben Brandt <benjamin.j.brandt@gmail.com>

crates/project/src/context_server_store/extension.rs

@@ -69,6 +69,7 @@ impl registry::ContextServerDescriptor for ContextServerDescriptor {
                 path: command.command,
                 args: command.args,
                 env: Some(command.env.into_iter().collect()),
+                timeout: None,
             })
         })
     }