The set_provider function was recreating InputState instances when users switched between cloud providers (AWS/Aliyun/DeepSeek), clearing any values they had already entered.

Changes

• src/ui/accounts.rs:107-145: Replace InputState::new() recreation with set_placeholder() and set_default_value() method calls to preserve user input

Before:

self.ak_input.update(cx, |state, cx| {
    *state = InputState::new(window, cx).placeholder("Access Key ID");
});

After:

self.ak_input.update(cx, |state, _cx| {
    state.set_placeholder("Access Key ID");
});

Applied to ak_input, sk_input, and region_input fields across all provider branches.