v0.3: Wait for LOGIN state and perform WGC relogin

[Mewt0]

Goal

Complete the controlled reconnect path after the stock disconnect by waiting for the real gameplay LOGIN state and starting WGC login on the same server.

Preconditions

• Issue v0.2: Implement guarded manual reconnect with Ctrl+K #3 manual disconnect path validated.

Scope

• Observe GameplayStateID.LOGIN through IGameplayLogic.addOneshotObserver(); do not use guessed sleeps.
• Capture the selected/current server before disconnect.
• After LOGIN is reached, call the supported WGC login path through ILoginManager.
• Handle WGC unavailable / token invalid / login rejected without looping forever.
• Reset controller state on success or terminal failure.

Client APIs to verify

• skeletons.gameplay.GameplayStateID.LOGIN
• IGameplayLogic.addOneshotObserver()
• gui.login.Manager.tryPrepareWGCLogin()
• gui.login.Manager.tryWgcLogin(serverName=None)
• gui.login.Servers.selectedServer
• IConnectionManager.onConnected/onRejected/onDisconnected

Acceptance criteria

• No magic delay between disconnect and relogin.
• Manual Ctrl+K can reach LOGIN and start one WGC login attempt.
• Same server is used when available.
• Failed authentication/network attempt stops cleanly and leaves the user at Login instead of looping.
• Automatic RED-triggered disconnect remains disabled.

Tests

• Healthy manual reconnect.
• Manual reconnect during RED.
• WGC unavailable.
• Login rejection/token expiry.
• Network still offline after reaching Login.
• Successful relogin into an ongoing battle.