[FEATURE] PLEASE add keybindings for: cycle model effort level (from chat input)

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

modelPicker:increaseEffort and modelPicker:decreaseEffort only fire when the ModelPicker UI is already open. There is no global action to change effort level from the chat input, so users must either open the picker first (cmd+p) or type /effort manually every time.

Proposed Solution

Add global chat-scoped actions that adjust effort level regardless of picker state:

• chat:cycleEffort — cycles through effort levels in order
• chat:increaseEffort — increments effort level
• chat:decreaseEffort — decrements effort level

These would mirror the existing modelPicker:* actions but fire from the main chat input context.

{ "key": "ctrl+e", "command": "chat:cycleEffort" }

Alternative Solutions

• Use /effort slash command — works but requires typing; not bindable to a hotkey.
• Open picker first (cmd+p) then adjust — two keystrokes minimum, breaks flow.
• Mouse click on effort indicator — not keyboard-accessible.

Priority

High - Significant impact on productivity

Feature Category

Interactive mode (TUI)

Use Case Example

_No response_

Additional Context

_No response_