Improve mode switching UX: nicer prompts and auto-switch capability

[kilo-code-bot]

Description

When using the new VSCode extension, the mode switching experience is lacking compared to previous behavior. Specifically:

1. Nicer mode switch prompting — Previously there was a smoother, more intuitive way to prompt the user to switch modes (e.g., from Ask to Code mode). Currently, when a user asks the agent to switch modes and implement something, the agent redundantly asks "do you want to switch to code mode and implement this?" instead of just popping up a prompt that the user can agree to.

2. Auto-switch capability — The ability to automatically switch modes based on context (e.g., auto-switching from Ask/Plan mode to Code mode when implementation is requested) should be a supported permission.

Context

• Reported in Slack #new-vscode-feedback thread
• Related PR for planning suggestions: fix(plan): Show implementation suggestions only when LLM has all the information #6240
• Current behavior: user in Ask mode asks to implement something → agent asks confirmation to switch instead of auto-switching or smoothly transitioning

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Built for josh by Kilo for Slack

[Githubguy132010]

@kilocode-bot Shall I implement this?

[markijbema]

Additionally, switching doesnt seem to work atm, bumping this ( https://kilo-code.slack.com/archives/C0AFBRXUH2N/p1772987070925449 )