docs(qwen-code-daemon-design): prioritize remote web POC

[chiga0]

Summary

• Absorb the slim part of docs(daemon): align roadmap with web-first client strategy #133 that is still needed after main already adopted the native-TUI direct-path decision.
• Raise remote web chat + web terminal to the first daemon technical POC, explicitly allowed to run in parallel with P0 must-haves/state CRUD.
• Reframe PR26 / client-render wording away from blanket TUI/channel/IDE daemon migration: native TUI stays direct, channel/IDE stay ACP for now, remote-control waits for the web contract.

Validation

• git diff --check
• scanned daemon docs for stale “all clients migrate to daemon” wording

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