fix: replace remaining console.error/warn/log with structured logging in TUI

[MrRealORG]

Summary

Replace 10 remaining console.* calls in TUI code with structured logging via Log.create(). console.* calls break TUI terminal rendering by writing raw text to stdout/stderr.

Changes

File	Calls	Change
app.tsx	2	console.error → log.warn (clipboard copy failure, plugin load failure)
context/kv.tsx	3	console.error → log.warn (KV state read/write failures)
component/prompt/index.tsx	1	console.log → log.warn (session create failure)
plugin/runtime.ts	3	Removed redundant console.error/console.warn (structured log.error/log.warn already present on the same lines)
plugin/slots.tsx	1	console.error → log.error (plugin error handler)

Files Modified

• packages/opencode/src/cli/cmd/tui/app.tsx
• packages/opencode/src/cli/cmd/tui/context/kv.tsx
• packages/opencode/src/cli/cmd/tui/component/prompt/index.tsx
• packages/opencode/src/cli/cmd/tui/plugin/runtime.ts
• packages/opencode/src/cli/cmd/tui/plugin/slots.tsx

Notes

• clipboard.ts debug console.log calls were intentionally left — they fire during one-time method detection before the TUI renders
• ten_vad_loader.js is a third-party WASM loader — not modified
• This completes the TUI console.* cleanup started in earlier PRs (fix: replace console.* and silent .catch(() => {}) with structured logging in TUI #791, fix: replace silent .catch(() => {}) with structured logging in prompt history #792, fix: add structured logging to frecency, stash, KV, clipboard, and remaining TUI console calls #786, fix: use warning color for retry status (#385) and replace console.*/silent catches with structured logging #802)