Adds archyBridge.sendChat(text) built on the existing postToParent +
origin-validated listener pattern (same request-id correlation as
requestContext), with a 180s timeout matching the node's
ASSISTANT_HTTP_TIMEOUT. Adds useAI.ts's streamViaArchy, which branches all
three existing send sites on the same __AIUI_EMBEDDED__ signal useArchy.ts
already reads: embedded mode delegates the model call, the tool-calling
loop and the model key to the node; standalone mode is untouched and keeps
using streamClaude/streamOpenRouter with AIUI's own dev proxy (D-17).
CLAUDE_PATH/OPENROUTER_PATH are not removed — 13-02 changes what those
paths resolve to on a node, 13-09 retires them.
Verified: vitest run 332/335 passing (3 pre-existing failures confirmed via
a scratch worktree at the prior HEAD, unrelated to this change — seed
extraction count assertions and a web-search-integration body.webSearch
assertion); vue-tsc --noEmit clean.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
