feat(aircoding): AirCoding V2 baseline — deterministic multi-agent architecture

Forked from OpenCode v1.17.4 with multi-agent system:
- 5 agents: aircoding, scheduler, worker, architect, reviewer
- Deterministic DAG scheduling engine (coordinator_tick)
- Tool whitelists as hard enforcement
- AirCoding validation plugin
- System prompt injection for routing
- V1 requirements: C4 docs, ADR, AGENTS.md, debug-log.md
- Design documents in docs/

packages/tui/src/context/route.tsx

@@ -0,0 +1,60 @@
+import { createStore, reconcile } from "solid-js/store"
+import { createSimpleContext } from "./helper"
+import type { PromptInfo } from "../prompt/history"
+import { useTuiStartup } from "./runtime"
+
+export type HomeRoute = {
+  type: "home"
+  prompt?: PromptInfo
+}
+
+export type SessionRoute = {
+  type: "session"
+  sessionID: string
+  prompt?: PromptInfo
+}
+
+export type PluginRoute = {
+  type: "plugin"
+  id: string
+  data?: Record<string, unknown>
+}
+
+export type Route = HomeRoute | SessionRoute | PluginRoute
+
+export const { use: useRoute, provider: RouteProvider } = createSimpleContext({
+  name: "Route",
+  init: (props: { initialRoute?: Route }) => {
+    const startup = useTuiStartup()
+    const [store, setStore] = createStore<Route>(
+      props.initialRoute ?? initialRoute(startup.initialRoute) ?? { type: "home" },
+    )
+
+    return {
+      get data() {
+        return store
+      },
+      navigate(route: Route) {
+        setStore(reconcile(route))
+      },
+    }
+  },
+})
+
+function initialRoute(value: unknown): Route | undefined {
+  if (!value || typeof value !== "object" || !("type" in value)) return
+  if (value.type === "home") return { type: "home" }
+  if (value.type === "session" && "sessionID" in value && typeof value.sessionID === "string") {
+    return { type: "session", sessionID: value.sessionID }
+  }
+  if (value.type === "plugin" && "id" in value && typeof value.id === "string") {
+    return { type: "plugin", id: value.id }
+  }
+}
+
+export type RouteContext = ReturnType<typeof useRoute>
+
+export function useRouteData<T extends Route["type"]>(type: T) {
+  const route = useRoute()
+  return route.data as Extract<Route, { type: typeof type }>
+}