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/feature-plugins/home/tips.tsx

@@ -0,0 +1,59 @@
+import type { TuiPlugin, TuiPluginApi } from "@opencode-ai/plugin/tui"
+import type { BuiltinTuiPlugin } from "../builtins"
+import { createMemo, Show } from "solid-js"
+import { Tips } from "./tips-view"
+import { useBindings } from "../../keymap"
+
+const id = "internal:home-tips"
+
+function View(props: { api: TuiPluginApi; hidden: boolean; show: boolean; connected: boolean }) {
+  useBindings(() => ({
+    commands: [
+      {
+        name: "tips.toggle",
+        title: props.hidden ? "Show tips" : "Hide tips",
+        category: "System",
+        namespace: "palette",
+        run() {
+          props.api.kv.set("tips_hidden", !props.api.kv.get("tips_hidden", false))
+          props.api.ui.dialog.clear()
+        },
+      },
+    ],
+    bindings: props.api.tuiConfig.keybinds.get("tips.toggle"),
+  }))
+
+  return (
+    <box width="100%" maxWidth={75} alignItems="center" paddingTop={3} flexShrink={1}>
+      <Show when={props.show}>
+        <Tips api={props.api} connected={props.connected} />
+      </Show>
+    </box>
+  )
+}
+
+const tui: TuiPlugin = async (api) => {
+  api.slots.register({
+    order: 100,
+    slots: {
+      home_bottom() {
+        const hidden = createMemo(() => api.kv.get("tips_hidden", false))
+        const first = createMemo(() => api.state.session.count() === 0)
+        const connected = createMemo(() =>
+          api.state.provider.some(
+            (item) => item.id !== "opencode" || Object.values(item.models).some((model) => model.cost?.input !== 0),
+          ),
+        )
+        const show = createMemo(() => (!first() || !connected()) && !hidden())
+        return <View api={api} hidden={hidden()} show={show()} connected={connected()} />
+      },
+    },
+  })
+}
+
+const plugin: BuiltinTuiPlugin = {
+  id,
+  tui,
+}
+
+export default plugin