feat: 品牌替换 + 启动优化 + AGENTS.md 模板定制

- 品牌替换：OpenCode/opencode → AirCoding/aircoding（16+ 文件）
- Logo ASCII art：修复 left/right 行数不匹配导致的启动崩溃
- 启动诊断：添加 OPENCODE_PRINT_TIMING 计时探针
- dev 模式默认 --pure 跳过外部插件加载
- AGENTS.md 模板：追加 AirCoding 多 Agent 专项段落
- architect prompt + plugin：强化 AGENTS.md 产出验证

packages/tui/src/component/dialog-session-delete-failed.tsx

@@ -0,0 +1,99 @@
+import { TextAttributes } from "@opentui/core"
+import { useTheme } from "../context/theme"
+import { useDialog } from "../ui/dialog"
+import { createStore } from "solid-js/store"
+import { For } from "solid-js"
+import { useBindings } from "../keymap"
+
+export function DialogSessionDeleteFailed(props: {
+  session: string
+  workspace: string
+  onDelete?: () => boolean | void | Promise<boolean | void>
+  onRestore?: () => boolean | void | Promise<boolean | void>
+  onDone?: () => void
+}) {
+  const dialog = useDialog()
+  const { theme } = useTheme()
+  const [store, setStore] = createStore({
+    active: "delete" as "delete" | "restore",
+  })
+
+  const options = [
+    {
+      id: "delete" as const,
+      title: "Delete workspace",
+      description: "Delete the workspace and all sessions attached to it.",
+      run: props.onDelete,
+    },
+    {
+      id: "restore" as const,
+      title: "Restore to new workspace",
+      description: "Try to restore this session into a new workspace.",
+      run: props.onRestore,
+    },
+  ]
+
+  async function confirm() {
+    const result = await options.find((item) => item.id === store.active)?.run?.()
+    if (result === false) return
+    props.onDone?.()
+    if (!props.onDone) dialog.clear()
+  }
+
+  useBindings(() => ({
+    bindings: [
+      { key: "return", desc: "Confirm recovery option", group: "Dialog", cmd: () => void confirm() },
+      { key: "left", desc: "Delete broken session", group: "Dialog", cmd: () => setStore("active", "delete") },
+      { key: "up", desc: "Delete broken session", group: "Dialog", cmd: () => setStore("active", "delete") },
+      { key: "right", desc: "Restore broken session", group: "Dialog", cmd: () => setStore("active", "restore") },
+      { key: "down", desc: "Restore broken session", group: "Dialog", cmd: () => setStore("active", "restore") },
+    ],
+  }))
+
+  return (
+    <box paddingLeft={2} paddingRight={2} gap={1}>
+      <box flexDirection="row" justifyContent="space-between">
+        <text attributes={TextAttributes.BOLD} fg={theme.text}>
+          Failed to Delete Session
+        </text>
+        <text fg={theme.textMuted} onMouseUp={() => dialog.clear()}>
+          esc
+        </text>
+      </box>
+      <text fg={theme.textMuted} wrapMode="word">
+        {`The session "${props.session}" could not be deleted because the workspace "${props.workspace}" is not available.`}
+      </text>
+      <text fg={theme.textMuted} wrapMode="word">
+        Choose how you want to recover this broken workspace session.
+      </text>
+      <box flexDirection="column" paddingBottom={1} gap={1}>
+        <For each={options}>
+          {(item) => (
+            <box
+              flexDirection="column"
+              paddingLeft={1}
+              paddingRight={1}
+              paddingTop={1}
+              paddingBottom={1}
+              backgroundColor={item.id === store.active ? theme.primary : undefined}
+              onMouseUp={() => {
+                setStore("active", item.id)
+                void confirm()
+              }}
+            >
+              <text
+                attributes={TextAttributes.BOLD}
+                fg={item.id === store.active ? theme.selectedListItemText : theme.text}
+              >
+                {item.title}
+              </text>
+              <text fg={item.id === store.active ? theme.selectedListItemText : theme.textMuted} wrapMode="word">
+                {item.description}
+              </text>
+            </box>
+          )}
+        </For>
+      </box>
+    </box>
+  )
+}