feat(hooks): add anthropic-auto-compact hook

🤖 GENERATED WITH ASSISTANCE OF [OhMyOpenCode](https://github.com/code-yeongyu/oh-my-opencode)

src/hooks/anthropic-auto-compact/executor.ts

@@ -0,0 +1,74 @@
+import type { AutoCompactState } from "./types"
+
+type Client = {
+  session: {
+    messages: (opts: { path: { id: string }; query?: { directory?: string } }) => Promise<unknown>
+    summarize: (opts: {
+      path: { id: string }
+      body: { providerID: string; modelID: string }
+      query: { directory: string }
+    }) => Promise<unknown>
+  }
+  tui: {
+    submitPrompt: (opts: { query: { directory: string } }) => Promise<unknown>
+  }
+}
+
+export async function getLastAssistant(
+  sessionID: string,
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  client: any,
+  directory: string
+): Promise<Record<string, unknown> | null> {
+  try {
+    const resp = await (client as Client).session.messages({
+      path: { id: sessionID },
+      query: { directory },
+    })
+
+    const data = (resp as { data?: unknown[] }).data
+    if (!Array.isArray(data)) return null
+
+    const reversed = [...data].reverse()
+    const last = reversed.find((m) => {
+      const msg = m as Record<string, unknown>
+      const info = msg.info as Record<string, unknown> | undefined
+      return info?.role === "assistant"
+    })
+    if (!last) return null
+    return (last as { info?: Record<string, unknown> }).info ?? null
+  } catch {
+    return null
+  }
+}
+
+export async function executeCompact(
+  sessionID: string,
+  msg: Record<string, unknown>,
+  autoCompactState: AutoCompactState,
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  client: any,
+  directory: string
+): Promise<void> {
+  try {
+    const providerID = msg.providerID as string | undefined
+    const modelID = msg.modelID as string | undefined
+
+    if (providerID && modelID) {
+      await (client as Client).session.summarize({
+        path: { id: sessionID },
+        body: { providerID, modelID },
+        query: { directory },
+      })
+
+      setTimeout(async () => {
+        try {
+          await (client as Client).tui.submitPrompt({ query: { directory } })
+        } catch {}
+      }, 500)
+    }
+
+    autoCompactState.pendingCompact.delete(sessionID)
+    autoCompactState.errorDataBySession.delete(sessionID)
+  } catch {}
+}