feat(cli): add 'bunx oh-my-opencode run' command for persistent agent sessions (#228)

- Add new 'run' command using @opencode-ai/sdk to manage agent sessions
- Implement recursive descendant session checking (waits for ALL nested child sessions)
- Add completion conditions: all todos done + all descendant sessions idle
- Add SSE event processing for session state tracking
- Fix todo-continuation-enforcer to clean up session tracking
- Comprehensive test coverage with memory-safe test patterns

Unlike 'opencode run', this command ensures the agent completes all tasks
by recursively waiting for nested background agent sessions before exiting.

🤖 Generated with assistance of OhMyOpenCode (https://github.com/code-yeongyu/oh-my-opencode)

src/cli/run/runner.ts

@@ -0,0 +1,110 @@
+import { createOpencode } from "@opencode-ai/sdk"
+import pc from "picocolors"
+import type { RunOptions, RunContext } from "./types"
+import { checkCompletionConditions } from "./completion"
+import { createEventState, processEvents } from "./events"
+
+const POLL_INTERVAL_MS = 500
+const DEFAULT_TIMEOUT_MS = 30 * 60 * 1000
+
+export async function run(options: RunOptions): Promise<number> {
+  const {
+    message,
+    agent,
+    directory = process.cwd(),
+    timeout = DEFAULT_TIMEOUT_MS,
+  } = options
+
+  console.log(pc.cyan("Starting opencode server..."))
+
+  const abortController = new AbortController()
+  const timeoutId = setTimeout(() => {
+    console.log(pc.yellow("\nTimeout reached. Aborting..."))
+    abortController.abort()
+  }, timeout)
+
+  try {
+    const { client, server } = await createOpencode({
+      signal: abortController.signal,
+    })
+
+    const cleanup = () => {
+      clearTimeout(timeoutId)
+      server.close()
+    }
+
+    process.on("SIGINT", () => {
+      console.log(pc.yellow("\nInterrupted. Shutting down..."))
+      cleanup()
+      process.exit(130)
+    })
+
+    try {
+      const sessionRes = await client.session.create({
+        body: { title: "oh-my-opencode run" },
+      })
+
+      const sessionID = sessionRes.data?.id
+      if (!sessionID) {
+        console.error(pc.red("Failed to create session"))
+        return 1
+      }
+
+      console.log(pc.dim(`Session: ${sessionID}`))
+
+      const ctx: RunContext = {
+        client,
+        sessionID,
+        directory,
+        abortController,
+      }
+
+      const events = await client.event.subscribe()
+      const eventState = createEventState()
+      const eventProcessor = processEvents(ctx, events.stream, eventState)
+
+      console.log(pc.dim("\nSending prompt..."))
+      await client.session.promptAsync({
+        path: { id: sessionID },
+        body: {
+          agent,
+          parts: [{ type: "text", text: message }],
+        },
+        query: { directory },
+      })
+
+      console.log(pc.dim("Waiting for completion...\n"))
+
+      while (!abortController.signal.aborted) {
+        await new Promise((resolve) => setTimeout(resolve, POLL_INTERVAL_MS))
+
+        if (!eventState.mainSessionIdle) {
+          continue
+        }
+
+        const shouldExit = await checkCompletionConditions(ctx)
+        if (shouldExit) {
+          console.log(pc.green("\n\nAll tasks completed."))
+          abortController.abort()
+          await eventProcessor.catch(() => {})
+          cleanup()
+          return 0
+        }
+      }
+
+      await eventProcessor.catch(() => {})
+      cleanup()
+      return 130
+    } catch (err) {
+      cleanup()
+      throw err
+    }
+  } catch (err) {
+    clearTimeout(timeoutId)
+    if (err instanceof Error && err.name === "AbortError") {
+      return 130
+    }
+    console.error(pc.red(`Error: ${err}`))
+    return 1
+  }
+}