fix: 修正 channel permission relay 路由与能力判定

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

src/hooks/toolPermission/handlers/__tests__/interactiveHandler.test.ts

@@ -0,0 +1,38 @@
+import { describe, expect, test } from 'bun:test'
+import { getLatestChannelContextHint } from '../interactiveHandler.js'
+
+describe('getLatestChannelContextHint', () => {
+  test('extracts source server and chat id from latest channel user message', () => {
+    expect(
+      getLatestChannelContextHint([
+        {
+          type: 'user',
+          origin: { kind: 'channel', server: 'plugin:weixin:weixin' },
+          message: {
+            content: [
+              {
+                type: 'text',
+                text: '<channel source="plugin:weixin:weixin" chat_id="user-1" sender_id="user-1">\nhello\n</channel>',
+              },
+            ],
+          },
+        },
+      ]),
+    ).toEqual({
+      sourceServer: 'plugin:weixin:weixin',
+      chatId: 'user-1',
+    })
+  })
+
+  test('returns null when there is no channel-origin user message', () => {
+    expect(
+      getLatestChannelContextHint([
+        {
+          type: 'user',
+          origin: { kind: 'manual' },
+          message: { content: [{ type: 'text', text: 'hello' }] },
+        },
+      ]),
+    ).toBeNull()
+  })
+})

src/hooks/toolPermission/handlers/interactiveHandler.ts

@@ -1,6 +1,7 @@
 import { feature } from 'bun:bundle'
 import type { ContentBlockParam } from '@anthropic-ai/sdk/resources/messages.mjs'
 import { randomUUID } from 'crypto'
+import { CHANNEL_TAG } from 'src/constants/xml.js'
 import { logForDebugging } from 'src/utils/debug.js'
 import { getAllowedChannels } from '../../../bootstrap/state.js'
 import type { BridgePermissionCallbacks } from '../../../bridge/bridgePermissionCallbacks.js'
@@ -46,6 +47,76 @@ type InteractivePermissionParams = {
   channelCallbacks?: ChannelPermissionCallbacks
 }
 
+type ChannelContextHint = {
+  sourceServer?: string
+  chatId?: string
+}
+
+function getTextBlocksText(content: unknown): string {
+  if (typeof content === 'string') {
+    return content
+  }
+  if (!Array.isArray(content)) {
+    return ''
+  }
+  return content
+    .filter(
+      (block): block is { type: 'text'; text: string } =>
+        typeof block === 'object' &&
+        block !== null &&
+        (block as { type?: unknown }).type === 'text' &&
+        typeof (block as { text?: unknown }).text === 'string',
+    )
+    .map(block => block.text)
+    .join('\n')
+}
+
+function parseChannelContextHintFromText(text: string): ChannelContextHint | null {
+  const tagMatch = text.match(new RegExp(`<${CHANNEL_TAG}\\b([^>]*)>`))
+  if (!tagMatch?.[1]) {
+    return null
+  }
+
+  const attrs = tagMatch[1]
+  const sourceServer = attrs.match(/\bsource="([^"]+)"/)?.[1]
+  const chatId = attrs.match(/\bchat_id="([^"]+)"/)?.[1]
+
+  if (!sourceServer && !chatId) {
+    return null
+  }
+
+  return { sourceServer, chatId }
+}
+
+export function getLatestChannelContextHint(messages: readonly unknown[]): ChannelContextHint | null {
+  for (let index = messages.length - 1; index >= 0; index--) {
+    const message = messages[index] as {
+      type?: unknown
+      origin?: { kind?: unknown; server?: unknown }
+      message?: { content?: unknown }
+    }
+
+    if (message?.type !== 'user' || message?.origin?.kind !== 'channel') {
+      continue
+    }
+
+    const text = getTextBlocksText(message.message?.content)
+    const parsed = parseChannelContextHintFromText(text)
+    if (parsed) {
+      return {
+        sourceServer:
+          parsed.sourceServer ||
+          (typeof message.origin.server === 'string'
+            ? message.origin.server
+            : undefined),
+        chatId: parsed.chatId,
+      }
+    }
+  }
+
+  return null
+}
+
 /**
  * Handles the interactive (main-agent) permission flow.
  *
@@ -420,6 +491,17 @@ function handleInteractivePermission(
         description,
         input_preview: truncateForPreview(displayInput),
       }
+      const channelContext = getLatestChannelContextHint(
+        ctx.toolUseContext.messages,
+      )
+      if (channelContext?.sourceServer || channelContext?.chatId) {
+        params.channel_context = {
+          ...(channelContext.sourceServer && {
+            source_server: channelContext.sourceServer,
+          }),
+          ...(channelContext.chatId && { chat_id: channelContext.chatId }),
+        }
+      }
 
       for (const client of channelClients) {
         if (client.type !== 'connected') continue // refine for TS