fix: allow agent workspace directories in media local roots (#17136)

Merged via /review-pr -> /prepare-pr -> /merge-pr.

Prepared head SHA: 7545ef1e19
Co-authored-by: MisterGuy420 <255743668+MisterGuy420@users.noreply.github.com>
Co-authored-by: gumadeiras <5599352+gumadeiras@users.noreply.github.com>
Reviewed-by: @gumadeiras

src/gateway/server-methods/send.ts

@@ -199,6 +199,9 @@ export const sendHandlers: GatewayRequestHandlers = {
           to: resolved.to,
           accountId,
           payloads: [{ text: message, mediaUrl, mediaUrls }],
+          agentId: providedSessionKey
+            ? resolveSessionAgentId({ sessionKey: providedSessionKey, config: cfg })
+            : derivedAgentId,
           gifPlayback: request.gifPlayback,
           deps: outboundDeps,
           mirror: providedSessionKey

src/gateway/server-restart-sentinel.ts

@@ -1,4 +1,5 @@
 import type { CliDeps } from "../cli/deps.js";
+import { resolveSessionAgentId } from "../agents/agent-scope.js";
 import { resolveAnnounceTargetFromKey } from "../agents/tools/sessions-send-helpers.js";
 import { normalizeChannelId } from "../channels/plugins/index.js";
 import { resolveMainSessionKeyFromConfig } from "../config/sessions.js";
@@ -92,6 +93,7 @@ export async function scheduleRestartSentinelWake(_params: { deps: CliDeps }) {
       accountId: origin?.accountId,
       threadId,
       payloads: [{ text: message }],
+      agentId: resolveSessionAgentId({ sessionKey, config: cfg }),
       bestEffort: true,
     });
   } catch (err) {