fix: comprehensive BlueBubbles and channel cleanup (#11093)

* feat(bluebubbles): auto-strip markdown from outbound messages (#7402)

* fix(security): add timeout to webhook body reading (#6762)

Adds 30-second timeout to readBody() in voice-call, bluebubbles, and nostr
webhook handlers. Prevents Slow-Loris DoS (CWE-400, CVSS 7.5).
Merged with existing maxBytes protection in voice-call.

* fix(security): unify Error objects and lint fixes in webhook timeouts (#6762)

* fix: prevent plugins from auto-enabling without user consent (#3961)

Changes default plugin enabled state from true to false in enablePluginEntry().
Preserves existing enabled:true values. Fixes #3932.

* fix: apply hierarchical mediaMaxMb config to all channels (#8749)

Generalizes resolveAttachmentMaxBytes() to use account → channel → global
config resolution for all channels, not just BlueBubbles. Fixes #7847.

* fix(bluebubbles): sanitize attachment filenames against header injection (#10333)

Strip ", \r, \n, and \\ from filenames after path.basename() to prevent
multipart Content-Disposition header injection (CWE-93, CVSS 5.4).
Also adds sanitization to setGroupIconBlueBubbles which had zero filename
sanitization.

* fix(lint): exclude extensions/ from Oxlint preflight check (#9313)

Extensions use PluginRuntime|null patterns that trigger
no-redundant-type-constituents because PluginRuntime resolves to any.
Excluding extensions/ from Oxlint unblocks user upgrades.
Re-applies the approach from closed PR #10087.

* fix(bluebubbles): add tempGuid to createNewChatWithMessage payload (#7745)

Non-Private-API mode (AppleScript) requires tempGuid in send payloads.
The main sendMessageBlueBubbles already had it, but createNewChatWithMessage
was missing it, causing 400 errors for new chat creation without Private API.

* fix: send stop-typing signal when run ends with NO_REPLY (#8785)

Adds onCleanup callback to the typing controller that fires when the
controller is cleaned up while typing was active (e.g., after NO_REPLY).
Channels using createTypingCallbacks automatically get stop-typing on
cleanup. This prevents the typing indicator from lingering in group chats
when the agent decides not to reply.

* fix(telegram): deduplicate skill commands in multi-agent setup (#5717)

Two fixes:
1. Skip duplicate workspace dirs when listing skill commands across agents.
   Multiple agents sharing the same workspace would produce duplicate commands
   with _2, _3 suffixes.
2. Clear stale commands via deleteMyCommands before registering new ones.
   Commands from deleted skills now get cleaned up on restart.

* fix: add size limits to unbounded in-memory caches (#4948)

Adds max-size caps with oldest-entry eviction to prevent OOM in
long-running deployments:
- BlueBubbles serverInfoCache: 64 entries (already has TTL)
- Google Chat authCache: 32 entries
- Matrix directRoomCache: 1024 entries
- Discord presenceCache: 5000 entries per account

* fix: address review concerns (#11093)

- Chain deleteMyCommands → setMyCommands to prevent race condition (#5717)
- Rename enablePluginEntry to registerPluginEntry (now sets enabled: false)
- Add Slow-Loris timeout test for readJsonBody (#6023)

extensions/bluebubbles/src/send.ts

@@ -1,5 +1,6 @@
 import type { OpenClawConfig } from "openclaw/plugin-sdk";
 import crypto from "node:crypto";
+import { stripMarkdown } from "openclaw/plugin-sdk";
 import { resolveBlueBubblesAccount } from "./accounts.js";
 import {
   extractHandleFromChatGuid,
@@ -332,6 +333,7 @@ async function createNewChatWithMessage(params: {
   const payload = {
     addresses: [params.address],
     message: params.message,
+    tempGuid: `temp-${crypto.randomUUID()}`,
   };
   const res = await blueBubblesFetchWithTimeout(
     url,
@@ -377,6 +379,11 @@ export async function sendMessageBlueBubbles(
   if (!trimmedText.trim()) {
     throw new Error("BlueBubbles send requires text");
   }
+  // Strip markdown early and validate - ensures messages like "***" or "---" don't become empty
+  const strippedText = stripMarkdown(trimmedText);
+  if (!strippedText.trim()) {
+    throw new Error("BlueBubbles send requires text (message was empty after markdown removal)");
+  }
 
   const account = resolveBlueBubblesAccount({
     cfg: opts.cfg ?? {},
@@ -406,7 +413,7 @@ export async function sendMessageBlueBubbles(
         baseUrl,
         password,
         address: target.address,
-        message: trimmedText,
+        message: strippedText,
         timeoutMs: opts.timeoutMs,
       });
     }
@@ -419,7 +426,7 @@ export async function sendMessageBlueBubbles(
   const payload: Record<string, unknown> = {
     chatGuid,
     tempGuid: crypto.randomUUID(),
-    message: trimmedText,
+    message: strippedText,
   };
   if (needsPrivateApi) {
     payload.method = "private-api";