fix(2.10.4): add missing clientDefs/AssistantRule.json

AssistantRule had no clientDefs file — the same gap that broke CaseMemory
in 2.10.2. Console showed:

  /client/custom/modules/smart-assistant/src/controllers/assistant-rule.js
  Failed to load resource: 404

Adding clientDefs/AssistantRule.json with controller: controllers/record
lets EspoCRM use the default record controller and stops the frontend
from probing for a non-existent module-specific controller file.

(2.10.3 had a force-push race against the auto-built zip, hence the
extra patch version.)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

manifest.json

@@ -3,7 +3,7 @@
     "module": "SmartAssistant",
     "description": "Unified AI Assistant for Legal CRM — floating chat with case memory, office alerts, and AI Gateway integration",
     "author": "klear",
-    "version": "2.10.3",
+    "version": "2.10.4",
     "acceptableVersions": [
         ">=8.0.0"
     ],