Revert "merge: integrate extension auto-update"

This reverts commit 322475860a, reversing
changes made to f52d9d7413.

dist/release-manifest.json

@@ -1,8 +1,8 @@
 {
   "manifest_version": 1,
-  "generated_on": "2026-09-03",
+  "generated_on": "2026-09-02",
   "baselines": {
-    "chrome_extension": "0.5.167",
+    "chrome_extension": "0.5.165",
     "skills": "0.5.125",
     "business_instruction_docx": "0.5.125",
     "agent_prompt": "ltjt-agent-prompt-v1.8-independent-headcount-categories"
@@ -10,10 +10,10 @@
   "artifacts": [
     {
       "kind": "chrome_extension",
-      "version": "0.5.167",
-      "path": "dist/ltjt-order-assistant-0.5.167.zip",
+      "version": "0.5.165",
+      "path": "dist/ltjt-order-assistant-0.5.165.zip",
       "source": "chrome-extension/ltjt-order-assistant",
-      "sha256": "6822ec660097a8889da8ea4fa22d4091467aa022067bff3bee2ac5406864b679"
+      "sha256": "14f3150ab26d99131e32321ddc805a85550438bc2810a1e20921f7922b25aaac"
     },
     {
       "kind": "skill",