Update @github/copilot to 1.0.4-3 and regenerate types

Bumps the CLI package in both nodejs/ and test/harness/ to pick up
the shell exec API schema. Runs codegen to produce typed RPC wrappers
and updated session-event types across all four SDKs.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: 2 people

nodejs/package-lock.json

@@ -44,7 +44,7 @@
   "author": "GitHub",
   "license": "MIT",
   "dependencies": {
-    "@github/copilot": "^1.0.4",
+    "@github/copilot": "^1.0.4-3",
     "vscode-jsonrpc": "^8.2.1",
     "zod": "^4.3.6"
   },

nodejs/package.json

@@ -11,7 +11,7 @@
     "test": "vitest run"
   },
   "devDependencies": {
-    "@github/copilot": "^1.0.4",
+    "@github/copilot": "^1.0.4-3",
     "@modelcontextprotocol/sdk": "^1.26.0",
     "@types/node": "^25.3.3",
     "openai": "^6.17.0",