fix(sdk): cap @github/copilot-sdk below 1.0.29 (#2416)

copilot-sdk 1.0.29 depends on vscode-jsonrpc 10, which exports ./node but
not ./node.js. The CLI's ESM import patch (the #449 workaround, run by the
postinstall and by `squad upgrade`) rewrites copilot-sdk's import to
vscode-jsonrpc/node.js, so Squad's Copilot adapter fails to load with
ERR_PACKAGE_PATH_NOT_EXPORTED. This broke test/cli-packaging-smoke.test.ts
on every PR into dev and breaks fresh global npm installs.

Hold the SDK at 1.0.28 (vscode-jsonrpc 8.2.1) until #2415 makes the patch
conditional.

Closes #2414

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

Author: tamirdresher

.changeset/cap-copilot-sdk-1-0-29.md

@@ -0,0 +1,6 @@
+---
+'@bradygaster/squad-sdk': patch
+'@bradygaster/squad-cli': patch
+---
+
+The interactive shell and other Copilot features no longer fail with `ERR_PACKAGE_PATH_NOT_EXPORTED` after a fresh install, because `@github/copilot-sdk` is now held below 1.0.29, whose `vscode-jsonrpc` 10 dependency breaks the CLI's ESM import patch (#2414). This is a temporary cap until #2415 makes that patch conditional.

package-lock.json

@@ -249,7 +249,7 @@
     "node": ">=22.5.0"
   },
   "dependencies": {
-    "@github/copilot-sdk": "^1.0.19",
+    "@github/copilot-sdk": ">=1.0.19 <1.0.29-0",
     "vscode-jsonrpc": "^9.0.3"
   },
   "optionalDependencies": {