fix: add cold-restart native-driver regression check to electron smoke (#7592)

The stale-ABI better-sqlite3 root cause itself is already fixed on this tip
(#6605, #7353); the issue stayed open only because
scripts/dev/smoke-electron-packaged.mjs never launched the packaged app twice
against a persisted DATA_DIR nor asserted which SQLite driver loaded. Add an
ELECTRON_SMOKE_COLD_RESTART mode that relaunches against the same DATA_DIR and
asserts the startup log shows a native driver (bun:sqlite/better-sqlite3/
node:sqlite), not the sql.js WASM fallback, and wire it blocking into the
Linux leg of electron-release.yml.

.github/workflows/electron-release.yml

@@ -279,9 +279,14 @@ jobs:
 
       - name: Smoke packaged Electron app (Linux)
         if: matrix.platform == 'linux'
+        # #7592: also cold-restart against the same DATA_DIR and assert a
+        # native SQLite driver (not the sql.js WASM fallback) is selected on
+        # the second launch — blocking here since Linux has no Windows-style
+        # sandbox caveats that would make it flaky.
         env:
           ELECTRON_SMOKE_TIMEOUT_MS: 60000
           ELECTRON_SMOKE_STREAM_LOGS: "1"
+          ELECTRON_SMOKE_COLD_RESTART: "1"
         run: xvfb-run -a npm run electron:smoke:packaged
 
       - name: Collect installers