Add Windows ARM64 desktop release packaging, verify architecture-specific sidecar/native files in package smoke, and give the Electron sidecar more startup time plus early diagnostics for slow Windows ARM launches.
Tested: bun test electron/services/sidecarManager.test.ts
Tested: bun test scripts/quality-gate/package-smoke/index.test.ts scripts/release-update-metadata.test.ts scripts/pr/release-workflow.test.ts
Tested: bun run check:native
Tested: bun run check:policy
Not-tested: full bun run verify / coverage; this was a local issue-fix handoff, not PR-ready validation.
Confidence: high
Scope-risk: moderate