### 🔵 Needs a closer look

Stable publication needs human confirmation of release-pipeline results, which were unavailable despite consistent release metadata.

**0 open findings**

What changed in this PR

Prepares React Native Windows 0.85.0 for stable release, aligning runtime packages, tooling, and sample applications.

**Changes:**
- Promotes package versions and internal dependencies from preview to stable.
- Updates the lockfile, native version stamp, and release changelogs.
- Removes consumed release change files.

| File | Description |
| ---- | ----------- |
| yarn.lock | Aligns stable dependency resolutions. |
| vnext/​PropertySheets/​Generated/​PackageVersion.g.props | Stamps stable version and commit. |
| vnext/​package.json | Promotes runtime and dependencies. |
| vnext/​CHANGELOG.md | Adds stable release notes. |
| vnext/​CHANGELOG.json | Adds structured release metadata. |
| packages/​sample-custom-component/​package.json | Uses stable runtime. |
| packages/​sample-app-fabric/​package.json | Uses stable runtime. |
| packages/​react-native-windows-init/​package.json | Promotes initializer and dependencies. |
| packages/​react-native-windows-init/​CHANGELOG.md | Adds stable release notes. |
| packages/​react-native-windows-init/​CHANGELOG.json | Adds structured release metadata. |
| packages/​react-native-platform-override/​package.json | Promotes override tooling and dependencies. |
| packages/​react-native-platform-override/​CHANGELOG.md | Adds stable release notes. |
| packages/​react-native-platform-override/​CHANGELOG.json | Adds structured release metadata. |
| packages/​playground/​package.json | Uses stable runtime. |
| packages/​e2e-test-app-fabric/​package.json | Uses stable runtime and automation. |
| packages/​debug-test/​package.json | Uses stable testing dependencies. |
| packages/​@rnw-scripts/​unbroken/​package.json | Uses stable filesystem utilities. |
| packages/​@rnw-scripts/​take-screenshot/​package.json | Uses stable filesystem utilities. |
| packages/​@rnw-scripts/​stamp-version/​package.json | Uses stable package utilities. |
| packages/​@rnw-scripts/​promote-release/​package.json | Uses stable release dependencies. |
| packages/​@rnw-scripts/​prepare-release/​package.json | Uses stable release dependencies. |
| packages/​@rnw-scripts/​integrate-rn/​package.json | Uses stable integration dependencies. |
| packages/​@rnw-scripts/​doxysaurus/​package.json | Uses stable filesystem utilities. |
| packages/​@rnw-scripts/​create-github-releases/​package.json | Uses stable release dependencies. |
| packages/​@rnw-scripts/​beachball-config/​package.json | Uses stable package utilities. |
| packages/​@react-native-windows/​tester/​package.json | Aligns stable runtime dependencies. |
| packages/​@react-native-windows/​telemetry/​package.json | Promotes telemetry and dependencies. |
| packages/​@react-native-windows/​telemetry/​CHANGELOG.md | Adds stable release notes. |
| packages/​@react-native-windows/​telemetry/​CHANGELOG.json | Adds structured release metadata. |
| packages/​@react-native-windows/​perf-testing/​package.json | Promotes performance tooling. |
| packages/​@react-native-windows/​perf-testing/​CHANGELOG.md | Adds stable release notes. |
| packages/​@react-native-windows/​perf-testing/​CHANGELOG.json | Adds structured release metadata. |
| packages/​@react-native-windows/​package-utils/​package.json | Promotes package utilities and dependencies. |
| packages/​@react-native-windows/​package-utils/​CHANGELOG.md | Adds stable release notes. |
| packages/​@react-native-windows/​package-utils/​CHANGELOG.json | Adds structured release metadata. |
| packages/​@react-native-windows/​fs/​package.json | Promotes filesystem utilities. |
| packages/​@react-native-windows/​fs/​CHANGELOG.md | Adds stable release notes. |
| packages/​@react-native-windows/​fs/​CHANGELOG.json | Adds struct...