Upgrade Omega Edit to v2.0.0-rc1

[scholarsmate]

• I have determined that no documentation updates are needed for these changes

What changed

• upgraded the Omega Edit integration to v2.0.0-rc1
• updated the data editor to the Omega Edit 2.x client APIs, including heartbeat and viewport subscription helpers
• adjusted server metrics and packaging to the new native runtime fields and @omega-edit/server/out layout
• refreshed the Omega Edit test startup call sites for the 2.x startServer(..., { logConfigFile }) signature

Why

Omega Edit v2.0.0-rc1 changes the client/server package layout and several APIs. This PR aligns the VS Code extension with the migration guide and the new helper APIs so we can validate the upgrade in CI.

Impact

• keeps the data editor building and packaging against the RC release
• updates the runtime metrics surfaced in the UI to match the new server fields
• ensures the packaged VSIX includes the server binaries from the new out/ directory structure

Validation

• yarn install
• yarn compile
• yarn test:svelte
• yarn vite:pkg
• yarn package

Notes

• node .\\out\\tests\\runTest.js still fails on this Windows environment because the downloaded Code.exe rejects the @vscode/test-electron launch flags (--no-sandbox, --extensionTestsPath, etc.), so the VS Code integration suite could not be exercised locally here.