fix(test): restore cross-platform quality gates

[SunwardL]

Summary / 概要

• Restore the cross-platform quality-gate baseline after rebasing onto the latest develop.
• Fix stale test expectations, Windows-specific failures, and cross-platform path handling.
• Correct the OpenCode anonymous free-model catalog and unblock every PR packaging gate.
• Keep the quality-gate work independent from the memory-foundation PR.

Why / 背景

The branch had diverged from the latest develop. After rebasing, the full validation exposed stale fixtures, Windows cleanup races, host-dependent path behavior, stale provider data, packaging bloat, and packaged handoff/health-check issues.

This PR fixes those problems so subsequent memory-module changes can be reviewed on a clean baseline.

Changes / 变更

• Restore provider catalog and provider settings test coverage.
• Keep OpenCore Free limited to current, non-deprecated, zero-cost models that support anonymous Chat Completions; block incompatible Responses-only imports.
• Treat disconnected Graph streams as recoverable.
• Fix Windows process cleanup and installer recovery metadata.
• Make the Windows update health renderer use the preload's real startup IPC channel.
• Start the packaged health Runtime through Electron's Node mode, isolate its Service Manager/data plane, and tear both processes down after the probe.
• Bound the internal update health contract to 120 seconds, use a dynamic loopback port, fail immediately on Runtime exit, and preserve phase/Runtime/Manager diagnostics without exposing tokens.
• Prevent unnecessary rewrites of semantically unchanged Kun configuration.
• Fix cross-platform path handling for GitHub CLI, bundled skills, Chromium cookies, PPT and Git review.
• Update test fixtures for the current extension API, proxy routing and provider-probe contracts.
• Align the latest Board route, retired perspective panel, app keep-awake defaults, Runtime version identity, Todo document-edit semantics, and GitHub MCP settings IPC schema.
• Split hybrid-store migration and usage helpers to satisfy the 700-line file limit.
• Split child result helpers and protected approval contracts introduced by the latest develop so every tracked source remains below 700 lines.
• Improve Windows test cleanup reliability.
• Remove the duplicated bundled Gemini CLI dependency; Kun now discovers an official system installation.
• Correct the recycled-PID handoff fixture so an unrelated helper is not advertised as a Runtime data-directory owner, and preserve process output on future smoke failures.

Media / 截图或录屏

• N/A — no user-facing visual redesign.

Tests / 测试

• npm run typecheck
• npm run lint — 0 errors, 30 pre-existing React Hooks warnings
• npm run build
• npm run check:file-lines
• Provider, settings, update-health, official CLI, and TUI targeted Vitest coverage
• Packaged handoff Node contract tests
• Packaged recycled-PID handoff smoke on macOS arm64
• Local Electron-as-Node Runtime /health and thread create/read/delete smoke with an isolated Service Manager
• GitHub PR checks will re-run against commit ae5635b39335aafcf4e39b9bec756818b2b3716b rebased on d0e3103390257bf15a0942f33ca2a78f4b99c575.

Validation / 验证

• I agree that this contribution is submitted under the Contributor License Agreement.
• Local tests passed
• Typecheck passed
• Build passed
• Logic tests added or updated

Notes / 备注

• Base: KunAgent/Kun:develop
• Head: SunwardL/Kun:codex/fix-quality-gate-baseline
• Commit: ae5635b39335aafcf4e39b9bec756818b2b3716b

[XingYu-Zhong]

Reviewed and validated after the quality-gate, provider-catalog, packaging, handoff, and Windows health-bootstrap fixes. Approving commit 48e63e5 pending required checks.

[XingYu-Zhong]

Approved after validating the final health-first entry routing and stable out/main bundle-root normalization at commit 32d24fd.

[XingYu-Zhong]

Approved at commit a97bb39 after validating health-first routing and stable main bundle-root resolution for split chunks.

[XingYu-Zhong]

Approved at commit f1cbdeb after validating combined ExecShellAsUser health arguments, split bundle roots, and all local checks.

[XingYu-Zhong]

Approved at commit b0b57a9 after removing the health bootstrap import cycle and validating the compiled chunk graph.

[XingYu-Zhong]

Re-approved after rebasing onto the latest develop and validating the bounded Windows update-health Runtime fix.

[XingYu-Zhong]

Re-approved after aligning the latest develop quality-gate contracts.