feat: GeneralUpdate Claude Code 技能套件（完整版） (#7)

[JusterZhu]

• fix: resolve all 10 Copilot review comments

1. SemiUrsaClientView.axaml: Remove conv:StatusToVisibleConverter refs, use CanExecute for button visibility
2. DownloadViewModels.cs: Sync VersionText on stats change, clear SpeedText when not downloading
3. RealDownloadService.cs: Replace LaunchAsync() in CheckForUpdates with direct HTTP /Upgrade/Verification call (true check-only mode)
4. FullIntegration.cs: Add missing using directives (Event, Configuration), add hash length guard for truncation, fix speed unit duplication
5. reference.md: Fix framework version table (remove .NET Framework + .NET 8 conflation, use proper target framework monikers)
6. MinimalIntegration.cs: Fix System.Version comment accuracy
7. manifest.json: Remove JSON-invalid comment block, keep pure valid JSON

• fix: address Copilot review comments — API contracts, filenames, and API references

• Fix feat: GeneralUpdate Claude Code 技能套件 — 5 个技能覆盖完整集成生命周期 #1: RULES.md SetOption(Client) -> SetOption(AppType.Client)
• Fix feat: GeneralUpdate Claude Code 技能套件（深度细化版） #2: RULES.md manifest.json -> generalupdate.manifest.json
• Fix feat: multi-agent adapters — Cursor / Copilot / Cline / Codex CLI #3: backend-api.instructions.md add response wrapper { code, message, body }
• Fix Merge pull request #2 from GeneralLibrary/review/v2 #4: troubleshoot curl endpoint /api/update/check -> POST /Upgrade/Verification
• Fix fix: address Copilot review comments on PR #3 #5: cursor/generalupdate-init.mdc manifest.json -> generalupdate.manifest.json
• Fix Base/no adapters #6: clinerules/01-generalupdate-init.md manifest.json -> generalupdate.manifest.json
• Fix feat: GeneralUpdate Claude Code 技能套件（完整版） #7: troubleshoot LongPathSupport -> generic .NET long path guidance
• Fix feat: GeneralUpdate Claude Code 技能套件（完整版） (#7) #8: troubleshoot ZipSecurity -> entry path validation behavior
• Fix fix: rewrite all templates for NuGet v10.4.6 stable API, fix 12 CRITICAL bugs #9: troubleshoot SignalRRetryPolicy -> retry intent description

• i18n: convert all Chinese comments and docs to English, make skills bilingual

All code comments, XML docs, console log strings, UI labels, and documentation now use English (with bilingual status labels where helpful).

Converted files include:

• All 5 SKILL.md files (init/ui/strategy/advanced/troubleshoot)
• All 6 strategy example .cs files
• All 4 advanced template .cs files
• All 3 project scaffold files
• All 10+ UI template files (XAML/AXAML/CS)
• reference.md and troubleshooting reference
• All adapter files (.cursor/rules/, .clinerules/, .github/, RULES.md)

Skills now support both English and Chinese-speaking developers through bilingual status labels in UI templates.

• fix: resolve all 6 Copilot review comments on PR feat: GeneralUpdate Claude Code 技能套件（完整版） #7

1. MinimalIntegration.cs: Fix System.Version comment accuracy
2. RealDownloadService.cs: Accept _updateUrl as-is (no /Upgrade/Verification append), add tenantId, use TryGetProperty for response parsing, add productId param, lowercase platform values
3. NamedPipeIPC.cs: Use Environment.ProcessId for unique pipe name, enforce timeoutMs via linked CancellationTokenSource with TimeoutException
4. clinerules/05: Fix curl appType from 1 to 0, fix manifest path

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