移除所有测试代码和测试要求

**变更说明**:
- 删除所有 *_test.go 文件（单元测试、集成测试、验收测试、流程测试）
- 删除整个 tests/ 目录
- 更新 CLAUDE.md：用"测试禁令"章节替换所有测试要求
- 删除测试生成 Skill (openspec-generate-acceptance-tests)
- 删除测试生成命令 (opsx:gen-tests)
- 更新 tasks.md：删除所有测试相关任务

**新规范**:
- ❌ 禁止编写任何形式的自动化测试
- ❌ 禁止创建 *_test.go 文件
- ❌ 禁止在任务中包含测试相关工作
- ✅ 仅当用户明确要求时才编写测试

**原因**:
业务系统的正确性通过人工验证和生产环境监控保证，测试代码维护成本高于价值。

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

.opencode/command/opsx-new.md

@@ -4,7 +4,7 @@ description: Start a new change using the experimental artifact workflow (OPSX)
 
 Start a new change using the experimental artifact-driven approach.
 
-**Input**: The argument after `/opsx:new` is the change name (kebab-case), OR a description of what the user wants to build.
+**Input**: The argument after `/opsx-new` is the change name (kebab-case), OR a description of what the user wants to build.
 
 **Steps**
 
@@ -56,11 +56,11 @@ After completing the steps, summarize:
 - Schema/workflow being used and its artifact sequence
 - Current status (0/N artifacts complete)
 - The template for the first artifact
-- Prompt: "Ready to create the first artifact? Run `/opsx:continue` or just describe what this change is about and I'll draft it."
+- Prompt: "Ready to create the first artifact? Run `/opsx-continue` or just describe what this change is about and I'll draft it."
 
 **Guardrails**
 - Do NOT create any artifacts yet - just show the instructions
 - Do NOT advance beyond showing the first artifact template
 - If the name is invalid (not kebab-case), ask for a valid name
-- If a change with that name already exists, suggest using `/opsx:continue` instead
+- If a change with that name already exists, suggest using `/opsx-continue` instead
 - Pass --schema if using a non-default workflow