Revert "feat(ecc): prune plugin 43→12 items, promote 7 rules to .claude/rules/ (#245)"

This reverts commit 1bd68ff534.

.opencode/commands/test-coverage.md

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+---
+description: Analyze and improve test coverage
+agent: tdd-guide
+subtask: true
+---
+
+# Test Coverage Command
+
+Analyze test coverage and identify gaps: $ARGUMENTS
+
+## Your Task
+
+1. **Run coverage report**: `npm test -- --coverage`
+2. **Analyze results** - Identify low coverage areas
+3. **Prioritize gaps** - Critical code first
+4. **Generate missing tests** - For uncovered code
+
+## Coverage Targets
+
+| Code Type | Target |
+|-----------|--------|
+| Standard code | 80% |
+| Financial logic | 100% |
+| Auth/security | 100% |
+| Utilities | 90% |
+| UI components | 70% |
+
+## Coverage Report Analysis
+
+### Summary
+```
+File           | % Stmts | % Branch | % Funcs | % Lines
+---------------|---------|----------|---------|--------
+All files      |   XX    |    XX    |   XX    |   XX
+```
+
+### Low Coverage Files
+[Files below target, prioritized by criticality]
+
+### Uncovered Lines
+[Specific lines that need tests]
+
+## Test Generation
+
+For each uncovered area:
+
+### [Function/Component Name]
+
+**Location**: `src/path/file.ts:123`
+
+**Coverage Gap**: [description]
+
+**Suggested Tests**:
+```typescript
+describe('functionName', () => {
+  it('should [expected behavior]', () => {
+    // Test code
+  })
+
+  it('should handle [edge case]', () => {
+    // Edge case test
+  })
+})
+```
+
+## Coverage Improvement Plan
+
+1. **Critical** (add immediately)
+   - [ ] file1.ts - Auth logic
+   - [ ] file2.ts - Payment handling
+
+2. **High** (add this sprint)
+   - [ ] file3.ts - Core business logic
+
+3. **Medium** (add when touching file)
+   - [ ] file4.ts - Utilities
+
+---
+
+**IMPORTANT**: Coverage is a metric, not a goal. Focus on meaningful tests, not just hitting numbers.