AC Coverage Assistant | AC 覆蓋率助手

Analyze Acceptance Criteria (AC) to test traceability and generate coverage reports.

分析驗收條件（AC）與測試之間的追蹤關係，並產生覆蓋率報告。

What This Does vs `/coverage` | 與 `/coverage` 的區別

Aspect	`/coverage`	`/ac-coverage`
Scope	Code-level (line/branch/function)	Requirement-level (AC-to-test)
Input	Source code + test runner	SPEC file + test annotations
Question	"How much code is tested?"	"Which AC have tests?"
Output	Coverage percentages	Traceability matrix + gap report