chore(skills): grill-me 스킬 제거

- .agents/skills/grill-me/SKILL.md, skills-lock.json 삭제
- .claude/skills/grill-me 심볼릭 링크 삭제(미추적)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.agents/skills/grill-me/SKILL.md

@@ -1,10 +0,0 @@
----
-name: grill-me
-description: Interview the user relentlessly about a plan or design until reaching shared understanding, resolving each branch of the decision tree. Use when user wants to stress-test a plan, get grilled on their design, or mentions "grill me".
----
-
-Interview me relentlessly about every aspect of this plan until we reach a shared understanding. Walk down each branch of the design tree, resolving dependencies between decisions one-by-one. For each question, provide your recommended answer.
-
-Ask the questions one at a time.
-
-If a question can be answered by exploring the codebase, explore the codebase instead.

skills-lock.json

@@ -1,11 +0,0 @@
-{
-  "version": 1,
-  "skills": {
-    "grill-me": {
-      "source": "mattpocock/skills",
-      "sourceType": "github",
-      "skillPath": "skills/productivity/grill-me/SKILL.md",
-      "computedHash": "784f0dbb7403b0f00324bce9a112f715342777a0daee7bbb7385f9c6f0a170ea"
-    }
-  }
-}