darwin: add test prompts for 5 skills (baseline pass)

Skills covered: close, graphify, harden, profile, prune-memory.
Used by /darwin-skill dim 8 effect testing.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

skills/profile/test-prompts.json

@@ -0,0 +1,5 @@
+[
+  {"id": 1, "prompt": "profile list", "expected": "Skill runs `bash $HOME/.claude/lib/profile.sh list` and prints the table of available profiles (web, seo, web-full, backend, design, dev, qa, audit, minimal) without extra commentary."},
+  {"id": 2, "prompt": "active les skills design — désactive le bruit gstack", "expected": "Skill interprets this as `set design` (destructive — disables non-listed gstack skills), confirms first since `set` is destructive, then runs `bash $HOME/.claude/lib/profile.sh set design` and reports the count of skills moved plus the reminder to start a new Claude session to pick up changes."},
+  {"id": 3, "prompt": "quel profil est actif?", "expected": "Skill runs `bash $HOME/.claude/lib/profile.sh current` and reports the detected active profile with its match percentage; does NOT toggle any symlinks."}
+]