fix: review fixes — vault-context.sh .git exclusion + sample-note-2 schema update

- vault-context.sh: add ! -path '*/.git/*' to exclude .git subdirs
  from PARA path listing
- sample-vault-note-2.md (both skills): add missing frontmatter fields
  (ai_distill_depth, distill_layer, content_hash, entities, related)

Author: LeeJuOh

container/skills/para-brain/evals/files/sample-vault-note-2.md

@@ -5,10 +5,15 @@ source_type: web
 captured: 2026-03-12T10:00:00+09:00
 processed: 2026-03-12T10:00:05+09:00
 status: pending_review
+ai_distill_depth: 0
+distill_layer: 0
+content_hash: "sha256:f8c3a1b2d4e5f67890abcdef1234567890abcdef1234567890abcdef12345678"
+captured_via: telegram
 tags: [react, server-components, frontend]
 contexts: []
+entities: []
+related: []
 ai_summary: "React Server Components는 서버에서 렌더링되어 클라이언트 번들 크기를 줄이고, 데이터 페칭을 단순화한다."
-captured_via: telegram
 ---
 
 # React Server Components 실전 가이드

container/skills/para-pipeline/evals/files/sample-vault-note-2.md

@@ -5,10 +5,15 @@ source_type: web
 captured: 2026-03-12T10:00:00+09:00
 processed: 2026-03-12T10:00:05+09:00
 status: pending_review
+ai_distill_depth: 0
+distill_layer: 0
+content_hash: "sha256:f8c3a1b2d4e5f67890abcdef1234567890abcdef1234567890abcdef12345678"
+captured_via: telegram
 tags: [react, server-components, frontend]
 contexts: []
+entities: []
+related: []
 ai_summary: "React Server Components는 서버에서 렌더링되어 클라이언트 번들 크기를 줄이고, 데이터 페칭을 단순화한다."
-captured_via: telegram
 ---
 
 # React Server Components 실전 가이드

container/skills/para-pipeline/scripts/vault-context.sh

@@ -6,7 +6,7 @@ VAULT="${VAULT:-/workspace/extra/vault}"
 if [ -d "$VAULT" ]; then
   TOTAL=$(find "$VAULT" -name '*.md' ! -name '_*' | wc -l | tr -d ' ')
   INBOX=$(find "$VAULT/inbox" -name '*.md' 2>/dev/null | wc -l | tr -d ' ')
-  PARA_DIRS=$(find "$VAULT" -mindepth 1 -maxdepth 2 -type d ! -name '.*' ! -name inbox ! -name _logs | head -20 | sed "s|$VAULT/||" | tr '\n' ', ')
+  PARA_DIRS=$(find "$VAULT" -mindepth 1 -maxdepth 2 -type d ! -name '.*' ! -path '*/.git/*' ! -name inbox ! -name _logs | head -20 | sed "s|$VAULT/||" | tr '\n' ', ')
   RECENT_TAGS=$(grep -rh '^tags:' "$VAULT/inbox/" 2>/dev/null | sed 's/tags: *\[//;s/\]//;s/, /\n/g' | sort | uniq -c | sort -rn | head -10 | awk '{print $2}' | tr '\n' ', ')
 
   cat <<CONTEXT