Fix vault_search.sh: move rg -g glob filters before --

Placing -g after -- made ripgrep treat the filters as literal
positional paths instead of options, so the .obsidian/.git/*.md
exclusions were silently inert (confirmed: matched inside a .pdf).

skills/obsidian-vault-kb/scripts/vault_search.sh

@@ -52,8 +52,8 @@ echo "== Search root: $SEARCH_ROOT =="
 echo
 
 if command -v rg >/dev/null 2>&1; then
-  rg -i -n --fixed-strings -- "$QUERY" "$SEARCH_ROOT" \
-    -g '!.obsidian' -g '!.git' -g '*.md' || echo "(no matches)"
+  rg -i -n --fixed-strings -g '!.obsidian' -g '!.git' -g '*.md' \
+    -- "$QUERY" "$SEARCH_ROOT" || echo "(no matches)"
 else
   grep -ril -- "$QUERY" "$SEARCH_ROOT" --include='*.md' 2>/dev/null || echo "(no matches)"
 fi