install pql skill and add pql permissions

pql init --with-skill=yes installs .claude/skills/pql/SKILL.md
covering vault queries and the planning surface (decisions +
tickets). Lock file tracks version + SHA-256 for drift detection.

Bash(pql) and Bash(pql *) added to .claude/settings.json so
pql commands run without permission prompts.

Co-Authored-By: Claude <noreply@anthropic.com>

.claude/settings.json

@@ -5,7 +5,9 @@
       "Bash(git commit *)",
       "Bash(dart *)",
       "Bash(flutter *)",
-      "Bash(make *)"
+      "Bash(make *)",
+      "Bash(pql)",
+      "Bash(pql *)"
     ],
     "deny": [
       "Bash(rm -rf /*)",