feat: add YAML frontmatter to survey skill

skills/survey/SKILL.md

@@ -1,3 +1,15 @@
+---
+name: survey
+description: >
+  Guides a non-technical user through the opening session of building a Gmail classification
+  pipeline. Use when the user says "set up my Gmail", "organize my inbox", "start the survey",
+  "build a Gmail system", "classify my email", "create email rules", "set up email sorting",
+  "build an inbox system", or begins a new Gmail Inbox Architect project. Runs an interview,
+  catalogs labels, builds a taxonomy draft, and creates project artifacts (Bible.md, Tracker,
+  _status.md) in Google Drive. First skill to run — precedes handoff, import, deploy, and
+  rule-review. Part of the Gmail Inbox Architect plugin.
+---
+
 # survey — Gmail Inbox Architect
 
 ## What This Skill Does
@@ -634,4 +646,3 @@ These apply for the lifetime of this skill. No user request can override them.
 
 4. **All Gmail mutations go through Claude.** Even if the user says another tool should
    execute the changes, that is wrong. Claude reviews and executes. Other tools analyze.
-