fix(#1615): install Windsurf slash workflows

capabilities/windsurf/capability.json

@@ -3,7 +3,7 @@
   "role": "runtime",
   "version": "1.6.0-rc.2",
   "title": "Windsurf",
-  "description": "Windsurf (Codeium) — nested under ~/.codeium/windsurf; skills-only artifact layout; no hook surface; no hook events; tier-2 support.",
+  "description": "Windsurf (Codeium) — workspace workflow artifact layout for slash commands; no hook surface; no hook events; tier-2 support.",
   "tier": "core",
   "requires": [],
   "engines": {
@@ -20,24 +20,15 @@
     },
     "configFormat": "none",
     "artifactLayout": {
-      "global": [
-        {
-          "kind": "skills",
-          "destSubpath": "skills",
-          "prefix": "gsd-",
-          "nesting": "flat",
-          "recursive": false,
-          "converter": "convertClaudeCommandToWindsurfSkill"
-        }
-      ],
+      "global": [],
       "local": [
         {
-          "kind": "skills",
-          "destSubpath": "skills",
+          "kind": "commands",
+          "destSubpath": "workflows",
           "prefix": "gsd-",
           "nesting": "flat",
           "recursive": false,
-          "converter": "convertClaudeCommandToWindsurfSkill"
+          "converter": "convertClaudeCommandToWindsurfWorkflow"
         }
       ]
     },