fix: include skills/ in npm publish for all packages

The skills/ directories were missing from the files array in each
package.json, so they were excluded from npm publishes. This meant
npx @tanstack/intent install could not find any skills.

Author: AlemTuzlak

.changeset/include-skills-in-publish.md

@@ -0,0 +1,8 @@
+---
+"@tanstack/devtools": patch
+"@tanstack/devtools-event-client": patch
+"@tanstack/devtools-vite": patch
+"@tanstack/devtools-utils": patch
+---
+
+Include skills/ directory in npm publish so `npx @tanstack/intent install` can discover them

packages/devtools-utils/package.json

@@ -98,7 +98,8 @@
   },
   "files": [
     "dist/",
-    "src"
+    "src",
+    "skills"
   ],
   "scripts": {
     "clean": "premove ./build ./dist",

packages/devtools-vite/package.json

@@ -35,7 +35,8 @@
   },
   "files": [
     "dist/",
-    "src"
+    "src",
+    "skills"
   ],
   "scripts": {
     "clean": "premove ./build ./dist",

packages/devtools/package.json

@@ -46,7 +46,8 @@
   },
   "files": [
     "dist/",
-    "src"
+    "src",
+    "skills"
   ],
   "scripts": {
     "clean": "premove ./build ./dist",

packages/event-bus-client/package.json

@@ -40,7 +40,8 @@
   },
   "files": [
     "dist/",
-    "src"
+    "src",
+    "skills"
   ],
   "scripts": {
     "clean": "premove ./build ./dist",