chore: npm publish setup, fallback docs, release workflow (fixes #49)

- package.json: yaml in devDependencies, repo url/bin from npm pkg fix
- README, GETTING_STARTED, FAQ: fallback npx github:sickn33/antigravity-awesome-skills on 404
- publish-npm.yml: workflow on release published + workflow_dispatch
- MAINTENANCE: bump package.json, publish to npm (manual + NPM_TOKEN CI)
- release_cycle.sh: catalog step, version check, npm publish reminder
- ISSUE_49_COMMENT.md: suggested reply for issue #49

package.json

@@ -12,15 +12,15 @@
     "catalog": "node scripts/build-catalog.js",
     "build": "npm run chain && npm run catalog"
   },
-  "dependencies": {
+  "devDependencies": {
     "yaml": "^2.8.2"
   },
   "repository": {
     "type": "git",
-    "url": "https://github.com/sickn33/antigravity-awesome-skills.git"
+    "url": "git+https://github.com/sickn33/antigravity-awesome-skills.git"
   },
   "bin": {
-    "antigravity-awesome-skills": "./bin/install.js"
+    "antigravity-awesome-skills": "bin/install.js"
   },
   "files": [
     "bin"