chore: trim distribution clutter and add lint/test tooling

Keep only example workflows in default/, move site-specific YAMLs to gitignored local/, remove the duplicate get-current-time plugin install, document personal plugins, clarify PM2 ecosystem usage, add shared Vitest and web ESLint, and extract OpsStatusCard for ops cards.

Co-authored-by: Cursor <cursoragent@cursor.com>

plugins/get-current-time/jerapah-plugin.json

@@ -1,8 +0,0 @@
-{
-  "id": "get-current-time",
-  "name": "Get current time",
-  "version": "0.1.0",
-  "jerapah": ">=0.1.0 <1.0.0",
-  "main": "script.js",
-  "description": "Example user plugin: return the current time as output.datetime"
-}