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/package.json

@@ -1,7 +0,0 @@
-{
-  "name": "jflow-plugin-get-current-time",
-  "version": "0.1.0",
-  "private": true,
-  "type": "module",
-  "description": "Example JerapahFlow plugin (no npm dependencies)"
-}