feat(security,ui): self-host React deps, Tailwind, fonts; strict CSP; local QR; better selection state

Replace CDN React/ReactDOM/Babel with local libs; remove Babel and inline scripts
Build Tailwind locally, add safelist; switch to assets/tailwind.css
Self-host Font Awesome and Inter (CSS + woff2); remove external font CDNs
Implement strict CSP (no unsafe-inline/eval; scripts/styles/fonts from self)
Extract inline handlers; move PWA scripts to external files
Add local QR code generation (qrcode lib) and remove api.qrserver.com
Improve SessionTypeSelector visual selection (highlighted background and ring)
Keep PWA working with service worker and offline assets
Refs: CSP hardening, offline-first, no external dependencies

node_modules/yargs/locales/pirate.json

@@ -0,0 +1,13 @@
+{
+  "Commands:": "Choose yer command:",
+  "Options:": "Options for me hearties!",
+  "Examples:": "Ex. marks the spot:",
+  "required": "requi-yar-ed",
+  "Missing required argument: %s": {
+    "one": "Ye be havin' to set the followin' argument land lubber: %s",
+    "other": "Ye be havin' to set the followin' arguments land lubber: %s"
+  },
+  "Show help": "Parlay this here code of conduct",
+  "Show version number": "'Tis the version ye be askin' fer",
+  "Arguments %s and %s are mutually exclusive" : "Yon scurvy dogs %s and %s be as bad as rum and a prudish wench"
+}