Restore stashed WIP: live streaming plan, forms, CI pipeline, streaming demo

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

shared/static/styles/tailwind.config.js

@@ -5,6 +5,10 @@ module.exports = {
     // Levels 1–4 produce shades 400–100 (level 5+ yields 0 or negative = no match)
     { pattern: /^bg-sky-(100|200|300|400|500)$/ },
     { pattern: /^bg-violet-(100|200|300|400|500)$/ },
+    // Streaming demo: ~streaming-demo-chunk builds classes dynamically via (str ...)
+    // from a color map — Tailwind scanner can't detect these in string literals.
+    { pattern: /^(bg|text|border)-(green|blue|amber)-(50|100|200|300|400|500|600|700|800|900)$/ },
+    'w-3', 'h-3', 'w-1/3', 'w-2/3', 'w-1/2', 'w-3/4', 'animate-pulse',
   ],
   content: [
     '/root/rose-ash/shared/sx/templates/**/*.sx',