feat(html): add @choojs/html — server renderer, raw(), morph

ESM ports with attribution: nanohtml 1.10.0 server tag (browserify/babel
transform branches removed — pure runtime), raw-server, and nanomorph 5.4.3
consolidated into one module. browser.js is a Phase 2 placeholder that
throws loudly. Covered by test/server.test.js on node:test.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014NgfSjHE11oFpoSnLVKLXd

packages/html/package.json

@@ -0,0 +1,31 @@
+{
+  "name": "@choojs/html",
+  "version": "8.0.0-dev",
+  "description": "HTML template literals that render to DOM in the browser and strings on the server",
+  "type": "module",
+  "exports": {
+    ".": {
+      "browser": "./browser.js",
+      "default": "./server.js"
+    },
+    "./raw": "./raw.js",
+    "./morph": "./morph.js"
+  },
+  "files": [
+    "browser.js",
+    "server.js",
+    "raw.js",
+    "morph.js"
+  ],
+  "engines": {
+    "node": ">=24"
+  },
+  "repository": "choojs/choo",
+  "keywords": [
+    "html",
+    "template",
+    "tagged-template",
+    "server-side-rendering"
+  ],
+  "license": "MIT"
+}