feat(package): add project metadata, release configuration, and README documentation

package.json

@@ -2,11 +2,29 @@
   "name": "@maintainable.xyz/house-spec",
   "version": "1.0.0",
   "private": true,
-  "description": "Baufritz house specification \u2014 air system, sensors, and builder coordination",
+  "description": "Open specification for building maximally maintainable, healthy homes — H13 HEPA air system, Lindner Doppelboden, Plafotherm ceiling, Baufritz timber-frame",
   "type": "module",
   "scripts": {
     "build": "tsx build.ts"
   },
+  "repository": {
+    "type": "git",
+    "url": "https://code.foss.global/maintainable.xyz/house-spec.git"
+  },
+  "homepage": "https://maintainable.xyz",
+  "license": "UNLICENSED",
+  "author": "maintainable.xyz",
+  "keywords": [
+    "house",
+    "specification",
+    "baufritz",
+    "hepa",
+    "air-quality",
+    "lindner",
+    "doppelboden",
+    "plafotherm",
+    "maintainability"
+  ],
   "devDependencies": {
     "tsx": "^4.19.0",
     "marked": "^15.0.0",