Initial house specification: air system, sensors, Lindner Doppelboden + Plafotherm ceiling

- 01: H13 HEPA whole-house air filtration, MVHR, duct design, pressure management
- 02: Sensor placement, automation logic, Home Assistant integration, wiring
- 03: Baufritz builder coordination, construction checkpoints, timeline
- 04: Lindner NORTEC Doppelboden with WOODline parquet + Plafotherm AirHybrid radiant ceiling
- Build system: tsx + marked + puppeteer, renders Mermaid diagrams to PDF

tsconfig.json

@@ -0,0 +1,14 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "module": "ESNext",
+    "moduleResolution": "bundler",
+    "esModuleInterop": true,
+    "strict": true,
+    "skipLibCheck": true,
+    "outDir": "./dist",
+    "rootDir": "."
+  },
+  "include": ["build.ts"],
+  "exclude": ["node_modules", "dist"]
+}