Baseline before Postgres migration (WS0)

Snapshot before the DuckDB->PostgreSQL migration. data/, archive/, the 232MB
rebuild zip, the Windows .venv, and .env are excluded via .gitignore.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

package.json

@@ -0,0 +1,5 @@
+{
+  "dependencies": {
+    "claude": "^0.1.1"
+  }
+}