Add shareable multi-board links with paper UI and voice notes.

Boards use /b/<uid> with no invite password; restore renamable columns,
recordings, and seeded locale notes, with first column locked.

scripts/create_board.py

@@ -0,0 +1,29 @@
+"""Create an extra Stork board (or use the public Start button).
+
+Usage:
+  STORK_URL=https://stork.levkin.ca \\
+  STORK_BOARD_TITLE='Dan & Mira' \\
+    .venv/bin/python scripts/create_board.py
+"""
+
+from __future__ import annotations
+
+import os
+
+import httpx
+
+
+def main() -> int:
+    base = os.environ.get("STORK_URL", "http://127.0.0.1:8094").rstrip("/")
+    title = os.environ.get("STORK_BOARD_TITLE", "").strip() or "Name board"
+    with httpx.Client(base_url=base, timeout=30.0) as client:
+        res = client.post("/api/boards", json={"title": title})
+        res.raise_for_status()
+        data = res.json()
+    print(f"Board: {data['title']} ({data['id']})")
+    print(f"Share URL: {data['url']}")
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())