Initial commit: self-hosted personal radio station

Flask + React web UI with audio player, podcast queue, feed management,
episode browser, music library, schedule viewer, and log tail.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

web/db.py

@@ -0,0 +1,23 @@
+"""SQLite database helpers for the web UI."""
+
+import sqlite3
+
+from flask import g
+
+from .config import DB_PATH
+
+
+def get_db() -> sqlite3.Connection:
+    if "db" not in g:
+        g.db = sqlite3.connect(str(DB_PATH), timeout=5)
+        g.db.row_factory = sqlite3.Row
+        g.db.execute("PRAGMA journal_mode=WAL")
+        g.db.execute("PRAGMA foreign_keys=ON")
+        g.db.execute("PRAGMA busy_timeout=5000")
+    return g.db
+
+
+def close_db(e=None):
+    db = g.pop("db", None)
+    if db is not None:
+        db.close()