Add web push

app/migrations/_057_web_push.py

@@ -0,0 +1,47 @@
+import logging
+
+import aiosqlite
+
+logger = logging.getLogger(__name__)
+
+
+async def migrate(conn: aiosqlite.Connection) -> None:
+    """Add VAPID key columns and push_subscriptions table for Web Push."""
+
+    # VAPID key pair stored in app_settings (one per instance)
+    table_check = await conn.execute(
+        "SELECT name FROM sqlite_master WHERE type='table' AND name='app_settings'"
+    )
+    if await table_check.fetchone():
+        cursor = await conn.execute("PRAGMA table_info(app_settings)")
+        columns = {row[1] for row in await cursor.fetchall()}
+
+        if "vapid_private_key" not in columns:
+            await conn.execute(
+                "ALTER TABLE app_settings ADD COLUMN vapid_private_key TEXT DEFAULT ''"
+            )
+        if "vapid_public_key" not in columns:
+            await conn.execute(
+                "ALTER TABLE app_settings ADD COLUMN vapid_public_key TEXT DEFAULT ''"
+            )
+
+    # Push subscriptions — one row per browser
+    await conn.execute(
+        """
+        CREATE TABLE IF NOT EXISTS push_subscriptions (
+            id TEXT PRIMARY KEY,
+            endpoint TEXT NOT NULL,
+            p256dh TEXT NOT NULL,
+            auth TEXT NOT NULL,
+            label TEXT NOT NULL DEFAULT '',
+            filter_mode TEXT NOT NULL DEFAULT 'all_messages',
+            filter_conversations TEXT NOT NULL DEFAULT '[]',
+            created_at INTEGER NOT NULL,
+            last_success_at INTEGER,
+            failure_count INTEGER DEFAULT 0,
+            UNIQUE(endpoint)
+        )
+        """
+    )
+
+    await conn.commit()