feat: The Other Dude v9.0.1 — full-featured email system

ci: add GitHub Pages deployment workflow for docs site

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

backend/alembic/versions/024_contact_email_and_offline_rule.py

@@ -0,0 +1,41 @@
+"""Add contact_email to tenants and seed device_offline default alert rule.
+
+Revision ID: 024
+Revises: 023
+"""
+
+from alembic import op
+import sqlalchemy as sa
+
+
+revision = "024"
+down_revision = "023"
+
+
+def upgrade() -> None:
+    conn = op.get_bind()
+
+    # 1. Add contact_email column to tenants
+    op.add_column("tenants", sa.Column("contact_email", sa.String(255), nullable=True))
+
+    # 2. Seed device_offline default alert rule for all existing tenants
+    conn.execute(sa.text("""
+        INSERT INTO alert_rules (id, tenant_id, name, metric, operator, threshold, duration_polls, severity, enabled, is_default)
+        SELECT gen_random_uuid(), t.id, 'Device Offline', 'device_offline', 'eq', 1, 1, 'critical', TRUE, TRUE
+        FROM tenants t
+        WHERE t.id != '00000000-0000-0000-0000-000000000000'
+          AND NOT EXISTS (
+            SELECT 1 FROM alert_rules ar
+            WHERE ar.tenant_id = t.id AND ar.metric = 'device_offline' AND ar.is_default = TRUE
+          )
+    """))
+
+
+def downgrade() -> None:
+    conn = op.get_bind()
+
+    conn.execute(sa.text("""
+        DELETE FROM alert_rules WHERE metric = 'device_offline' AND is_default = TRUE
+    """))
+
+    op.drop_column("tenants", "contact_email")