fix: RLS seeding, FQDN 422, stale migration hash, mail_accounts.password_salt

- Use migration engine (crm_migration, BYPASSRLS) for default data seeding
  in app/main.py instead of crm_api role which is RLS-enforced
- Skip domains PATCH for dockercompose apps in deploy_api() to avoid 422
- Regenerate migration_hashes.txt for 0085_restore_tenant_rls.py
- Add migration 0110: password_salt column to mail_accounts

alembic/versions/0110_add_password_salt_to_mail_accounts.py

@@ -0,0 +1,39 @@
+"""Add password_salt column to mail_accounts.
+
+⚠️ KI / AGENT HINWEIS — BITTE VOR ÄNDERUNGEN LESEN ⚠️
+
+Das ORM-Model MailAccount (app/plugins/builtins/mail/models.py) referenziert
+die Spalte `password_salt` (String(64), nullable=False, default="").
+In der Produktions-DB fehlt diese Spalte, was zu SQLAlchemy-Fehlern führt
+beim Lesen oder Schreiben von MailAccount-Datensätzen.
+
+Diese Migration fügt die Spalte mit ADD COLUMN IF NOT EXISTS hinzu, sodass
+bestehende Datensätze den Default-Wert "" (leerer String) erhalten.
+
+Revision ID: 0110
+Revises: 0109
+"""
+
+from __future__ import annotations
+
+from alembic import op
+import sqlalchemy as sa
+
+revision = "0110"
+down_revision = "0109"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.execute(
+        "ALTER TABLE mail_accounts "
+        "ADD COLUMN IF NOT EXISTS password_salt VARCHAR(64) NOT NULL DEFAULT ''"
+    )
+
+
+def downgrade() -> None:
+    op.execute(
+        "ALTER TABLE mail_accounts "
+        "DROP COLUMN IF EXISTS password_salt"
+    )