Add TLD BSA enroll start date to schema (#2215)

Also adds a placeholder getter in the Tld class, so that it can be
mocked/spied in tests. This way more BSA related code can be submitted
before the schema is deployed to prod.

db/src/main/resources/sql/er_diagram/brief_er_diagram.html

@@ -261,11 +261,11 @@ td.section {
     </tr>
     <tr>
      <td class="property_name">generated on</td>
-     <td class="property_value">2023-11-02 18:26:18.901466</td>
+     <td class="property_value">2023-11-09 01:49:59.861801</td>
     </tr>
     <tr>
      <td class="property_name">last flyway file</td>
-     <td id="lastFlywayFile" class="property_value">V149__add_bsa_domain_in_use_table.sql</td>
+     <td id="lastFlywayFile" class="property_value">V150__add_tld_bsa_enroll_date.sql</td>
     </tr>
    </tbody>
   </table>
@@ -285,7 +285,7 @@ td.section {
      generated on
     </text>
     <text text-anchor="start" x="3835.5" y="-10.8" font-family="Helvetica,sans-Serif" font-size="14.00">
-     2023-11-02 18:26:18.901466
+     2023-11-09 01:49:59.861801
     </text>
     <polygon fill="none" stroke="#888888" points="3748,-4 3748,-44 4013,-44 4013,-4 3748,-4" /> <!-- allocationtoken_a08ccbef -->
     <g id="node1" class="node">

db/src/main/resources/sql/flyway.txt

@@ -147,3 +147,4 @@ V146__last_update_time_via_epp.sql
 V147__drop_gaia_id_from_user.sql
 V148__add_bsa_download_and_label_tables.sql
 V149__add_bsa_domain_in_use_table.sql
+V150__add_tld_bsa_enroll_date.sql

db/src/main/resources/sql/flyway/V150__add_tld_bsa_enroll_date.sql

@@ -0,0 +1,15 @@
+-- Copyright 2023 The Nomulus Authors. All Rights Reserved.
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+
+ALTER TABLE public."Tld" ADD COLUMN bsa_enroll_start_time timestamptz;

db/src/main/resources/sql/schema/nomulus.golden.sql

@@ -1146,7 +1146,8 @@ CREATE TABLE public."Tld" (
     dns_ds_ttl interval,
     dns_ns_ttl interval,
     idn_tables text[],
-    breakglass_mode boolean DEFAULT false NOT NULL
+    breakglass_mode boolean DEFAULT false NOT NULL,
+    bsa_enroll_start_time timestamp with time zone
 );