feat(migration): add organization_id column to audit_log (#2789)

Adds an organization_id column and (organization_id, timestamp DESC)
index to the audit_log table on both MySQL and Postgres, so
organization-level events can be stored there with an empty
environment_id and read by organization admins.

Step 1 of #1982.

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

Author: hvn2k1

migration/mysql/20260826000000_add_audit_log_organization_id.sql

@@ -0,0 +1,4 @@
+-- Modify "audit_log" table: organization-level events are stored here with an
+-- empty environment_id, so organization admins can read their own activity.
+ALTER TABLE `audit_log` ADD COLUMN `organization_id` varchar(255) NOT NULL DEFAULT '', ALGORITHM=INSTANT;
+CREATE INDEX `idx_organization_id_timestamp_desc` ON `audit_log` (`organization_id`, `timestamp` DESC);

migration/mysql/atlas.sum

@@ -1,4 +1,4 @@
-h1:8YDpIU578LqzbUEvkNKDitZCF1LqIotUqMUsDTn5g08=
+h1:sS2p63rku0jPZajD6/sreQgblM6HPitbdC5vlWn+gNE=
 20240626022133_initialization.sql h1:reSmqMhqnsrdIdPU2ezv/PXSL0COlRFX4gQA4U3/wMo=
 20240708065726_update_audit_log_table.sql h1:fi8Xxw4WfSlHDyvq2Ni/8JUiZW8z/0qWWyWm6jFdUy8=
 20240815043128_update_auto_ops_rule_table.sql h1:IKSW9W/XO6SWAYl5WPLJSg6KdsfcZ3rfQhIrf7aOnYc=
@@ -43,3 +43,4 @@ h1:8YDpIU578LqzbUEvkNKDitZCF1LqIotUqMUsDTn5g08=
 20260514000000_update_feature_variation_value_schema.sql h1:ocGacenoNr4+sVeCeWASFDnUn+Sn2n04XmZpSf+82qM=
 20260713000000_create_notification_tables.sql h1:87SKJUcoNMMv48953z5QyaS9c/AxzJamnf+SZ6/SMJU=
 20260728000000_add_notification_deleted.sql h1:yky/5yXtjVf4Vl9si/FJ5ODUSPzjC1NfUsyfLCTh97I=
+20260826000000_add_audit_log_organization_id.sql h1:rgjKMBWwGhPyBpm7UrSaQMNjW+YuMWpqD3ELK9rZaWo=

migration/postgres/20260826000000_add_audit_log_organization_id.sql

@@ -0,0 +1,6 @@
+-- atlas:txmode none
+
+-- Modify "audit_log" table: organization-level events are stored here with an
+-- empty environment_id, so organization admins can read their own activity.
+ALTER TABLE audit_log ADD COLUMN organization_id VARCHAR(255) NOT NULL DEFAULT '';
+CREATE INDEX CONCURRENTLY idx_audit_log_organization_timestamp ON audit_log (organization_id, timestamp DESC);

migration/postgres/atlas.sum

@@ -1,5 +1,6 @@
-h1:s6kmbtFcVifKk1JOyBlaUyVfQtEFuVNgbbGIlTM7A10=
+h1:lS18LuoPXqICDLNHWc+AfUWz0jFwtTggjgnjGw/z9pA=
 20260226174000_initialization.sql h1:orWPjklxeOP046jFps+1UhJDdaSDPwDjlODiSe/479c=
 20260514000000_update_feature_variation_value_schema.sql h1:Jp91HETgQvAvqNGTgSBip8ipx3aAI5C4Tsa2z8eplB4=
 20260713000000_create_notification_tables.sql h1:TqsueyglKP41Towy2FsYTGyxI3+h4bRbpGS4MZLLNhw=
 20260728000000_add_notification_deleted.sql h1:OqtTB/u1YAJXjuhwfCJjfTfuNuaLtSvbUvbXD/82L6E=
+20260826000000_add_audit_log_organization_id.sql h1:/o7AtAf2nIjI3jkKtmXn5BuR+odCMvNkGoIikRGGxZg=